Dissertations / Theses: 'Mobile Network Operators'

1

Tsuboya, Hisakazu 1967. "Migration strategies for competitive advantage of mobile network operators." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/16991.

Full text

Abstract:

Thesis (S.M.M.O.T.)--Massachusetts Institute of Technology, Sloan School of Management, Management of Technology Program, 2003. Includes bibliographical references (leaves 145-149). This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. Innovation in platform industries, including mobile telecommunications, has a great impact on societies and economies; hence a migration from an existing platform to the subsequent one should be progressed under careful forecasting, weighed scenarios and strategies that encompass a broad view. This thesis analyzes why mobile network operators are struggling to move from the second generation (2G) and its derivatives to the third generation (3G) technologies and proposes migration strategies, which allow them to sustain their competitive advantage. First, a migration model is proposed as a reinforcing loop model composed of two dynamics, "Platform Migration" caused by a shortage of network capacity, and "Service Innovation" triggered by a decline in ARPU (Average Revenue Per User). Platform migration is an implementation process for new platform technologies and can be categorized into Revolution-type and Evolution-type. After these two schemes have been evaluated through case studies, Collaboration-type migration, an enhanced Evolution-type, is proposed for future, technically diversified situations. Service Innovation is a process for creating new profitable services to give further revenue growth. Empirical analysis clarifies that mental breakthrough management is a common approach in the mobile industry and proposes that a mixture of corporate, partner and market initiatives be adopted for diversified customer preference. This thesis then proposes the following strategies for future successful migration: first, mobile network operators should drive the migration cycle powerfully, concentrating on successive service innovation dynamics for their revenue growth and the next platform migration. Second, they should choose migration schemes carefully according to their level of technology leadership, value chain leadership and investment capability. Finally, service platform should be considered for realization of innovative services with Partnership Dynamics. by Hisakazu Tsuboya. S.M.M.O.T.

APA, Harvard, Vancouver, ISO, and other styles

2

Patterson, Cameron Webster. "An Economic Model of Subscriber Offloading Between Mobile Network Operators and a WLAN Operator." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/50660.

Full text

Abstract:

With increasing mobile data demand there is a push towards heterogeneous networks. Small-scale operators (SSOs) of WLANs are becoming more prevalent, while Mobile Network Operators (MNOs) seek an outlet for their customers' data usage. These conditions prompt the need for an effective relationship between the two parties for the purpose of offloading cellular data traffic to WLANs in a way that is economically beneficial to all involved. This thesis presents a model of such a relationship, in which the SSO sets a strategic offloading price per subscriber and several MNOs can choose how many subscribers they want to offload in order to minimize their costs. We determine the optimal offloading price, identify how the SSO incorporates its own network's quality of service (QoS) into its price decision, and examine the way in which the MNOs' cost structures affect their ability to offload. This model can be applied by both MNOs and SSOs to make informed network deployment decisions, even before engaging in an offloading relationship. Master of Science

APA, Harvard, Vancouver, ISO, and other styles

3

Ghaffari, Fariba. "A novel blockchain-based architecture for mobile network operators : Beyond 5G." Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAS009.

Full text

Abstract:

Alors que l'architecture centralisée et autonome existante des opérateurs de réseaux mobiles (ORM) fournit une connectivité à des milliards d'utilisateurs, ils souffrent d'un manque de mécanismes techniques pour améliorer la collaboration entre les MNO et les autres fournisseurs.Cela a des impacts sur les coûts de mutualisation, ainsi que sur la consommation d'énergie et l'impact environnemental. Cela peut également empêcher l'avènement de modèles commerciaux plus collaboratifs avec d'autres fournisseurs ou même avec des clients. De plus, la complexité des réseaux au-delà de la 5G peut dépasser la capacité d'un ORM à gérer le coût et la complexité. Enfin, les architectures MNO existantes souffrent également de leur centralisation, problèmes techniques et vulnérabilités.Relever ces défis n'est pas un voyage simple. Cependant, nous croyons qu'il y a un intérêt à proposer à la communauté de la recherche en télécommunications une approche de table rase. De telles solutions alternatives doivent - au moins - avoir un écosystème distribué/décentralisé, assurer la fiabilité entre les acteurs dans l'environnement méfiant, partager les ressources entre les parties prenantes, apporter une automatisation plus élevée et fournir une sécurité et une confidentialité suffisantes.La blockchain est une technologie de registre distribué peer-to-peer qui ne peut être mise à jour que par consensus entre la majorité des nœuds participants sur le réseau. En raison de ses caractéristiques intrinsèques, la Blockchain et les smart contrats peuvent réduire le coût, la latence et la complexité de la collaboration entre les entités d'un réseau cellulaire multi-acteurs tout en augmentant la fiabilité, la traçabilité et les capacités de supervision.Ce travail propose un système de connectivité mobile multi-acteurs qui fournit une solution distribuée et sécurisée prou les entités et les acteurs de l'écosystème du réseau cellulaire. Pour ce faire, ce travail fournit dans un premier temps une étude complète des défis existants dans les réseaux cellulaires actuels concernant les aspects commerciaux et de collaboration, les problèmes techniques et la sécurité. Les résultats de ces études nous ont amenés à proposer deux contributions principales, l'une concernant la coopération entre les différents acteurs de l'écosystème des réseaux cellulaires, et l'autre pour la collaboration entre les ORM pour la gestion des identités et des profils.Plus précisément, la première contribution propose un nouvel écosystème de télécommunications hybride (distribué-décentralisé) pour façonner la conception des réseaux au-delà de la 5G et de la 6G. Cette méthode offre la possibilité d'éliminer toute autorité centrale, d'augmenter la tolérance aux pannes du système, de simplifier les procédures informatiques et de sécuriser le paiement entre les entités.La deuxième contribution introduit une nouvelle gestion des profils d'utilisateurs et un portage des numéros et des profils mobiles en plus de la Blockchain et des contrats intelligents. Cette méthode vise à éliminer l'autorité centrale dans la procédure de portage en créant un système plus collaboratif et distribué dans ce but, à augmenter l'automatisation et la confiance, et à remédier à la latence élevée de la méthode existante de portage des ORM. De plus, il offre la possibilité de porter les profils des utilisateurs vers l'ORM destinataire ainsi que le numéro de téléphone avec une procédure automatisée sans autorité centralisée ni tiers.Pour évaluer le système proposé et analyser sa faisabilité de mise en œuvre, nous avons proposé trois scénarios de déploiement dans lesquels la Blockchain peut être logiquement positionnée soit en RAN, cœur de réseau, ou couche de service. Les résultats de l'évaluation montrent que le système est suffisamment évolutif en ce qui concerne le nombre d'acteurs et de collaborateurs, et en fonction des exigences du réseau, ses performances et son niveau de sécurité sont ajustables While the existing centralized and stand-alone architecture of Mobile Network Operators (MNO) provides connectivity to billions of users, they suffer from a lack of technical mechanisms to enhance collaboration between MNOs and other providers.This has impacts on mutualization costs, as well as on energy consumption and environmental impact. This may also prevent the advent of more collaborative business models with other providers or even with customers. Moreover, the complexity of 5G and beyond 5G networks may surpass the capability of one MNO to manage the cost and the complexity of connection. Finally, existing MNO architectures also suffer from their centralization, resulting in several technical issues and vulnerabilities.Addressing these challenges is not a straightforward journey. MNO architectures have been defined for nearly three decades by well-established standardization bodies. However, we believe there is an interest in proposing to the telecom research community a clean-slate approach. Such alternative solutions need to -at least- have a distributed/ decentralized ecosystem, provide trustworthiness between actors in the distrusted environment, share the resources among stakeholders, bring higher automation, and provide sufficient security and privacy. Any alternative addressing these requirements would be a promising potential solution.Blockchain is a peer-to-peer distributed ledger, cryptographically secure, append-only, immutable, traceable, and transparent technology that is only updateable via consensus among a majority of the participating nodes on the network. Due to its intrinsic features, Blockchain, and smart contracts can decrease the cost, latency, and complexity of collaboration among entities in multi-actor cellular network while increasing the trustworthiness, traceability, and supervision abilities.This work proposes a multi-actor mobile connectivity system that provides a distributed, trustful, automated, low-cost, and secure solution for the entities and actors of the cellular network ecosystem. To do so, this work provides at first a comprehensive study of the existing challenges in current cellular networks regarding business and collaboration aspects, technical issues, and security. The results of these studies have led us to propose two main contributions, one regarding the cooperation among different actors of the cellular network ecosystem (i.e., MNOs, service providers, small-scale businesses, vendors, and end-users) and another for collaboration among MNOs (and potentially with regulation bodies) for identity and profile management.More precisely, the first contribution proposes a novel hybrid (distributed-decentralized) telecommunication ecosystem to shape the beyond 5G and 6G network design. This method provides the opportunity to eliminate any central authority, increase the fault tolerance of the system, simplifies IT procedures, and provide secure payment among entities.The second contribution introduces a new user profile management and mobile number and profile porting on top of Blockchain and smart contracts. This method aims to eliminate the central authority in the porting procedure by creating a more collaborative and distributed system to this aim, increase automation and trustfulness, and address the high latency of the existing method for porting the MNOs. Moreover, it brings the opportunity of porting the users' profiles to the recipient MNO as well as the phone number with an automated procedure without a centralized authority or third parties.To evaluate the proposed system and analyze its implementation feasibility, we proposed three deployment scenarios in which the Blockchain can be logically positioned either in RAN, core network, or service layer. The evaluation results show that the system is scalable enough regarding the number of actors and collaborators, and based on the network requirements, its performance and security level are adjustable

APA, Harvard, Vancouver, ISO, and other styles

4

Markendahl, Jan. "Mobile Network Operators and Cooperation : A Tele-Economic Study of Infrastructure sharing and Mobile Payment Services." Doctoral thesis, KTH, Kommunikationssystem, CoS, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-28756.

Full text

Abstract:

Mobile network operators are currently faced with a number of challenges at the market. The revenues from voice services have decreased the last couple of years. Mobile broadband access services are being adopted and the demand is increasing. The increasing traffic volumes require investments in order to increase the network capacity. This development leads to a large interest in network solutions that can offer high capacity and low cost. Besides the use of more efficient radio access technology mobile network operators use strategies for network deployment and operation involving other market actors. Operators share networks with competitors or outsource network deployment and operation to other companies, e.g. suppliers of network equipment. In these examples the mobile operators cooperate about the networks, the relations to end-users are the same as if the operator would operate the network on its own. However, in other areas other actors enter the market for mobile services where mobile operators traditionally have been the dominant player. Handset manufacturers and Internet companies offer value added services and applications to the end-users. They also establish relations with customers of the mobile operators. Hence, mobile operators look into new technical solutions and services in order to reduce costs and find new services and sources of revenues. Many of the networking solutions and services require that the operator cooperates with some other actor. In this PhD thesis cooperation strategies of mobile network operators are analyzed including cooperation with competitors, customers and different types of partners. The partner can be a provider of a non-telecom service like public transportation, financial institutes or third parties taking intermediary roles. The main research questions in the thesis revolves around why and how mobile operators cooperate. The drivers for cooperation and the way the cooperation is organized is analyzed for a number of cases. Three types of services and markets are analyzed: - Public mobile broadband access services - Services and solutions for indoor wireless access - Mobile payment, ticketing and contactless services A number of technical solutions, business concepts and different types of cooperation and business scenarios have been investigated. Two overall research questions that are applicable for all cases of cooperation are identified for the analysis. - What are the main drivers for a specific type of cooperation? - In what ways can the actors organize the cooperation? QC 20110121 Affordable Wireless Broadband Access Force

APA, Harvard, Vancouver, ISO, and other styles

5

Laws, Richard, and Ni Mo. "Product & Pricing Standardization within the Global Mobile Network Operator Industry." Thesis, Högskolan i Gävle, Avdelningen för ekonomi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-19976.

Full text

Abstract:

Aim: This study focuses on the degree to which mobile network operators standardize or adapt their product and pricing strategies amongst their foreign subsidiaries. Method: 10 mobile network operators with large overseas business investments and 70 of their foreign majority-owned subsidiaries are included in this empirical analysis. Variables related to data, SMS, Voice, and other relevant variables, are selected to represent ‘product’ marketing characteristics; and number of plans and specific price points across three ‘price baskets’ to represent ‘price’ marketing. Results & Conclusion: MNOs exhibited a moderate degree of standardization in terms of product design, with a lesser degree of standardization for price. Standardization scores were highly positively correlated to subsidiary operations in markets within the same region and level of economic development as the domestic market. There is also a notable clustering of marketing approaches in the Sub-Saharan African region. Implications: Existing research on standardization is reinforced by these results. Future research on the MNO industry, if global in nature, will need to account for the large degree of differences between markets. If focused on specific regions, studies can proceed on the basis of similarity in marketing strategies. Contribution: This is the most recent quantitative study on standardization in the MNO industry carried out in the last 10 years. Since that time the industry has also undergone significant changes.

APA, Harvard, Vancouver, ISO, and other styles

6

Jansson, Carl Johan, and Shuvo Deep Dass. "Customer Based Brand Equity and Intangibles : The case of the Swedish mobile network operators." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-179813.

Full text

Abstract:

Problematization: Studies indicate that there is a lack of strong brands among the Swedish mobile network operators. Problems of retaining customers are common among the big operators. Few studies on brand equity for intangible products have been done. Purpose: The purpose of this paper is to investigate which factors influence brand equity in the Swedish service sector of mobile network operators. Theory: This paper is limited to one aspect of brand equity, namely customer based brand equity. Common constructs of customer based brand equity are: brand awareness, brand associations, brand loyalty, and perceived quality. Methodology: The data was collected with self-administered delivery and collection questionnaires, which were distributed among university students. Data: 400 questionnaires were handed out and 363 responses were valid. Results and Conclusion: This study indicates the importance of brand associations, brand loyalty, and brand trust for establishing customer based brand equity among the Swedish mobile network operators.

APA, Harvard, Vancouver, ISO, and other styles

7

Naguib, Mina. "On the security of VoIP mobile network operator and international carrier interconnects." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-199056.

Full text

Abstract:

All Mobile Network Operators (MNOs) as well as international carriers are moving voice services from the legacy Public Switched Telephone Network (PSTN) to Voice over IP (VoIP). The benefit is that VoIP traffic can be easily rerouted at any moment, thus giving companies a variety of options as traffic can be rerouted to any carrier of choice leading to different Quality of Service (QoS) levels (and thus agreements) as well as different prices to choose from. With a fierce competition for the telecom companies involved in the voice traffic hubbing business, this new landscape offers not only opportunities but also opens the system to vulnerabilities. The stakes are actually quite high: If harm can be done to one of these international carriers, other companies will route away their traffic. The result will be significant financial damages for the company as well as a serious harm to its reputation. The aim of this paper is to raise awareness that internationalcarriers and in particular their VoIP traffic can be exposed to debilitating attacks to harm these systems that are critical for our everyday life. The experimentation in this project demonstrates with a hands-on example how a major carrier can be hacked and rendered useless. In particular, we craft a framework for testing the security of interconnects between MNOs and international carriers. The central point of the paper will be to demonstrate how easy it can be to attack major carriers in the market: using common open source tools without having any information in advance. Moreover, the goal is to understand how the market functions, how interconnects between companies are built, where the weaknesses are, and which solutions can thwart those threats and secure these systems.

APA, Harvard, Vancouver, ISO, and other styles

8

Zich, Štěpán. "Analýza trhu virtuálních mobilních operátorů v České republice." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-197598.

Full text

Abstract:

The thesis analyzes the Czech market of the mobile virtual network operators. It's a young and dynamic market. First entity entered in late 2012 and today there are over sixty competitors. This thesis therefore includes the historical background of the liberalization of the telecommunications market in CZ. Furthermore, the text briefly describes today's worldwide and Czech situation in telecommunications. The main goal of the thesis is to analyze whether there is stronger competition on the Czech telecommunications market after the entry of mobile virtual network operators and which of them are likely to succeed. Using Porter's five forces analysis the thesis concludes that there is a stronger competition. The MVNO's success matrix indicates which subjects will win on the market and the strategic groups' analysis compares them with their nearest competitors. The synthesis of applied analyses brings a complex view on the telecommunication market in CZ after the entry of MVNOs.

APA, Harvard, Vancouver, ISO, and other styles

9

Malebanye, Potsane. "To investigate how Mobile Cellular Network Operators can increase the average revenue per user by stimulating the usage of broadband services." Thesis, University of South Africa, 2007. http://hdl.handle.net/10500/56.

Full text

Abstract:

The objective of this research is to investigate how mobile cellular network operators can increase the average revenue per user by stimulating the usage of mobile broadband services. There is a general consensus that the revenue from voice calls is slowly reaching saturation; hence, mobile cellular operators, service providers and content providers are looking for other sources of revenue from their new and existing customers. They are therefore beginning to focus more intensively on customer retention and on developing new strategies that will stimulate the usage of high speed mobile data services. The research shows that most people are aware of many of the mobile data services offered by operators, but that they thought that they were unreliable, slow, difficult to use and expensive. By and large, people signed up for mobile data services because they wanted a mobile always-on connection anytime, anywhere, with faster speed when accessing e-mail and other services or when downloading data from the Internet. The majority of people would use mobile broadband internet service if it cost less to use; if the speed were faster and the service were easy to use; if the cellular phone had a larger screen and used less battery power; and if the keyboard were larger. The relationship between Network operators, WASPs and content providers was found to be good, even though at times it is strained by the increased competition between them; this forces them not to cooperate on some issues for fear of compromising their competitive advantage.

APA, Harvard, Vancouver, ISO, and other styles

10

Nduna, Chipo. "Financial freedom in mobile money: the role of the central bank in Zimbabwe." University of Western Cape, 2020. http://hdl.handle.net/11394/7321.

Full text

Abstract:

Magister Legum - LLM This paper analyses how the Zimbabwean economic history has led to the perception and attitude of the population towards the financial industry. It has been blighted by extremes to the extent that in 2008 the Zimbabwe economy had one of the highest hyperinflation rate in the world. Pettinger sums up the hyperinflation journey of Zimbabwe as having begun in the 1990s shortly after the disastrous land reform. This is where private farms were grabbed from landowners and re-allocated to mostly peasant farmers who had no technical know-how in farming. It was also a time when the country was involved in an unbudgeted and unsolicited second Congo civil war necessitating that the Government increase salaries to cater for soldiers and other officials assigned to the Congo. Earlier on the government had buckled under pressure from former war liberators (war veterans) and paid out unbudgeted bonuses.

APA, Harvard, Vancouver, ISO, and other styles

11

Ceita, Yannick Soares de Barros de. "Shared solution for telecommunications networks." Master's thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/23613.

Full text

Abstract:

Mestrado em Engenharia Eletrónica e de Telecomunicações Despite the substantial increase in the percentage of the globe surface covered by mobile communications, there are issues that have hampered the implementation and development of cellular networks in regions where the market and economic power are still under development. Many of these issues are of economic and financial nature. It is curiously a contradictory fact, since mobile communications on several occasions proved to be a great ally for the growth and economic development of this type of regions. Therefore, in situations such as these, where the development or installation of cellular networks is blocked or conditioned by economic and financial factors, the adoption of infrastructure or service sharing methods can facilitate the implementation and expansion of cellular networks in these regions. The work developed in this dissertation seeks to identify and study the most common methods of cellular network sharing. Through the use of a numerical tool, the effects and techno-economic benefits that each sharing method will bring to the operators interested in entering markets with these characteristics will be analyzed. Apesar do crescente aumento da superfície terrestre coberta pelas comunicações móveis, há questões que têm dificultado à implementação e desenvolvimento das redes celulares nas regiões onde o mercado e o poder económico ainda estão em desenvolvimento. Muitas dessas questões são de carácter económico e financeiro. O que se torna, curiosamente, um facto contraditório, uma vez que as comunicações móveis em diversas ocasiões provaram ser um grande aliado para o crescimento e desenvolvimento económico deste tipo de regiões. Portanto para situações como estas, onde o desenvolvimento ou instalação de redes celulares é travado ou condicionado por factores de carácter económico e financeiro, a adopção de métodos de partilha de infraestruturas ou serviços consegue facilitar a implementação e expansão de redes celulares nestas regiões. O trabalho desenvolvido nesta dissertação procura identificar e estudar os métodos mais comum de partilha. Através do uso de uma ferramenta de cálculo, analisam-se também os efeitos e benefícios económicos que cada método de partilha trará para os operadores interessados em entrar em mercados com características aqui consideradas.

APA, Harvard, Vancouver, ISO, and other styles

12

Jeoun, Kristina S. "The tactical network operations communication coordinator in mobile UAV networks." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Jun%5FJeoun.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Opatřil, Marek. "Návrh metodiky pro výběr provozovatelů virtuálního operátora v ČR." Master's thesis, Vysoká škola ekonomická v Praze, 2012. http://www.nusl.cz/ntk/nusl-162508.

Full text

Abstract:

The main aim of this work is design methodology for the selection of subject - service provider of virtual operator in the Czech Republic and applied methodology on several subjects. Another aim is to analyze the situation in the mobile telecommunications markets in the world, especially from the perspective of MVNO. The last objective is a detailed characterization of conditions and the state of the mobile telecommunications market in the Czech Republic The second chapter describes the entities of mobile telecommunications market with a detailed focus on MVNO. The third chapter describes the critical factors that determine success MVNO. Later in thesis I analyze the mobile virtual network operator in the world and focuses on the Czech telecommunications market. In the final phase of thesis is I design methodology for selecting potential operator - the operator a virtual mobile operator in the Czech Republic, along with the application of the methodology on several subjects and verification. The benefit of this work is proposed methodology and its application for companies that are interested in entering the Czech telecommunications market through mobile virtual operator and companies that offer foundation and the know-how to potential operators of mobile virtual network operator. A side benefit of this work is a comprehensive look at the principle of operation of mobile virtual network operators in telecommunications.

APA, Harvard, Vancouver, ISO, and other styles

14

Liu, Kenneth Lap Chi. "Supply chain for mobile network operator." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62772.

Full text

Abstract:

Thesis (S.M. in Engineering and Management)--Massachusetts Institute of Technology, Engineering Systems Division, 2010. Cataloged from PDF version of thesis. Includes bibliographical references (p. 72-73). The purpose of this study is to understand and get insights on the characteristics of mobile device supply chain management for mobile networks operators. The relationship between corporate strategy and supply chain strategy is examined. The effectiveness of outsourcing is evaluated. And the areas for effective outsourcing are identified. The study has shown that MNOs with customer retention as product strategy are likely to be more concerned with reducing time in their supply chain. However it is unclear that MNOs with generation of additional revenue as product strategy are likely to be more concerned with reducing cost in their supply chain. Reducing cost appears to be just as important for MNOs that focus on customer retention. The study has shown that outsourcing does not guarantee better corporate performance. It is unclear what the effect is of outsourcing on Profitability, Return on Investment, or Growth in Market share. The study has shown that areas that are more suitable for outsourcing include both forward and reverse logistics. MNOs should evaluate where their strengths are before outsourcing activities to third party providers. by Kenneth Lap Chi Liu. S.M.in Engineering and Management

APA, Harvard, Vancouver, ISO, and other styles

15

Fernandez, Jean Eli Cerrillo. "A cognitive mechanism for vertical handover and traffic steering to handle unscheduled evacuations of the licensed shared access band." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/169331.

Full text

Abstract:

There has been a steady growth in the traffic generated by Mobile Network Operators (MNOs), and by 2020 it is expected to overload the existing licensed spectrum capacity and lead to the problem of scarce resources. One method to deal with this traffic overload is to access unlicensed and shared spectrum bands using an opportunistic approach. The use of Licensed Shared Access (LSA) is a novel approach for spectrum sharing between the incumbent user (i.e., the current owner of the shared spectrum) and the LSA licensee (i.e., the temporary user of frequencies, such as an MNO). The LSA system allows the incumbent users to temporarily provide the LSA licensee with access to its spectrum resources. However, licensees must adopt vertical handover and traffic steering procedures to vacate their customers from the LSA band without causing interference, whenever this is required by the incumbent. These procedures should be carried out, de facto, before the base station is turned off as a part of a rapid release of unscheduled LSA band facing evacuation scenarios. Thus, in this dissertation, a cognitive mechanism is proposed to make decisions in advance to find the best target network(s) for evacuated customers in connected mode and with active traffic per class of service. On the basis of these decisions, the vertical handover and traffic steering procedures are carried out for the best target network(s), which are selected in advance and undertaken immediately to avoid interference between the licensee and incumbent services. Furthermore, this guarantees the seamless connectivity and QoS of evacuated customers and their traffic respectively, during and after the unscheduled evacuation scenarios. A performance evaluation conducted in a simulating scenario consisting of one LTE-LSA and three Wi-Fi networks, demonstrated that the proposed solution could be completed within the time required for the unscheduled evacuation, as well as, being able to ensure the QoS and seamless connectivity of the evacuees. The total execution time obtained during the performance evaluation of the proposed solution was around 46% faster than of two related works and could thus avoid interference between the licensee and incumbent services.

APA, Harvard, Vancouver, ISO, and other styles

16

Diblík, Jaroslav. "Mobilní komunikace v ČR." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-193669.

Full text

Abstract:

The thesis deals with the topic of mobile communication in Czech republic. Its main task is to make reader fimiliar with different types of technology and digital standards on Czech mobile communication market. Thesis shows mobile communication providers in Czech republic, not only the conventional ones, but especially virtual operators(MVNO). It defines the legislation and position of Czech Telecommunication Office (ČTÚ). At the end, it analyzes the current market situation and try to offer the best solution for possible customer and also tries to find out whether it would pay off to the customer to switch to the virtual operator, based on mobile tariff price calculator.

APA, Harvard, Vancouver, ISO, and other styles

17

Gutti, Krishna. "Low cost secure network connectivity for a municipal organization." Thesis, KTH, Mikroelektronik och Informationsteknik, IMIT, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-92266.

Full text

Abstract:

Wireless Local Area Networks (WLANs) based on 802.11 technology were initially conceived with the aim of providing wireless connectivity to client devices in limited areas, such as office buildings, homes, etc. or in places where wires are too expensive to be placed. This ‘anywhere’ connectivity is said to have improved worker’s productivity by allowing one to work flexibly from various places besides one’s desk. Currently we are witnessing the growth of both public and private networks based on WLAN technology. Such hotspots are usually limited to the network owner’s premises such as her office, campus, etc. This limits the total coverage area of this network. It is often not economically feasible for a network access provider to install Access Points at all places that a network user might go. This has become a problem for many network access providers; a sensible solution would be to collectively address the problem by entering into roaming agreements as is already done by most Wide Area Wireless Network providers. Such operator specific roaming agreements can provide nearly continuous coverage over a much wider area such as an entire city. One of the goals of this project was to study potential cost effective technical solutions that provide WLAN access to City of Stockholm’s network based on 802.11 technologies; including evaluation from different technical aspects (e.g., capacity enhancements, improvements in handover latency, etc). Proper deployment and management strategies were also evaluated. Technologies permitting differentiated services for users, enabling provisioning of Voice over Wireless Local Area Network (VoWLAN) services and other interactive services were studied. Technologies for authentication, authorization and accounting were studied. Additionally technical means of providing secure access to the wireless network were investigated. Evaluation of architectures that allow inter-operator roaming were made. Today’s corporate users are increasingly mobile and there is a need to provide secure access to corporate data to these mobile users. The coverage offered by WLAN networks even with large roaming agreements would still have coverage gaps which can be reduced by relying on the 3G networks which are being widely deployed. Virtual Private Network technologies are successfully used for providing secure remote access to data and Mobile IP technology provides application persistence to mobile users even while switching between networks (e.g., WLAN to 3G). There is a need for them to co-exist in order to provide secure, mobile access to data. Such secure mobile access could also be provided without relying on the above, standardised solutions. A goal of this master’s thesis was to evaluate the technical solutions to enable such secure, mobile access to data. Current products were evaluated and a suggestion of suitable products for the City of Stockholm was given. The above solutions together would provide the City of Stockholm with secure wireless network connectivity[.] Trådlös Lokal Areal Nätverken (WLANs) baserat på 802.11 teknologien var i början uppfattade med det sikta med av skaffande trådlös anslutning till klienten anordningen i inlemmat områdena , sådan som kontor byggnad , hemmen etc. eller på platsen var tråden är alltför dyr till vara placerat. Den här ‘var som helst’ anslutning är sa till har förbättrat arbetaren produktiv vid tillåt en till verk böjlig från olika ställen for resten en’s skrivbord. Just nu vi er vittne växten av båda allmänhet och privat nätverken baserat på WLAN teknologien. Sådan hotspots är vanligtvis inlemmat till nätverken ägare lokalerna sådan som henne kontor, läger etc. Den här gränsen den räkna samman täckningen areal av de här nätverken. Den er ofta inte ekonomisk genomförbar till installera Tillträde Meningen i det hel tåt ställen så pass nätverken förbrukaren makt gå. Den här har bli ett problem för många nätverk skaffa; en förståndig lösande skulle bli till samlad adress problemet vid inlåtande in i att ströva avtalen så är redan gjort vid mest Vid Areal Trådlös Nätverken skaffa. Sådan operatör bestämd ströva avtalen kanna skaffa nästan kontinuerlig täckningen över en mycket vid areal sådan som en hel stor stad. En om målarna av det här projektet var till att studera potential kostnad effektiv teknisk lösandet så pass skaffa WLAN tillträde till Stor stad av Stockholm nätverken baserat på 802.11 teknologerna inklusive bedömningen från olik teknisk aspekterna (e.g., utrymme förstärkningarna , förbättringarna i handover latent tillstånd etc). Rätt spridandeen och företagsledning strategisk var också värderat ut. Teknologerna tillåt skilj tjänsten för förbrukaren, sättande i stånd till tillhandahållande av Röst över Trådlös Lokal Areal Nätverken (VoWLAN) tjänsten och annan interaktiv tjänsten var studier. Teknologerna för authentication, bemyndigandena och räkenskapen var studier. Ytterligare tekniskt medel av skaffande befästa tillträde till trådlös nätverken var undersöka. Bedömningen av arkitekturen så pass tillåta begrava - operatör ströva var gjord. Idag gemensam förbrukaren är alltmer rörlig och där er en behov till skaffa befästa tillträde till gemensam datan till de här rörlig förbrukaren. Täckningen erbjudande vid WLAN nätverken evn med stor ströva avtalen skulle stilla har täckningen öppning vilken kanna bli nedsatte vid användande den 3G nätverken vilken er vida spridde. Verklig Privat nätverk teknologerna ni är lyckosam använd för skaffande befästa avlägsen tillträde till datan och Rörlig IP teknologien skaffar applicering hårdnackenheten till rörlig förbrukaren jämn fördriva tiden kopplande emellan nätverken WLAN till 3G). Där er ett behov för dem till tillpass - finnas for att skaffa befästa, rörlig tillträde till datan. Sådan befästa rörlig tillträde kunde också bli försynt utan tillit till den över, standardiserat lösandet. En målet av den här övervinna teorin var till att bedöma den teknisk lösandet till möjliggöra sådan befästa, rörlig tillträde till daton. Ström produkten var värderat ut och en förslagen av passande produkten för staden av Stockholm var givit. Den över lösandet tillsammans skulle skaffa staden av Stockholm med befästa trådlös nätverken anslutning[.]

APA, Harvard, Vancouver, ISO, and other styles

18

Chatzimichail, Konstantinos. "How to Cut the Electric Bill in Mobile Access Networks: A Mobile Operator's Perspective." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177440.

Full text

Abstract:

One of the major challenges that mobile operators are facing is the increasing power consumption costs as a consequence of the network densication experienced in current and future mobile access networks. This power increase causes both financial and environmental concerns to operators, since both the operational expenses and the CO2 emissions are affected. This Master Thesis investigates and analyses various deployment architectures in urban and suburban areas, considering both the radio access and backhaul segments, as well as system solutions that are expected to increase the energy efficiency of Long Term Evolution (LTE) networks, such as Discontinuous Transmission - Discontinuous Reception (DTX-DRX) enhancement of future mobile networks. During this dissertation, it is investigated whether power efficient solutions can also be cost efficient in terms of Total Cost of Ownership (TCO) in urban environments. Additionally, the DTXDRX enhancement of HetNets is studied on a dense urban case, providing both nancial and environmental benefits by its utilization. The main results indicate that significant power and TCO savings can be achieved by the deployment of Heterogeneous Networks in urban environments. Fiber optics backhauling seems to be more attractive compared to Microwaves in these areas. Finally, DTX-DRX enhanced HetNets result in high power savings and can be financially attractive under particular conditions.

APA, Harvard, Vancouver, ISO, and other styles

19

Tay, Chee Bin, and Whye Kee Mui. "An architecture for network centric operations in unconventional crisis: lessons learnt from Singapore's SARS experience." Thesis, Monterey, California. Naval Postgraduate School, 2004. http://hdl.handle.net/10945/1303.

Full text

Abstract:

Approved for public release, distribution is unlimited Singapore and many parts of Asia were hit with Severe Acute Respiratory Syndrome (SARS) in March 2003. The spread of SARS lead to a rapidly deteriorating and chaotic situation. Because SARS was a new infection, there was no prior knowledge that could be referenced to tackle such a complex, unknown and rapidly changing problem. Fortunately, through sound measures coupled with good leadership, quick action and inter-agency cooperation, the situation was quickly brought under control. This thesis uses the SARS incident as a case study to identify a set of network centric warfare methodologies and technologies that can be leveraged to facilitate the understanding and management of complex and rapidly changing situations. The same set of methodologies and technologies can also be selectively reused and extended to handle other situations in asymmetric and unconventional warfare. Office of Force Transformation, DoD US Future Systems Directorate, MINDEF Singapore. Lieutenant, Republic of Singapore Army Civilian, Defence Science and Technology Agency, Singapore

APA, Harvard, Vancouver, ISO, and other styles

20

Norton, David K. "Joint mobile network operations routing design and quality of service configuration." Thesis, Monterey, Calif. : Naval Postgraduate School, 2007. http://bosun.nps.edu/uhtbin/hyperion-image.exe/07Sep%5FNorton.pdf.

Full text

Abstract:

Thesis (M.S. in Computer Science)--Naval Postgraduate School, September 2007. Thesis Advisor(s): Xie, Geoffrey. "September 2007." Description based on title screen as viewed on October 25, 2007. Includes bibliographical references (p. 127-129). Also available in print.

APA, Harvard, Vancouver, ISO, and other styles

21

Březinová, Jana. "Analýza trhu mobilních virtuálních operátorů v České republice." Master's thesis, Vysoká škola ekonomická v Praze, 2014. http://www.nusl.cz/ntk/nusl-193455.

Full text

Abstract:

The aim of this thesis is to analyse the mobile virtual operator market in the Czech Republic, regarding its development compared to abroad, and to identify the opportunities and threats in the Czech market. The first chapture describes the global development and future trends. The second chapter characterizes the development of Czech market of mobile services and important events preceding the entry of virtual operators. The third chapter focuses on analysis of Czech market compared to British, the mobile virtual operators are segmented and evaluated based on the potential for future success in the market. The opportunities and threats are identified through own qualitative research using the technique of focus group.

APA, Harvard, Vancouver, ISO, and other styles

22

Štěpán, Marek. "Mobile virtual network operator as a new type of a telecommunication services provider." Master's thesis, Vysoká škola ekonomická v Praze, 2012. http://www.nusl.cz/ntk/nusl-142195.

Full text

Abstract:

The primary objective of the master's thesis is to identify and to characterize following action steps, which lead to establish a virtual network operator as a new start-up company. Firstly, a virtual operator is characterized from a technical point of view and as an innovation. Czech telecommunication market is compared to foreign markets by its price level. The power of market competitors was described and market gaps were identified. A project founding a virtual network operator was made to support the main objective of the thesis. General action steps were identified and commented after the project part of the thesis.

APA, Harvard, Vancouver, ISO, and other styles

23

Bilavčík, Martin. "Marketingová strategie společnosti Telefónica O2." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2010. http://www.nusl.cz/ntk/nusl-222615.

Full text

Abstract:

The goal of this diploma thesis is to prepare a marketing strategy for Telefónica O2 Czech Republic, a.s. The strategy is focused on target market and is based on questionnaire research made with respondents from target population. Strategy contains proposal of steps which could help to acquire new customers and keep recent customers. The diploma thesis also contains summary of information about the target population usable by Telefónica O2 for further analysis.

APA, Harvard, Vancouver, ISO, and other styles

24

Tay, Chee Bin Mui Whye Kee. "An architecture for network centric operations in unconventional crisis : lessons learnt from Singapore's SARS experience /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Dec%5FTay.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Hanzlík, Radek. "Customer service on the Czech mobile telecommunication market. Comparative Analysis." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-201782.

Full text

Abstract:

The main goal of this thesis is to compare the quality of customer service between the Mobile Network Operators (MNOs) and Mobile Virtual Network Operators (MVNOs) on the Czech mobile telecommunication market. The mystery shopping method is used as the source of data for the comparative analysis.

APA, Harvard, Vancouver, ISO, and other styles

26

Driesslein, Jonathan Clarke. "Scalable mobile ad hoc network (MANET) to enhance situational awareness in distributed small unit operations." Thesis, Monterey, California: Naval Postgraduate School, 2015. http://hdl.handle.net/10945/45843.

Full text

Abstract:

Approved for public release; distribution is unlimited Platforms throughout the military and other government agencies (such as FEEMA and police departments) have become more networked; the last link in each network chain, however, has always been the individuals themselves. This structure requires a network that can process large amounts of data in order to provide the individuals with succinct and actionable information. Information, such as individual positions, weapons orientation, and friendly positions, serve to greatly enhance the situational awareness and improve the likelihood of mission success. The goal of this research is to use networking to improve the infantry’s situational awareness. The Robotic Operating System (ROS) is the foundation of a prototype network investigated in this thesis. It enables rapid prototyping of components and functionality through an open-source library with multi-language and multi-platform support. The network was constructed with software and hardware modules consisting of wearable sensors and various computational platforms. Future development will include linking the network to autonomous units and other assets with simplified controls. The deliverable is a mobile ad-hoc network (MANET) with hardware designed to be operational for infantry squads and software designed to deliver contextual situational awareness to all of its members. The data distribution is handled through a brokered publish and subscribe network implemented via ROS.

APA, Harvard, Vancouver, ISO, and other styles

27

Šabata, Ondřej. "Hodnocení efektivity prodejní sítě telekomunikačního operátora za použití modelů analýzy obalu dat." Master's thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-17430.

Full text

Abstract:

This master thesis deals with efficiency assessment of shop network of a leading Mobile Network Operator, by which it utilizes an innovative approach called Data Envelopment Analysis (DEA). The following three areas are in main focus of this thesis: advantages of DEA modelling compared to common approaches to Decision Making Units efficiency assessment and extensive summary of majority of DEA models, which are relevant for solving the given problem; followed by a comprehensive model of efficiency assessment of shop network of a Mobile Network Operator, which is unique to this thesis from both theoretical and practical standpoints; and last but not least a detailed analysis of the shop network including recommendations.

APA, Harvard, Vancouver, ISO, and other styles

28

Palmer, Robert, and Glen Wolf. "MOBILE OPERATIONS FACILITY IN SUPPORT OF THE X-33 EXTENDED TEST RANGE ALLIANCE." International Foundation for Telemetering, 1999. http://hdl.handle.net/10150/606826.

Full text

Abstract:

International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada NASA and the Air Force are increasing the number of hypersonic and access-to-space programs creating a growing requirement for flight test ranges over large regional areas. A principal challenge facing these extended test ranges is the ability to provide continuous vehicle communications by filling the gaps in coverage between fixed ground stations. Consequently, there is a need for mobile range systems that provide a multitude of communication services under varying circumstances. This paper discusses the functional design and systems capabilities, as well as the mission support criteria, concerning NASA’s Mobile Operations Facility (MOF). The MOF will be deployed to Dugway Proving Grounds (DPG), Utah, in support of the X-33 single-stage-to-orbit (SSTO) demonstrator.

APA, Harvard, Vancouver, ISO, and other styles

29

Venmani, Daniel Philip. "Multi-operator greedy routing based on open routers." Phd thesis, Institut National des Télécommunications, 2014. http://tel.archives-ouvertes.fr/tel-00997721.

Full text

Abstract:

Revolutionary mobile technologies, such as high-speed packet access 3G (HSPA+) and LTE, have significantly increased mobile data rate over the radio link. While most of the world looks at this revolution as a blessing to their day-to-day life, a little-known fact is that these improvements over the radio access link results in demanding tremendous improvements in bandwidth on the backhaul network. Having said this, today's Internet Service Providers (ISPs) and Mobile Network Operators (MNOs) are intemperately impacted as a result of this excessive smartphone usage. The operational costs (OPEX) associated with traditional backhaul methods are rising faster than the revenue generated by the new data services. Building a mobile backhaul network is very different from building a commercial data network. A mobile backhaul network requires (i) QoS-based traffic with strict requirements on delay and jitter (ii) high availability/reliability. While most ISPs and MNOs have promised advantages of redundancy and resilience to guarantee high availability, there is still the specter of failure in today's networks. The problems of network failures in today's networks can be quickly but clearly ascertained. The underlying observation is that ISPs and MNOs are still exposed to rapid fluctuations and/or unpredicted breakdowns in traffic; it goes without saying that even the largest operators can be affected. But what if, these operators could now put in place designs and mechanisms to improve network survivability to avoid such occurrences? What if mobile network operators can come up with low-cost backhaul solutions together with ensuring the required availability and reliability in the networks? With this problem statement in-hand, the overarching theme of this dissertation is within the following scopes: (i) to provide low-cost backhaul solutions; the motivation here being able to build networks without over-provisioning and then to bring-in new resources (link capacity/bandwidth) on occasions of unexpected traffic surges as well as on network failure conditions for particularly ensuring premium services (ii) to provide uninterrupted communications even at times of network failure conditions, but without redundancy. Here a slightly greater emphasis is laid on tackling the 'last-mile' link failures. The scope of this dissertation is therefore to propose, design and model novel network architectures for improving effective network survivability and network capacity, at the same time by eliminating network-wide redundancy, adopted within the context of mobile backhaul networks. Motivated by this, we study the problem of how to share the available resources of a backhaul network among its competitors, with whom a Service Level Agreement (SLA) has been concluded. Thus, we present a systematic study of our proposed solutions focusing on a variety of empirical resource sharing heuristics and optimization frameworks. With this background, our work extends towards a novel fault restoration framework which can cost-effectively provide protection and restoration for the operators, enabling them with a parameterized objective function to choose desired paths based on traffic patterns of their end-customers. We then illustrate the survivability of backhaul networks with reduced amount of physical redundancy, by effectively managing geographically distributed backhaul network equipments which belong to different MNOs using 'logically-centralized' physically-distributed controllers, while meeting strict constraints on network availability and reliability

APA, Harvard, Vancouver, ISO, and other styles

30

Corici, Marius Iulian [Verfasser], Thomas [Akademischer Betreuer] Magedanz, and Axel [Akademischer Betreuer] Kuepper. "Self-adaptable IP control in carrier grade mobile operator networks / Marius Iulian Corici. Gutachter: Axel Kuepper. Betreuer: Thomas Magedanz." Berlin : Technische Universität Berlin, 2014. http://d-nb.info/1067386068/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Ramos, José Pedro Guedes Simões. "Telecommunications infrastructure sharing in Mozambique." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13612.

Full text

Abstract:

Mestrado em Engenharia Eletrónica e Telecomunicações The mobile telecommunications market faces growing challenges throughout the world, especially in the emerging markets on the African continent. The increase of private investment in different areas combined with the need to provide swift, sustainable and efficient answers from an economic and financial perspective has become urgent not only for the desired growth of these markets, but also for their continued development. The market of mobile telecommunications in Mozambique, the country chosen for our study, presents specific challenges in the network coverage in remote and rural areas. In one of the poorest countries in the world, where mobile communications prevail over fixed-network connections, and considering the importance of continuing to attract investment in this sector, without neglecting the least attractive regions from a financial perspective, it is important to study and explore the different technological models which can be implemented. This dissertation identifies the main investment constraints behind the reduced mobile coverage in the least attractive regions in Mozambique and studies the applicability and sustainability of implementing the concept of Neutral Operator associated with infrastructure sharing as one of the solutions to be adopted. It is our purpose that this study may contribute to the development of the mobile telecommunications market in this emerging market and that the Neutral Operator Model may be adapted and improved as needed in order to meet other growth and development objectives for Mozambique. O mercado das telecomunicações móveis enfrenta desafios crescentes em todo o mundo, especialmente nos mercados emergentes do continente Africano. O aumento do investimento privado em diferentes sectores, associado à necessidade de fornecer respostas rápidas, sustentáveis e eficientes do ponto de vista económico-financeiro tornou-se premente não só para o desejado crescimento destes mercados, mas também para o seu continuado desenvolvimento. O mercado das telecomunicações móveis em Moçambique, país sobre o qual nos focamos neste estudo, apresenta desafios específicos no que respeita à cobertura de comunicações móveis nas áreas mais remotas e rurais. Num dos países mais pobres do mundo, onde a rede móvel prevalece sobre a rede fixa, e sendo importante continuar a atrair investimento neste sector, não descurando as áreas menos atrativas do ponto de vista financeiro, importa estudar e explorar os diferentes modelos tecnológicos que podem ser implementados. Esta dissertação identifica os principais constrangimentos que levam ao reduzido investimento na cobertura móvel nas áreas menos apetecíveis para investidores em Moçambique, estudando a aplicabilidade e sustentabilidade do conceito de Operador Neutro associado à partilha de infraestruturas como uma das soluções a adotar. Pretende-se que este trabalho contribua para o desenvolvimento da área das telecomunicações móveis neste mercado emergente e que esta proposta possa ser aperfeiçoada de modo a contribuir para outros objetivos de crescimento e desenvolvimento de Moçambique.

APA, Harvard, Vancouver, ISO, and other styles

32

Venmani, Daniel Philip. "Multi-operator greedy routing based on open routers." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0003.

Full text

Abstract:

Les évolutions technologies mobiles majeures, tels que les réseaux mobiles 3G, HSPA+ et LTE, ont augmenté de façon significative la capacité des données véhiculées sur liaison radio. Alors que les avantages de ces évolutions sont évidents à l’usage, un fait moins connu est que ces améliorations portant principalement sur l’accès radio nécessitent aussi des avancées technologiques dans le réseau de collecte (backhaul) pour supporter cette augmentation de bande passante. Les fournisseurs d’accès Internet (FAI) et les opérateurs de réseau mobile doivent relever un réel défi pour accompagner l’usage des smartphones. Les coûts opérationnels associés aux méthodes traditionnelles de backhaul augmentent plus vite que les revenus générés par les nouveaux services de données. Ceci est particulièrement vrai lorsque le réseau backhaul doit lui-même être construit sur des liens radio. Un tel réseau de backhaul mobile nécessite (i) une gestion de qualité de service (QoS) liée au trafic avec des exigences strictes en matière de délai et de gigue, (ii) une haute disponibilité / fiabilité. Alors que la plupart des FAI et des opérateurs de réseau mobile font état des avantages de mécanismes de redondance et de résilience pour garantir une haute disponibilité, force est de constater que les réseaux actuels sont encore exposés à des indisponibilités. Bien que les causes de ces indisponibilités soient claires, les fluctuations rapides et / ou des pannes imprévues du trafic continuent d’affecter les plus grands opérateurs. Mais ces opérateurs ne pourraient-ils pas mettre en place des modèles et des mécanismes pour améliorer la survie des réseaux pour éviter de telles situations ? Les opérateurs de réseaux mobiles peuvent-ils mettre en place ensemble des solutions à faible coût qui assureraient la disponibilité et la fiabilité des réseaux ? Compte tenu de ce constat, cette thèse vise à : (i) fournir des solutions de backhaul à faible coût ; l’objectif est de construire des réseaux sans fil en ajoutant de nouvelles ressources à la demande plutôt que par sur-dimensionnements, en réponse à un trafic inattendu surgit ou à une défaillance du réseau, afin d’assurer une qualité supérieure de certains services (ii) fournir des communications sans interruption, y compris en cas de défaillance du réseau, mais sans redondance. Un léger focus porte sur l’occurrence de ce problème sur le lien appelé «dernier kilomètre» (last mile). Cette thèse conçoit une nouvelle architecture de réseaux backhaul mobiles et propose une modélisation pour améliorer la survie et la capacité de ces réseaux de manière efficace, sans reposer sur des mécanismes coûteux de redondance passive. Avec ces motivations, nous étudions le problème de partage de ressources d'un réseau de backhaul entre opérateurs concurrents, pour lesquelles un accord de niveau de service (SLA) a été conclu. Ainsi, nous présentons une étude systématique de solutions proposées portant sur une variété d’heuristiques de partage empiriques et d'optimisation des ressources. Dans ce contexte, nous poursuivons par une étude sur un mécanisme de recouvrement après panne qui assure efficacement et à faible coût la protection et la restauration de ressources, permettant aux opérateurs via une fonction basée sur la programmation par contraintes de choisir et établir de nouveaux chemins en fonction des modèles de trafic des clients finaux. Nous illustrons la capacité de survie des réseaux backhaul disposant d’un faible degré de redondance matérielle, par la gestion efficace d’équipements de réseau de backhaul répartis géographiquement et appartenant aux différents opérateurs, en s’appuyant sur des contrôleurs logiquement centralisés mais physiquement distribués, en respectant des contraintes strictes sur la disponibilité et la fiabilité du réseau Revolutionary mobile technologies, such as high-speed packet access 3G (HSPA+) and LTE, have significantly increased mobile data rate over the radio link. While most of the world looks at this revolution as a blessing to their day-to-day life, a little-known fact is that these improvements over the radio access link results in demanding tremendous improvements in bandwidth on the backhaul network. Having said this, today’s Internet Service Providers (ISPs) and Mobile Network Operators (MNOs) are intemperately impacted as a result of this excessive smartphone usage. The operational costs (OPEX) associated with traditional backhaul methods are rising faster than the revenue generated by the new data services. Building a mobile backhaul network is very different from building a commercial data network. A mobile backhaul network requires (i) QoS-based traffic with strict requirements on delay and jitter (ii) high availability/reliability. While most ISPs and MNOs have promised advantages of redundancy and resilience to guarantee high availability, there is still the specter of failure in today’s networks. The problems of network failures in today’s networks can be quickly but clearly ascertained. The underlying observation is that ISPs and MNOs are still exposed to rapid fluctuations and/or unpredicted breakdowns in traffic; it goes without saying that even the largest operators can be affected. But what if, these operators could now put in place designs and mechanisms to improve network survivability to avoid such occurrences? What if mobile network operators can come up with low-cost backhaul solutions together with ensuring the required availability and reliability in the networks? With this problem statement in-hand, the overarching theme of this dissertation is within the following scopes: (i) to provide low-cost backhaul solutions; the motivation here being able to build networks without over-provisioning and then to bring-in new resources (link capacity/bandwidth) on occasions of unexpected traffic surges as well as on network failure conditions for particularly ensuring premium services (ii) to provide uninterrupted communications even at times of network failure conditions, but without redundancy. Here a slightly greater emphasis is laid on tackling the ‘last-mile’ link failures. The scope of this dissertation is therefore to propose, design and model novel network architectures for improving effective network survivability and network capacity, at the same time by eliminating network-wide redundancy, adopted within the context of mobile backhaul networks. Motivated by this, we study the problem of how to share the available resources of a backhaul network among its competitors, with whom a Service Level Agreement (SLA) has been concluded. Thus, we present a systematic study of our proposed solutions focusing on a variety of empirical resource sharing heuristics and optimization frameworks. With this background, our work extends towards a novel fault restoration framework which can cost-effectively provide protection and restoration for the operators, enabling them with a parameterized objective function to choose desired paths based on traffic patterns of their end-customers. We then illustrate the survivability of backhaul networks with reduced amount of physical redundancy, by effectively managing geographically distributed backhaul network equipments which belong to different MNOs using ‘logically-centralized’ physically-distributed controllers, while meeting strict constraints on network availability and reliability

APA, Harvard, Vancouver, ISO, and other styles

33

Krkoš, Radko. "Diagnostika mobilných sietí." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-375479.

Full text

Abstract:

The thesis deals with the topic of mobile network diagnostics, different methods applicable for this purpose and methodology for technical diagnostics and consequent error mitigation or mobile network optimisation. Service commonly offered by mobile networks and their quality of service requirements and analysis methods are described.

APA, Harvard, Vancouver, ISO, and other styles

34

Řehoř, František. "Zavedení Self-service BI u MVNO GoMobil." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-192486.

Full text

Abstract:

The main objectives of this work are determining Self-Service Business Intelligence as one of Business Intelligence approaches, description and characterization of Qlik Sense and finally development of particular solution using the above tool. In the first part thesis deals with the theoretical side of the approach, describes its advantages and disadvantages and users coming into contact with the respective technologies. Subsequently, thesis specifies requirements for Self-Service Business Intelligence and mentions different requirements and sizes of solutions in organizations. At the end recommendations for the implementation of the approach and technologies are mentioned. The second part is devoted to Qlik Sense platform, as one of the representatives based on the Self-Service approach. At first basic features, options and benefits are described. Then the development of solutions and principles of work with this tool are explained. Finally, architecture of enterprise server solution is described together with installation steps and basic configuration of a Qlik Sense site. The third part is focused on mobile virtual operator GoMobil, its current state, Business Intelligence needs and last but not least the requirements and development of solution using Qlik Sense platform.

APA, Harvard, Vancouver, ISO, and other styles

35

Smuts, Francois. "Estimating the effectiveness of a mobile phone network's deferred revenue calculated through the use of a business automation and support system." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6726.

Full text

Abstract:

Thesis (MComm (Logistics))--University of Stellenbosch, 2011. ENGLISH ABSTRACT: Mobile phone networks form an integral part of economic and social development globally. Mobile phones have become an everyday part of life and it is hard to imagine a competitive economy without the availability of mobile communications. Emerging markets benefit most from the implementation of mobile technology and growth trends are outperforming earlier predictions. The most popular and sustainable payment model used by mobile phone networks in emerging markets is the pre paid mechanism used for the distribution of airtime. This mechanism brings about unique challenges for networks in emerging markets. In this thesis the importance of the mobile phone network pre paid value channel is introduced through an analysis of pre paid revenue. A brief introduction is given to the systems and products that contribute to the functioning of the pre paid value channel. The revenue generation process is described with regards to the pre paid sector of the market and an in-depth explanation of the importance of deferred revenue is given, how it is recorded and what role it fulfils in the generation of revenue. The complexity of the network environment, both technical and operational makes the use of a business automation and support system (BSS) a necessary tool for effective execution of tasks and processes within the network environment. These systems record information from a wide spectrum of available technical network resources and use this information to automate the flow of network products. The use of such a system for the calculation of deferred revenue is suggested. Saaty‟s Analytical Hierarchy Process (AHP) algorithm and the Elimination and Choice Expressing Reality (ELECTRE) method are used to compare the newly proposed method for the calculation of deferred revenue using a BSS. Using Saaty's algorithm to estimate the effectiveness of deferred revenue as reported through the use of a BSS yields favourable results for the proposed method. This helps to bridge the gap in the poorly researched mobile telecommunications industry. ELECTRE is used to substantiate the findings of the model using AHP and meaningful tests are done to motivate correctness and accuracy of the results obtained throughout. Most importantly, the findings were shared with academic and industry experts, adding meaningful resemblance to the goals set out to achieve. AFRIKAANSE OPSOMMING: Mobiele foon netwerke is wêreldwyd 'n onlosmaakbare deel van ekonomiese en sosiale ontwikkeling. Mobiele fone is deel van ons alledaagse lewe en dit is moeilik om 'n kompeterende ekonomie te bedink sonder die beskikbaarheid van mobiele kommunikasie. Ontluikende markte trek die meeste voordeel uit die implementering van mobiele tegnologie en groeitendense vertoon beter as wat vroeër voorspel is. Die mees gewilde en volhoubare betaalmetode wat deur mobiele foon netwerke in ontluikende markte gebruik word, is die voorafbetalingsmeganisme wat vir die verspreiding van lugtyd gebruik word. Hierdie meganisme bring unieke uitdagings vorendag in ontluikende markte. Die tesis beskryf die belangrikheid van die mobiele foon netwerk voorafbetalingswaardekanaal deur 'n analise te maak van vooruitbetalingsinkomste. 'n Kort oorsig oor die sisteme en produkte wat bydra tot die funksionering van die vooruitbetalingswaardekanaal word verskaf. 'n Beskrywing van die inkomste-genereringsproses vir die vooruitbetaling-sektor van die mark word verskaf en 'n in-diepte verduideliking van die belangrikheid van uitgestelde inkomste, hoe dit vasgelê word en watter rol dit speel in die generering van inkomste word verduidelik. Die kompleksiteit van die netwerkomgewing, beide op 'n tegniese en operasionele vlak, maak die gebruik van 'n besigheidsoutomatisering en ondersteuningsisteem (BSS) 'n noodsaaklike instrument vir die effektiewe uitvoer van take en prosesse binne die netwerkomgewing. Hierdie sisteme stoor informasie vanuit 'n wye spektrum van beskikbare tegniese netwerkbronne en gebruik die inligting om die vloei van netwerkprodukte te outomatiseer. Die gebruik van sodanige sisteem word voorgestel vir die berekening van uitgestelde inkomste. Saaty se Analitiese Hierargie Proses-algoritme (AHP) en die Eliminasie en Realiteit-Deur-Keuse Uitdrukkingsmetode (ELECTRE) word gebruik vir die vergelyking van die voorgestelde metode vir die berekening van uitgestelde inkomste deur middel van 'n BSS. Die gebruik van Saaty se algoritme om die effektiwiteit te bereken van uitgestelde inkomste soos gemeld deur die gebruik van 'n BSS, lewer gunstige resultate vir die voorgestelde metode. Dit vul 'n leemte in die swak nagevorsde mobiele telekommunikasie industrie. ELECTRE word gebruik om die bevindinge van die AHP-model te substansieer en betekenisvolle toetse word deurentyd gedoen om die korrektheid en akkuraatheid van die resultate te motiveer. Die belangrikste aspek van die navorsing is dat die bevindinge gedeel is met kenners binne die akademie sowel as die industrie, wat nou aansluit by die doelstellings wat aanvanklik beoog is.

APA, Harvard, Vancouver, ISO, and other styles

36

Clet, Pierre-Emmanuel. "Contributions to the optimization of TFHE's functional bootstrapping for the evaluation of non-polynomial operators." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASG001.

Full text

Abstract:

Avec la création et l'utilisation incessantes de données numériques, ces dernières années ont vu naître des inquiétudes au sujet des données sensibles et personnelles. De nouvelles lois, telle que le Règlement Général sur la Protection des Données, ont alors vu le jour pour assurer le respect de la confidentialité des données des individus. Cependant, l'externalisation grandissante du traitement des données notamment avec l'apparition du "machine learning as a service" soulève la question suivante: est-il possible de laisser un tiers traiter nos données tout en les gardant confidentielles ?Une solution à ce problème vient des chiffrements dits FHE, de l'anglais Fully Homomorphic Encryption. À l'aide de tels cryptosystèmes, des opérations peuvent être appliquées directement sur des messages chiffrés, sans jamais dévoiler ni le message d'origine, ni le message résultant des opérations. Ce corpus de techniques permet donc en théorie d'externaliser des calculs sans compromettre la confidentialité des données utilisées lors de ces calculs.Cela pourrait ouvrir la voie à de nombreuses applications telle que la possibilité d'ouvrir des services de diagnostic médicaux en ligne offrant une totale confidentialité des données médicales des patients.Malgré cette promesse alléchante, l'important coût computationnel des opérateurs FHE en limite la portée pratique. En effet, un calcul sur données chiffrées peut prendre plusieurs millions de fois plus de temps que son équivalent sur des données non chiffrées. Cela rend inenvisageable l'évaluation d'algorithme trop complexes sur des données chiffrées. Par ailleurs, le surcoût en mémoire apporté par les chiffrements FHE s'élève à un facteur multiplicatif de plusieurs milliers. Ce surcoût peut donc s'avérer rédhibitoire pour des applications sur des systèmes à basse mémoire tels que des systèmes embarqués.Dans cette thèse nous développons une nouvelle primitive pour le calcul sur données chiffrées basée sur l'opération de "bootstrapping fonctionnel" supportée par le cryptosystème TFHE. Cette primitive permet un gain en latence et en mémoire par rapport aux autres techniques comparables de l'état de l'art. Aussi, nous introduisons une seconde primitive permettant d'effectuer des calculs sous forme de circuit logique permettant un gain significatif de vitesse de calcul par rapport à l'état de l'art. Cette approche pourra notamment être intéressante auprès des concepteurs de compilateurs homomorphes comme alternative à l'utilisation de chiffrement binaire.Ces deux outils se veulent suffisamment généraux pour être applicables à un large panel de cas d'utilisation et ne sont donc pas limités aux cas d'usage présentés dans ce manuscrit.En guise d'illustration, nous appliquons nos opérateurs au calcul confidentiel de réseaux de neurones externalisés, montrant ainsi la possibilité d'évaluer des réseaux de neurones avec une relativement faible latence, même dans le cas de réseau de neurones de type récurrents.Enfin, nous appliquons nos opérateurs à une technique dite de transchiffrement permettant de s'affranchir des considérations de limitation en mémoire dûes à la grande taille des chiffrés FHE côté client In recent years, concerns about sensitive and personal data arose due to the increasing creation and use of digital data. New laws, such as the General Data Protection Regulation, have been introduced to ensure that the confidentiality of individuals' data is respected. However, the growing outsourcing of data processing, particularly with the emergence of "machine learning as a service", raises the following question: is it possible to let a third party process our data while keeping it confidential?One solution to this problem comes in the form of Fully Homomorphic Encryption, or FHE for short. Using FHE cryptosystems, operations can be applied directly to encrypted messages, without ever revealing either the original message or the message resulting from the operations. In theory, this collection of techniques makes it possible to externalise calculations without compromising on the confidentiality of the data used during these calculations.This could pave the way for numerous applications, such as the possibility of offering online medical diagnostic services while ensuring the total confidentiality of the patients' medical data.Despite this promise, the high computational cost of FHE operators limits their practical scope. A calculation on encrypted data can take several million times longer than its equivalent on non-encrypted data. This makes it unthinkable to evaluate highly time consuming algorithms on encrypted data. In addition, the memory cost of FHE encryption is several thousand times greater than unencrypted data. This overhead may prove to be prohibitive for applications on low-memory systems such as embedded systems.In this thesis we develop a new primitive for computing on encrypted data based on the "functional bootstrapping" operation supported by the TFHE cryptosystem. This primitive allows a gain in latency and memory compared to other comparable techniques in the state of the art. We are also introducing a second primitive enabling calculations to be performed in the form of a logic circuit, providing a significant gain in calculation speed compared with the state of the art. This approach could be of particular interest to designers of homomorphic compilers as an alternative to the use of binary encryption.These two tools are intended to be sufficiently generic to be applicable to a wide range of use cases and are therefore not limited to the use cases presented in this manuscript.As an illustration, we apply our operators to the confidential computation of outsourced neural networks, thus demonstrating the possibility of evaluating neural networks with relatively low latency, even in the case of recurrent neural networks.Finally, we apply our operators to a technique known as transciphering, making it possible to overcome memory limitation on the client side coming with the large size of FHE ciphertexts

APA, Harvard, Vancouver, ISO, and other styles

37

Broo, David. "Mobiltelefoni - en djungel för konsumenterna : Vilka faktorer påverkar valet av mobiloperatör?" Thesis, Linnéuniversitetet, Ekonomihögskolan, ELNU, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-13357.

Full text

Abstract:

Sammanfattning Ämnesfördjupande arbete inom marknadsföring, Ekonomihögskolan vid Linnéuniversitetet Civilekonomprogrammet, 4FE03E, VT 2011. Författare: David Broo Handledare: Sarah Philipson Titel: Mobiltelefoni – en djungel för konsumenterna. Vilka faktorer påverkar deras val av mobiloperatör? Syfte: Uppsatsens syfte är att undersöka vilka faktorer som påverkar de svenska konsumenternas val av mobiloperatör. Ett delsyfte är att undersöka vad som påverkar deras lojalitet till sin operatör. Frågeställning: Vilka faktorer påverkar de svenska konsumenternas val av mobiloperatör? Metod: Det teoretiska materialet består av litteratur och vetenskapliga artiklar. Den empiriska delen genomfördes med hjälp av två fokusgrupper med totalt 20 studenter från Linnéuniversitetet i Växjö samt genom diverse hemsidor, branschpress och facktidningar. Slutsats: Trygghet, täckning och pris är viktiga faktorer i konsumenternas val av operatör. Det verkar dock som om operatörerna inte differentierar sig i tillräcklig utsträckning. Etiska värden, frihet och flexibilitet är faktorer som skulle kunna bidra till en tydligare differentiering av operatörernas varumärken. I dagsläget är konsumenterna lojala till sin operatör då de inte anser det vara lönt att byta. De uppfattar istället branschen som "en djungel" och är därför lojala till sin operatör. Nyckelord: Varumärke, konsumenter, lojalitet, mobiloperatör, konsumentbeteende Abstract This is a master thesis within the field of marketing written at the Economic institution on the Linnaeus University in Växjö, 4FE03E, spring 2011. Author: David Broo Tutor: Sarah Philipson Title: Mobile telephony – a jungle for the consumers. Which factors affect the choice of mobile network operator? Purpose: Purpose of this essay is to explore which factors that affect the Swedish consumer’s choice of mobile network operator. A part of the purpose is also to explore which factors that affect the loyalty to their mobile network operator. Research question: Which factors affect the Swedish consumer’s choice of mobile network operator? Method: The theoretical material consists of literature and scientific articles. The empirical part was conducted by four focus groups with a total of 20 students from Linnaeus University in Växjö, and from electronic sources, various trade press and journals. Conclusion: Safety, coverage and price are key factors in consumer’s selection of mobile network operator. It seems that the mobile network operators do not differentiate themselves sufficiently. Ethical values, freedom and flexibility are factors that could contribute to a clearer differentiation of the brands of the mobile network operators. Currently consumers are loyal to their mobile network operator because of they do not consider it worthwhile to change. They are instead seeing the industry as "a jungle" and are therefore loyal. Keywords: Brand name, consumer’s, loyalty, mobile network operator, consumer behavior

APA, Harvard, Vancouver, ISO, and other styles

38

Lersteau, Charly. "Optimisation de réseaux de capteurs sans ﬁl pour le suivi de cibles mobiles". Thesis, Lorient, 2016. http://www.theses.fr/2016LORIS412/document.

Full text

Abstract:

Les réseaux de capteurs sans fil suscitent une attention croissante depuis quelques années, tant les applications sont nombreuses, incluant notamment le suivi de véhicules ou la surveillance de champs de bataille. Un ensemble de capteurs disséminé aléatoirement a pour but de surveiller des cibles se déplaçant dans une région donnée. Chaque capteur a une durée de vie limitée et deux états : actif ou inactif. Un capteur actif peut surveiller des cibles dans son rayon de portée, au prix d'une consommation d'énergie. Dans cette thèse, les problèmes étudiés consistent à déterminer un ordonnancement optimal d'activités de surveillance, afin de couvrir toutes les cibles à tout instant de la mission. Nous abordons en premier lieu un problème d'ordonnancement robuste. Une cible dont on connaît la trajectoire spatiale avec précision est sujette à incertitude temporelle. Cette situation est rencontrée lorsqu'un avion vole dans un couloir aérien, qu'un train circule sur une voie ferrée, ou que de tout autre véhicule suit un itinéraire pré-déterminé. L'objectif est de calculer un ordonnancement d'activités capable de résister au plus grand écart par rapport aux dates prévisionnelles de passage de la cible. Ce premier problème est résolu à l'aide d'un algorithme exact pseudo-polynomial, reposant sur une dichotomie. En second lieu, nous étudions le problème visant à préserver la capacité de surveillance du réseau de capteurs dans un contexte multi-missions. Les cibles sont maintenant sujettes à une incertitude spatiale, c'est-à-dire susceptibles de se trouver à une distance inférieure à un seuil delta de leur position prévisionnelle. Ce second problème est résolu à l’aide d’un algorithme exact basé sur la génération de colonnes, et accéléré par une métaheuristique. Les méthodes de résolution proposées ont en commun une étape préliminaire, appelée discrétisation, qui conduit à reformuler les problèmes originaux comme des problèmes d'ordonnancement d'activités de surveillance. L'espace de surveillance est découpé en faces, ensembles de points couverts par un même sous-ensemble de capteurs. Le calcul des durées de séjour des cibles dans chaque face permet de découper la durée de la mission en fenêtres de temps, et d'envisager le problème de couverture de cibles mobiles comme une séquence de problèmes de couverture de cibles immobiles. Les algorithmes proposés pour aborder ces problèmes sont testés sur de nombreuses instances, et leurs résultats sont analysés. De nombreuses perspectives ouvertes par ces travaux sont également présentées Wireless sensor networks have received a particular attention during the last years, involving many applications, such as vehicle tracking or battlefield monitoring. A set of sensors is randomly dispatched in a region in order to monitor moving targets. Each sensor has a limited battery lifetime and two states: active or inactive. An active sensor is able to monitor targets inside its sensing radius, which consumes energy. In this thesis, the studied problems consist in deciding an optimal schedule of sensing activities, in order to cover all the targets at any instant of the mission. First, we study a robust scheduling problem. A target such that the spatial trajectory is exactly known is subject to temporal uncertainties. This context is met for a plane flying in an airline route, a train running on a railway, or any vehicle following a predetermined path. The objective is to compute a schedule of activities able to resist to the largest uncertainties This first problem is solved using an exact pseudo-polynomial algorithm, relying on a dichotomy. Second, we study a problem aiming at preserving enough sensor network capacity in order to perform further missions. For this problem, the targets are subject to spatial uncertainties, i.e. their actual position may be at a distance delta of their expected position. This second problem is solved using an exact algorithm based on column generation, accelerated by a metaheuristic. All the proposed methods have a common phase, called discretization, that leads to reformulate the original problems as activity scheduling problems. The monitored area is split into faces, that are defined as sets of points covered by the same set of sensors. Computing the stay duration of targets inside each face leads to split the mission duration into time windows, so the moving target tracking problem can be seen as a sequence of static target tracking problems. The proposed algorithms are tested on many instances, and the analysis of the results is provided. Numerous open perspectives of this work are also given

APA, Harvard, Vancouver, ISO, and other styles

39

Ranjbar, Gigasari Roza. "Model Predictive Controller for large-scale systems - Application to water networks." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Lille Douai, 2024. http://www.theses.fr/2024MTLD0002.

Full text

Abstract:

Cette thèse aborde le défi de l’optimisation de la gestion des ressources en eau au sein des canaux. Il s’agit d’une tâche particulièrement complexe en raison de leur échelle étendue et de la nature diverse de leurs composants, mais également de leurs dynamiques complexes caractérisées par des retards importants et parfois des pentes nulles. En ce qui concerne les réseaux de voies navigables, l’objectif principal est de mettre en œuvre des techniques issues de la théorie du Contrôle afin d’assurer la navigabilité du réseau, garantissant le respect des niveaux d’eau pour la navigation. Plus précisément, les niveaux d’eau doivent demeurer dans une plage prédéfinie autour d’un point de consigne. D’autres objectifs visent en la réduction des coûts opérationnels et l’amélioration de la durabilité des équipements. A cet égard, une alternative dans la gestion de tels réseaux est de remplacer les capteurs le long des canaux par un robot mobile qui effectue les mesures requises en se déplaçant, limitant l’ensemble des tâches de déploiement et de maintenance des capteurs et des systèmes de transmission de l’information. Pour parvenir à une gestion efficiente, il est impératif de garantir un contrôle efficace des structures hydrauliques telles que les vannes, les pompes et les écluses tout en limitant leur utilisation. A cette fin, un algorithme de contrôle est introduit, basé sur un modèle existant dérivé des équations de Saint-Venant. Le modèle simplifié offre une facilité d’intégration des informations actuelles et retardées du système dynamique en simplifiant sa complexité originale. L’utilisation de ce modèle nécessite cependant certaines extensions aux outils standards de contrôle et d’estimation d’état standard. Des méthodes de contrôle prédictif, de type MPC, et des méthodes d’estimation de l’état du système, de type MHE, sont adaptées à ce modèle. Elles permettent de considérer les contraintes physiques et opérationnelles des canaux contrôlés. Le MPC centralisé offre une résilience grâce à son couplage avec la technique MHE. Sa nature déterministe limite cependant sa capacité à aborder systématiquement les incertitudes. Pour relever efficacement ces incertitudes, la mise en œuvre du MPC stochastique (SMPC) a ensuite été proposée. Le SMPC intègre des descriptions probabilistes dans la conception du contrôle, offrant une approche tenant compte des incertitudes. Dans ce contexte d’études, le SMPC est interconnecté avec un robot mobile dont l’usage vise à limiter le nombre de capteurs répartis le long du canal. Par conséquent, une partie de cette thèse se concentre sur la conception du SMPC en intégrant un robot mobile. Cette approche a été appliquée à un canal de test ASCE pour en évaluer l’efficacité. Compte tenu de la nature étendu et de la complexité des interactions des canaux avec leur environnement, une conception d’un jumeau numérique a été entreprise avec pour objectifs de répondre aux besoins d’outils d’analyse avancée de leur gestion. En exploitant les capacités des jumeaux numériques, nous avons cherché à améliorer notre compréhension des dynamiques des canaux, en considérant des scénarios passés, mais également à projeter les avantages de nouvelles stratégies de gestion et de contrôle. Cette évaluation vise à combler le fossé entre la théorie et la mise en œuvre pratique, offrant un moyen tangible de rejouer les événements passés, de tester diverses approches de gestion et, finalement, de proposer aux gestionnaires des outils et des critères conduisant à une gestion efficace des réseaux hydrographiques. Les méthodologies présentées dans cette thèse sont appliquées à un cas réel, un canal situé dans la région des Hauts de France, avec l’objectif de tester et de valider leur efficacité dans un contexte réel This thesis addresses the challenge of optimizing the management of canals, a complex task due to their extensive scale and distinctive attributes, including intricate dynamics, considerable time delays, and minimal bottom slopes. Specifically, the central goal is to ensure the navigability of the network, which involves maintaining safe water levels for vessel travel, through control theory. More precisely, the water levels must remain within a predefined range around a setpoint. Additionally, typical aims encompass reducing operational costs and enhancing the equipment’s life expectancy. In this regard, another objective in the management of such networks is replacing the possible sensors across canals by applying a moving robot to take the required measurements. To accomplish effective management, it becomes imperative to ensure efficient control over hydraulic structures such as gates, pumps, and locks. To this end, a control algorithm is introduced based on an existing model derived from the Saint-Venant equations. The modeling approach simplified the original complex description providing adaptability and facilitating the systematic integration of both current and delayed information. However, the resulting model formulation falls within the category of delayed descriptor systems, necessitating extensions to standard control and state estimation tools. Model predictive control and moving horizon estimation methods can be readily tailored for this formulation, while also adapting physical and operational constraints seamlessly. Given the extensive nature of canals, an evaluation of the digital twin was untaken to address the critical need for advanced tools in the management of such networks. By harnessing the capabilities of digital twins, we aimed to enhance our understanding of canal dynamics, past scenarios, and management strategies. This evaluation sought to bridge the gap between theory and practical implementation, offering a tangible means to playback past events, test diverse management approaches, and ultimately equip decision-makers with robust criteria for informed and effective network management.The methodologies presented above are applied to a practical case study, a canal in the northern region of France. The objective is to validate the efficacy of these approaches in a real-world context.While centralized MPC provides resilience through its receding-horizon approach, its deterministic nature limits its ability to systematically address uncertainties. To effectively tackle these system uncertainties, the implementation of Stochastic MPC (SMPC) has been adopted. SMPC integrates probabilistic descriptions into control design, offering a methodical approach to accommodating uncertainties. In this context, the application of SMPC is interconnected with a mobile robot aimed at replacing existing sensors along the canal to capture measurements. Consequently, a part of this thesis focuses on the design of SMPC in conjunction with a mobile robot. This approach has been applied to an ASCE Test canal to evaluate its effectiveness

APA, Harvard, Vancouver, ISO, and other styles

40

Hussaini, Abubakar S. "Energy efficient radio frequency system design for mobile WiMax applications. Modelling, optimisation and measurement of radio frequency power amplifier covering WiMax bandwidth based on the combination of class AB, class B, and C operations." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5749.

Full text

Abstract:

In today´s digital world, information and communication technology accounts for 3% and 2% of the global power consumption and CO2 emissions respectively. This alarming figure is on an upward trend, as future telecommunications systems and handsets will become even more power hungry since new services with higher bandwidth requirements emerge as part of the so called ¿future internet¿ paradigm. In addition, the mobile handset industry is tightly coupled to the consumer need for more sophisticated handsets with greater battery lifetime. If we cannot make any significant step to reducing the energy gap between the power hungry requirements of future handsets, and what battery technology can deliver, then market penetration for 4G handsets can be at risk. Therefore, energy conservation must be a design objective at the forefront of any system design from the network layer, to the physical and the microelectronic counterparts. In fact, the energy distribution of a handset device is dominated by the energy consumption of the RF hardware, and in particular the power amplifier design. Power amplifier design is a traditional topic that addresses the design challenge of how to obtain a trade-off between linearity and efficiency in order to avoid the introduction of signal distortion, whilst making best use of the available power resources for amplification. However, the present work goes beyond this by investigating a new line of amplifiers that address the green initiatives, namely green power amplifiers. This research work explores how to use the Doherty technique to promote efficiency enhancement and thus energy saving. Five different topologies of RF power amplifiers have been designed with custom-made signal splitters. The design core of the Doherty technique is based on the combination of a class B, class AB and a class C power amplifier working in synergy; which includes 90-degree 2-way power splitter at the input, quarter wavelength transformer at the output, and a new output power combiner. The frequency range for the amplifiers was designed to operate in the 3.4 - 3.6 GHz frequency band of Europe mobile WiMAX. The experimental results show that 30dBm output power can be achieved with 67% power added efficiency (PAE) for the user terminal, and 45dBm with 66% power added efficiency (PAE) for base stations which marks a 14% and 11% respective improvement over current stateof- the-art, while meeting the power output requirements for mobile WiMAX applications.

APA, Harvard, Vancouver, ISO, and other styles

41

Hussaini, Abubakar Sadiq. "Energy efficient radio frequency system design for mobile WiMax applications : modelling, optimisation and measurement of radio frequency power amplifier covering WiMax bandwidth based on the combination of class AB, class B, and C operations." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5749.

Full text

Abstract:

In today's digital world, information and communication technology accounts for 3% and 2% of the global power consumption and CO2 emissions respectively. This alarming figure is on an upward trend, as future telecommunications systems and handsets will become even more power hungry since new services with higher bandwidth requirements emerge as part of the so called 'future internet' paradigm. In addition, the mobile handset industry is tightly coupled to the consumer need for more sophisticated handsets with greater battery lifetime. If we cannot make any significant step to reducing the energy gap between the power hungry requirements of future handsets, and what battery technology can deliver, then market penetration for 4G handsets can be at risk. Therefore, energy conservation must be a design objective at the forefront of any system design from the network layer, to the physical and the microelectronic counterparts. In fact, the energy distribution of a handset device is dominated by the energy consumption of the RF hardware, and in particular the power amplifier design. Power amplifier design is a traditional topic that addresses the design challenge of how to obtain a trade-off between linearity and efficiency in order to avoid the introduction of signal distortion, whilst making best use of the available power resources for amplification. However, the present work goes beyond this by investigating a new line of amplifiers that address the green initiatives, namely green power amplifiers. This research work explores how to use the Doherty technique to promote efficiency enhancement and thus energy saving. Five different topologies of RF power amplifiers have been designed with custom-made signal splitters. The design core of the Doherty technique is based on the combination of a class B, class AB and a class C power amplifier working in synergy; which includes 90-degree 2-way power splitter at the input, quarter wavelength transformer at the output, and a new output power combiner. The frequency range for the amplifiers was designed to operate in the 3.4 - 3.6 GHz frequency band of Europe mobile WiMAX. The experimental results show that 30dBm output power can be achieved with 67% power added efficiency (PAE) for the user terminal, and 45dBm with 66% power added efficiency (PAE) for base stations which marks a 14% and 11% respective improvement over current stateof- the-art, while meeting the power output requirements for mobile WiMAX applications.

APA, Harvard, Vancouver, ISO, and other styles

42

Patriksson, Andreas. "Net Neutrality - Do We Care? : A study regarding Swedish consumers' point-of-view upon Net Neutrality." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-204467.

Full text

Abstract:

Net Neutrality implicates that all data being transmitted online is treated equal by Internet Service Providers. In 2016, the public debate regarding Net Neutrality in Sweden started growing as two major Mobile Network Operators were investigated by the Swedish Post and Telecom Authority for violation of European Union Net Neutrality regulations. Several studies have been conducted regarding Net Neutrality, most of them written in a legal, financial or technological perspective. This study takes another direction, aimed at understanding the consumer’s point of view regarding Net Neutrality. This study investigates whether or not consumers are aware of the subject and if so, how they value it. To measure this, an online survey was constructed, containing a total of 12 questions and statements. 77 people participated in the survey and out of these, 10 people participated in qualitative follow-up interviews. The interviews were semi-structured and individually designed according to each participant’s answers in the survey. This was done in order to gain a deeper understanding of the consumer’s reasoning while answering the survey. The results show that consumers lack knowledge regarding Net Neutrality. A major part of the consumers had not heard of the term or did not know the meaning of it, making it hard to determine whether or not the consumers value NN. However, when given a more concrete example of the implications of Internet Traffic Management from ISPs, the participants had a better understanding of what kind of implications NN could have on their Internet usage. They valued the implications of Net Neutrality, even though they did not know the theory of the term itself. The study also revealed that consumers have a big confidence in National Regulatory Authorities when it comes to looking after the openness of the Internet. Therefore, it is likely that National Regulatory Authorities must inform and educate consumers in the matter of Net Neutrality for them to value it and see its long-term implications. Nätneutralitet innebär kortfattat att all data som skickas över Internet ska behandlas likvärdigt utav Internetleverantörer (ISP). Under 2016 växte debatten kring nätneutralitet i Sverige då två stycken mobiloperatörer utreddes utav Post- och Telestyrelsen. Båda dessa mobiloperatörer lanserade kampanjer till sina kunder som ansågs strida mot EU:s förordning 2015/2120 rörande nätneutralitet. Ett antal studier har redan gjorts på ämnet nätneutralitet, dock har de flesta haft en infallsvinkel där man tittat på juridiska, finansiella eller tekniska perspektiv. Den här studien har en annan infallsvinkel och riktar sig istället mot konsumenters syn på nätneutralitet. Den ämnar undersöka huruvida konsumenter känner till begreppet nätneutralitet och om de gör det, hur värderar de konceptet? För att undersöka detta konstruerades en online-enkät, innehållandes 12 frågor. 77 personer deltog i enkäten och utav dessa så deltog 10 personer i uppföljande, kvalitativa intervjuer. Intervjuerna var semi-strukturerade och individuella med frågor baserade på individens svar i enkäten. Dessa intervjuer var till för att ge en fördjupad förståelse av konsumenternas syn på nätneutralitet och deras resonemang kring svaren under enkäten. Resultaten visar att konsumenter, deltagande i den här studien, har låg kunskap kring nätneutralitet. Majoriteten utav deltagarna hade inte hört termen eller kände inte till dess mening, vilket gjorde det svårt att dra några slutsatser kring huruvida konsumenterna värderar konceptet. Men när konsumenterna fick ett mer konkret exempel på hur Internetleverantörers datahantering påverkar kundernas Internetanvändande så tycktes konsumenterna förstå vilka implikationer nätneutralitet kan ha på deras eget Internetanvändande. De tycktes således värdera innebörden av nätneutralitet, även om de inte förstod teorin kring konceptet. Studien påvisade också att konsumenter har en stor tilltro till vederbörande myndighet, Post- och Telestyrelsen här i Sverige, när det gäller att se efter Internets öppenhet och mångfald. Det är därför troligt att Post- och Telestyrelsen kommer att behöva informera och utbilda konsumenter rörande nätneutralitet för att få konsumenter att se värdet av och de långsiktiga implikationerna utav det.

APA, Harvard, Vancouver, ISO, and other styles

43

HAN, CHEN-HUA, and 韓鎮華. "The Research on the Comparison of the Key Success Factors of Mobile Network Operators and Mobile Virtual Network Operators in Mobile Communication Industry." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/6v7ac9.

Full text

Abstract:

博士 朝陽科技大學 企業管理系台灣產業策略發展博士班 106 This study is aimed at exploring the key factors of successful management for physical and virtual network forms of mobile communication industry and comparing their differences. First of all, through the collection of secondary data, the factors influencing the business strategy of mobile communication industry are extracted from the collected literature; and in-depth interview of case studies as the basis for revising key success factors for this study, Mobile Network Operator, MNO and Mobile Virtual Network Operator, MVNO are designed to be reference indicators of key success factors. According to their nature, reference indicators are categorized to six major dimensions: 1. market opportunities, 2. policy act, 3. marketing channel, 4. financial management, 5. enterprise integration, 6. product value. Take business management cadres as research subject to conduct questionnaires and then adopt GM(0,N) model for weight analysis. As the result shown, among key success factors of MNO, “getting up with the latest status of competitors” is most valued, followed by “prompt reaction to competitors’ strategic activities”, thirdly “resources integration capabilities”, fourthly “clarity of government policies”, fifthly “grasping the development of technology” and the sixth is “timing of the launch of service products” and “fair and rational regulatory orders.” As for key success factors of MVNO, “the integrity of regulatory orders” is most valued, followed by “applicability of cross-industry regulations”, thirdly “clarity of government policies”, fourthly “launching the service products leading competitors”, fifthly “prompt reaction to competitors’ strategic activities” and the sixth is “grasping the change of customers need.” To explore the differences of key success factors between MNO and MVNO, it is mainly based on the different business modes between them. What MVNO management needs is flexibility, while MNO management requires economies of scale. Customer resources they pursued are not identical. Finally, this study also analyzes the relationship between success factors in the mobile communication industry and expects that the result will help the mobile communication operators to conduct more effective integration and planning, expand the management performance of business entity and improve operational efficiency to achieve the purpose of sustainable operation.

APA, Harvard, Vancouver, ISO, and other styles

44

Radebe, Jack. "Strategies leading to the success of mobile network operators : a comparative study of mobile network operators in the UK and SA." Thesis, 2014. http://hdl.handle.net/10210/11458.

Full text

Abstract:

M.B.A. The first mobile cellular telephone was established In St. louis (Missouri. USA) in 1946. In a few years time Europe followed with a similar service. These systems were based on technology developed during the World War 2 (Vodacom Corporate Profile:1999/2000:1). Between 1950 and 1960, cellular radio evolved to become automatic and Its costs dropped due to the Introduction of transistor technology. During the 1970's large scale integration and development of micro-processors enabled more complex systems development (Vodacom Corporate Profile :1999/2000:1 ). In 1988 the European Telecommunications Standard Institute (ETSI) was created. This Institute enabled network operators and telecommunications equipment manufacturers to become Involved In the specification of Global System for Mobile Communications (GSM) (Vodacom Corporate Profile :199~/2000:1 ). The GSM standard of communication was launched In Europe in 1992. This standard Is widelyused In European and African countries...

APA, Harvard, Vancouver, ISO, and other styles

45

Lin, Ya_Hui, and 林雅惠. "Legal Regulation Aanlysis on Mobile Virtual Network Operators (MVNO)." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/04010487632365092945.

Full text

Abstract:

碩士 世新大學 法律學研究所(含碩專班) 92 Nowadays you no longer have to be a telecom-related company to sell mobile service. MVNOs are organization which use part of the MNOs’ network in order to provide services as well as provide mobile telephony services to its customers but don’t have an allocation of spectrum…. This thesis contributes to a better understanding of the complex environment created by the new virtual mobile network operators and existing operators. Part II describes the MVNO, including its concept and effects towards the whole mobile market. Further regulation and legal issues in England, Singapore, Hong Kong and Japan will be presented in Part III. Then the regulatory issues of spectrum allocation, numbering and regulatory framework of telecommunications business in Taiwan will be analyzed and weighed gains and losses in Part IV. Conclusion and discussion finalized the paper in Part V.

APA, Harvard, Vancouver, ISO, and other styles

46

Su, Hsu-Chi, and 蘇旭祺. "Micro Operator Coordination of Licensed Assisted Access among Multiple Mobile Network Operators in Indoor Environment." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/745kgf.

Full text

Abstract:

碩士 國立臺灣大學 電機工程學研究所 106 Licensed assisted access (LAA) is the new technology of radio access network (RAN) in 3rd generation partnership project (3GPP) release 13. In addition to accessing licensed band, LAA can also access unlicensed band to increase higher throughput through carrier aggregation. In fact, the demand for spectrum will obviously increase in the future because of 5th generation mobile networks (5G) system such as virtual reality (VR) or the internet of things (IoT). Besides, the phenomenon where people stay in-doors about 80% of the day is another reason. Therefore, combining licensed band and unlicensed band is one of the important ways to satisfy the demand in indoor environ-ment. If every mobile network operator (MNO) wants to fast and widely build high per-formance 5G RAN in indoor, the space will be wasted for same purposes and the oper-ator expense will be expensive. Thus, the concept of micro operator (μO) is proposed. μO will negotiate with the manager of area and build RAN. Then, MNOs can provide services to its subscribers through renting RAN from μO. After that, not only MNOs can reduce its capital expenditure (CAPEX) and operator expense (OPEX) but also μO can get profit from this market. In fact, there is some research about coordination of RAN and spectrum among multiple MNOs by coordinator or μO in indoor environment. However, whether μO will deal with MNOs for renting RAN and how μO coordinate unlicensed band among multiple MNOs have not been discussed. How μO coordinate LAA RAN and spectrum including licensed band unlicensed band among multiple MNOs to provide different quality of service (QoS) for MNOs’ subscribers will be discussed. This research will focus on the incentives and conditions of transaction between MNO and μO and how μO effectively uses unlicensed band. The problem is as following: I. What are the incentives and conditions in which one MNO rents LAA from μO? The challenges lie in the analysis of revenue, cost, permission fee, etc. of LAA for MNO and μO according to the number of subscribers and service scenario. II. How does μO coordinate LAA and unlicensed band between two MNOs? The challenges lie in the rules of allocation on unlicensed band to increase efficiency and fairness. This thesis discusses whether MNO will build LAA network itself or rent LAA net-work from μO according to number of MNO’s subscribers and quantity of spectrum which MNO has. Moreover, to build micro operator opportunity analysis (MOOpA), cost of LAA network, fee of different QoS, heterogeneous spectrum allocation, etc. are considered by paper survey. MOOpA includes MNO transaction module, μO transaction module, media access control of LAA simulator (LAA simulator), etc. to solve the ques-tions in this thesis. In the aspect of cost, CAPEX and OPEX of building one small cell whose lifetime is 10-year are considered. In the aspect of MNO’s revenue, subscribers are divided into two types of QoS by 3GPP corresponding to different fee: Guaranteed bit rate (GBR) and Non-GBR. This thesis follows the rules in 3GPP and implement het-erogeneous spectrum allocation module. In this module, licensed band will be firstly allocated to GBR subscribers because GBR subscribers should be guaranteed with strict Qos. On the other hands, unlicensed band will be firstly allocated to Non-GBR sub-scribers although Non-GBR appropriately use both licensed and unlicensed band, as Non-GBR subscribers only should be guaranteed with loose Qos. To guarantee Qos of every subscriber including guaranteed maximum delay and minimum throughput, pro-portional fair scheduler module, defined by Basukala (2007), is used in LAA simulator to prevent subscribers from “starvation”. Finally, this research uses LAA simulator to evaluate MNO’s revenue in the scenarios of different QoS demands with limited spec-trum MNO having according to quantity of spectrum, number of subscribers, Qos types, fee, cost, etc. Furthermore, we discuss whether μO will deal with MNOs and how much renting RAN is. To coordinate unlicensed band between two MNOs, priority-oriented unlicensed band allocation algorithm module (POUBA) is the new design in the LAA simulator to allocate unlicensed band to MNOs. By the feature of that spectrum can be split equally to N resource blocks (RB), RBs are allocated to MNOs one by one according to the value of MNO’s priority. The value of MNO’s priority has two features as followed: (1) To avoid having idle spectrum, the more remained licensed band, the value of that li-censed band minus the part GBR subscribers use is, the less the value of MNO’s priority is. (2) The more RBs MNO has got, the less the value of MNO’s priority is. Compared with method of equalization where every MNO gets equal quantity of RBs, POUBA can satisfy greater number of Non-GBR subscribers in the scenarios where supply can or cannot meet demand. Eventually, Micro operator coordination of licensed assisted access system is im-plemented in this thesis. The system includes POUBA, graphical user interface (GUI) web of allocation management, database of management, interface ready for setting throughput command on unlicensed band in Industrial Technology Research Institute (ITRI) LAA small cell, etc. Proof of concept of for the feasibility of micro operator co-ordination of licensed assisted access in indoor environment is the goal.

APA, Harvard, Vancouver, ISO, and other styles

47

CHANG, YUNG-HAN, and 張永翰. "The Study on Legal Regulation of Mobile Virtual Network Operators (MVNO)." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/06141834827195057203.

Full text

Abstract:

碩士 東吳大學 法律學系 104 Nowadays internet is one of major resource in our life. As the smartphone universal. The internet has changed from fixed network to mobile network. In order to operate the mobile network. Mobile network operators (MNO) needs to build many telecommunications infrastructure and it coast a lot of funds. That means only government or a few huge megacorporation can be MNO. As the mobile network market has less competitive. It is hard to lower the price and improve the quality by market competitive. How to make competitive in mobile network market? Some of the coutory inturduce Mobile Virtual Network Operators (MVNO) in to the mobile network market to gain competitive. This reaserch by inturduce United Kindon and Japan’s MVNO regulation and situation. Compare with Taiwan’s regulation and situation. To find out why Taiwan’s MVNO is not so popular like United Kindon and Japan and how to improve it? This reaserch also anylist the dispute which Asia Pacific Telecom use Taiwanmobile’s mobile network to operate the mobile network service. Finally, the research point out the authorities should change its attitude toward the Mobile Network regulation in MNO and MVNO.

APA, Harvard, Vancouver, ISO, and other styles

48

Pogrebnyakov, Nicolai A. Maitland Carleen. "Internationalization of mobile network operators institutional distance, regional effects and country factors /." 2008. http://www.etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-2698/index.html.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Sanchez, Lourdes Diana Gutierrez, and 谷山安娜. "Market entry strategy for an Advertising Platform for Mobile Network Operators: a case study." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/95902269586546996470.

Full text

Abstract:

碩士 國立臺灣大學 企業管理碩士專班 105 The company GHT is intending to enter international markets with its new product line: a Data analytics software for mobile operators to launch mobile digital advertising services. This case study will develop recommendations for market entry into the market with the largest potential in Southeast Asia: Indonesia.

APA, Harvard, Vancouver, ISO, and other styles

50

Ncgobo, Victor Mandla. "Monitoring and evaluation of universal service obligations for mobile network operators in South Africa." Thesis, 2013. http://hdl.handle.net/10539/12764.

Full text

Abstract:

Research report submitted to the Faculty of Commerce, Law and Management, Graduate School of Public and Development Management, in partial fulfilment of the requirements for the Master of Management in the field of ICT Policy and Regulation, University of the Witwatersrand, 2012. Universal Service Obligations (USOs) have been used, for over a decade, as a regulatory mechanism to bridge the digital divide in South Africa. For USOs to be effective and efficient in bridging the digital divide, it requires close coordination between various impacted and interested stakeholders, such as mobile network operators (MNOs), the ICT regulatory authority (the Independent Communications Authority of South Africa), and the Universal Service and Access Agency of South Africa in order to extend the number of beneficiaries of the USOs. Furthermore, this requires stakeholders to understand the full impact, as well as the costs and benefits (financial and non financial) before imposing the USOs. The evidence from this research confirms that there was no monitoring and evaluation of USOs for MNOs during their implementation. More importantly, the Regulatory Impact Assessment (as a regulatory tool) was never used by ICASA in respect of the USOs initiative. This led to the failure of the initiative in achieving most of its objectives. Such failure can be attributed to lack of understanding by ICASA of the general impact of imposing the USOs upon MNOs, given that no impact assessment was done before such imposition. Recommendations arising from the research include the need for a shared vision on the USOs initiative, the need for clearly identified and defined roles for all stakeholders with an interest in the initiative, the need for a properly analysed and know ICT access gap, the need to balance the use of market and non market mechanisms in respect of USOs, the to ensure a proper funding mechanisms for USOs, and the need to identify effective regulatory governance in respect of USOs.

APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic 'Mobile Network Operators'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles