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Dissertations / Theses on the topic 'Third generation cell networks'

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Published: 4 June 2021

Last updated: 1 February 2022

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1

Kuruc, Jiří. "Podpora kvalitativních požadavků služeb v rádiových přístupových sítích vysokorychlostních variant mobilních sítí." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218103.

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The work deals with the developmental stages (Releases) of the third generation UMTS net-works. It explains a partial improvement from Release 99 to Release 5 and Release 6 to im-prove the quality parameters of a mobile data transmission. In the practical part, there are measured qualitative parameters of the third generation networks that are available in the Czech Republic: UMTS, HSDPA, CDMA 1xEV-DO Rev.0 and Rev.A and UMTS-TDD. The measurements give reasonably achievable data rates in both directions (downlink & uplunk), a response time, quality of VoIP calls, a dispersion, a data-loss and

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Dowrick, Thomas Martin. "Biologically motivated circuits for third generation neural networks." Thesis, University of Liverpool, 2011. http://livrepository.liverpool.ac.uk/3024754/.

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3

Nader, Gustavo. "Ultra Wideband Interference on Third-Generation Wireless Networks." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/30046.

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As a license-exempt technology, Ultra Wideband (UWB) can be used for numerous commercial and military applications, including ranging, sensing, low-range networking and multimedia consumer products. In the networking and consumer fields, the technology is envisioned to reach the mass market, with a very high density of UWB devices per home and office. The technology is based on the concept of transmitting a signal with very low power spectral density (PSD), while occupying a very wide bandwidth. In principle, the low emissions mask protects incumbent systems operating in the same spectrum from

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4

Ciatto, Giovanni. "Third generation neural networks: formalization as timed automata, validation and learning." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/12947/.

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Questa tesi mostra una formalizzazione delle reti neurali spiking ottenuta tramite automi temporizzati. Tali reti, a differenza di quelle di seconda generazione, tengono conto anche della dimensione temporale. Sono mostrate due codifiche, sincrona e asincrona, del modello "leaky integrate and fire": i neuroni sono modellati come automi temporizzati che attendono impulsi su dei canali di ingresso e aggiornano il potenziale in base agli input presenti e passati, modulati dai pesi delle rispettive sinapsi e tanto più influenti quanto più recenti. Se il potenziale supera una certa soglia, l'automa

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5

Barry, Mudar A. O. "Architectures for supporting Internet mobility beyond third generation mobile access networks." Thesis, University of Kent, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410920.

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Nader, Gustavo. "Radio Link Performance of Third Generation (3G) Technologies For Wireless Networks." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/32251.

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Third generation wireless mobile communication networks are characterized by the increasing utilization of data services â e-mail, web browsing, video streaming, etc. Such services allow the transition of the network from circuit switched to packet switched operation (circuit switched operation will still be supported), resulting in increased overall network performance. These new data services require increased bandwidth and data throughput, due to their intrinsic nature. Examples are graphics-intensive web browsing and video streaming, the latter being delay sensitive and requiring prio

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Lohmann, Marco [Verfasser]. "Online QoS, Revenue Management for Third Generation Mobile Communication Networks / Marco Lohmann." Dortmund : Universitätsbibliothek Technische Universität Dortmund, 2004. http://d-nb.info/1011532115/34.

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Dawood, Muneeb. "Error resilient packet switched H.264 video telephony over third generation networks." Thesis, De Montfort University, 2010. http://hdl.handle.net/2086/4849.

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Real-time video communication over wireless networks is a challenging problem because wireless channels suffer from fading, additive noise and interference, which translate into packet loss and delay. Since modern video encoders deliver video packets with decoding dependencies, packet loss and delay can significantly degrade the video quality at the receiver. Many error resilience mechanisms have been proposed to combat packet loss in wireless networks, but only a few were specifically designed for packet switched video telephony over Third Generation (3G) networks. The first part of the thesi

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9

Bou, Diab Wafaa. "End-to-security of real-time services over beyond third generation networks." Versailles-St Quentin en Yvelines, 2010. http://www.theses.fr/2010VERS0011.

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La sécurité représente un grand défi pour la transmission du trafic temps-réel sur les réseaux IP, l'objectif est d'acquérir le même niveau de sécurité offert par la téléphonie standard sans affecter la performance et la qualité de service. Sécuriser les services multimédia temps-réel sur un réseau IP est un processus complexe; les solutions de sécurité doivent prendre en compte les contraintes temps-réel des services voix et multimédia et leurs mécanismes doivent traiter les attaques possibles et l’overhead associé. La nécessité d’offrir un certain niveau de qualité de service (QoS) résulte s

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10

Jafari, Amir Hossein. "Dense small cell networks for next generation wireless systems." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/20644/.

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Rummler, Robert. "On the distribution of software to end-user terminals in third-generation mobile networks." Thesis, King's College London (University of London), 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416920.

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12

Singh, Kamal Deep. "Improving quality of service and resource utilization for multimedia streaming over third generation mobile networks." Rennes 1, 2007. ftp://ftp.irisa.fr/techreports/theses/2007/singh.pdf.

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The third generation mobile networks are designed to further enhance the communication by providing higher data rates and varied services, like voice, data and multimedia streaming services. The trend is towards an "All IP Network'' that will bring efficiency and cost reduction for the network equipments. Nevertheless, there are some new design problems such as the large IP overhead and high packet loss rates found in the radio links. Moreover, the existing IP network, the current Internet, cannot satisfy the requirements of real time applications in terms of delay, loss, jitter, etc. The firs

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13

Purle, David J. "Frequency hopped code division multiple access techniques for future wireless communications." Thesis, University of Bristol, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281833.

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14

Lange, Sturla. "Study and Design of a DC-DC Converter for Third Generation Solar Cells." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254291.

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The perceived battery capacity of battery-powered devices can be increased by harvesting energy from readily available sources. Third generation solar cells are a good candidate for this purpose since they can be integrated with these battery-powered devices and harvest power from diffused light. For a single third generation solar cell to be useful in the context of charging a Lithium based battery, the voltage must be increased tenfold. To increase this perceived battery capacity as much as possible, efficiency is crucial. In this thesis, DCDC converter topologies and designs are studied fro

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15

Matsumoto, Seiji. "Efficacy of the third-generation bisphosphonate zoledronic acid alone and combined with anti-cancer agents against small cell lung cancer cell lines." Kyoto University, 2006. http://hdl.handle.net/2433/135878.

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16

Ribeiro, Leila Zurba. "Traffic Dimensioning for Multimedia Wireless Networks." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/27199.

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Wireless operators adopting third-generation (3G) technologies and those migrating from second-generation (2G) to 3G face a number of challenges related to traffic modeling, demand characterization, and performance analysis, which are key elements in the processes of designing, dimensioning and optimizing their network infrastructure. Traditional traffic modeling assumptions used for circuit-switched voice traffic no longer hold true with the convergence of voice and data over packet-switched infrastructures. Self-similar models need to be explored to appropriately account for the burstiness

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17

Oddsdóttir, Hildur Æsa. "Macroscopic Modeling of Metabolic Reaction Networks and Dynamic Identification of Elementary Flux Modes by Column Generation." Doctoral thesis, KTH, Optimeringslära och systemteori, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-172367.

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In this work an intersection between optimization methods and animal cell culture modeling is considered. We present optimization based methods for analyzing and building models of cell culture; models that could be used when designing the environment cells are cultivated in, i.e., medium. Since both the medium and cell line considered are complex, designing a good medium is not straightforward. Developing a model of cell metabolism is a step in facilitating medium design. In order to develop a model of the metabolism the methods presented in this work make use of an underlying metabolic react

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Ahmed, Rana R. "Performance Modelling and Analysis of a New CoMP-based Handover Scheme for Next Generation Wireless Networks. Performance Modelling and Analysis for the Design and Development of a New Handover Scheme for Cell Edge Users in Next Generation Wireless Networks (NGWNs) Based on the Coordinated Multi-Point (CoMP) Joint Transmission (JT) Technique." Thesis, University of Bradford, 2017. http://hdl.handle.net/10454/16785.

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Inter-Cell Interference (ICI) will be one of main problems for degrading the performance of future wireless networks at cell edge. This adverse situation will become worst in the presence of dense deployment of micro and macro cells. In this context, the Coordinated Multi-Point (CoMP) technique was introduced to mitigate ICI in Next Generation Wireless Networks (NGWN) and increase their network performance at cell edge. Even though the CoMP technique provides satisfactory solutions of various problems at cell edge, nevertheless existing CoMP handover schemes do not prevent unnecessary handover

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19

Zhang, Lei. "The third generation mobile phone market in China an analysis of its development and forecasts about its future : a thesis in partial fulfilment of the degree of Master of Arts (Communication Studies) at the Auckland University of Technology , 2003." Full thesis. Abstract, 2003.

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20

Queiroz, Eduardo Martinelli Galvão de. "Algoritmo de alocação dinâmica de largura de faixa para redes de comunicação móvel celular." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-20062008-100444/.

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O crescente aumento da demanda de tráfego nas redes celulares vem aumentando a necessidade de uma melhor utilização dos recursos do sistema, já que sua expansão é custosa. Nas estações rádio base (ERB), a disponibilidade de largura de faixa de freqüências é limitada e desta maneira, em uma rede de comunicação móvel celular, o controle de admissão de chamadas exerce grande influência no desempenho do sistema, pois determina a utilização de banda das ERBs e se uma determinada quantidade de recursos (banda) será alocado ou não para uma determinada chamada. O desempenho da rede pode ser atrelado a

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Saliba, Michael. "Plasmonic nanostructures and film crystallization in perovskite solar cells." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:fdb36a9e-ddf5-4d27-a8dc-23fffe32a2c5.

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The aim of this thesis is to develop a deeper understanding and the technology in the nascent field of solid-state organic-inorganic perovskite solar cells. In recent years, perovskite materials have emerged as a low-cost, thin-film technology with efficiencies exceeding 16% challenging the quasi-paradigm that high efficiency photovoltaics must come at high costs. This thesis investigates perovskite solar cells in more detail with a focus on incorporating plasmonic nanostructures and perovskite film formation. Chapter 1 motivates the present work further followed by Chapter 2 which offers a br

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22

Giraud-berbezier, Aude. "Transport quantique en formalisme des fonctions de Green et interaction électron-photon pour la modélisation de cellules photovoltaïques." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4781.

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Ce document présente notre travail sur la modélisation en formalisme des fonctions de Green (abrégé formalisme de Green) du transport quantique et de l’intéraction éléctron-photon dans une cellule photovoltaïque composée d’une boîte quantique connectée à deux nanofils semi-infinis, La simulation numérique a été réalisée sur le cluster de calculs MERLIN (IM2NP). Nous présentons le formalisme de Green en général puis appliqué à cellule. Le fonctionnement général de la cellule est déduit de son diagramme de bande qui comporte des contacts sélectifs. Ensuite, nous présentons les résultats obtenus

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Albarazanchi, Abbas Kamal Hasan. "Composant diffractif numérique multispectral pour la concentration multifonctionnelle pour des dispositifs photovoltaïque de troisième génération." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAD029/document.

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La lumière du soleil est un bon candidat comme source propre et abondante d'énergie renouvelable. Cette source d'énergie écocompatible peut être exploitée pour répondre aux besoins croissants en énergie du monde. Plusieurs générations de cellules photovoltaïques ont été utilisées pour convertir directement la lumière solaire en énergie électrique. La troisième génération de type multijonction des cellules photovoltaïques est caractérisée par un niveau d'efficacité plus élevé que celui de tous les autres types de cellules photovoltaïques. Des dispositifs optiques, tels que des concentrateurs op

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Kuan-WeiHuang and 黃冠維. "Stem Cell Detection based on Convolutional Neural Network via Third Harmonic Generation Microscopy Images." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/uy4cze.

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Wang, Zong-Wu, and 王宗五. "A Multicast Mechanism in Third Generation Mobile Networks." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/wpyzwa.

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碩士<br>靜宜大學<br>資訊管理學系研究所<br>91<br>When the mobile communication was devised, the way of communication is changed dramatically. People can use mobile devices to get information in any time and at any place. With the success of the voice services in second-generation mobile systems, the demand of the mobile communication, especially of the data communication, grew rapidly. However, comparing with the fixed network, the bandwidth of the 2G system was lower. The bandwidth of the mobile networks will be out of use in the future multimedia networks. The third-generation mobile communication network p

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Fong, Mo-Han. "Medium access control for Beyond Third Generation heterogeneous wireless networks." Thesis, 2006. http://hdl.handle.net/1828/2208.

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This thesis focuses on one of the key development areas of Beyond IMT-2000 or Beyond 3rd Generation (B3G) systems recommended by ITU-R M.1645, that is, new radio access systems that provide significantly higher performance for different deployment scenarios which may encompass different access technologies while maintaining seamless access and mobility from the user's perspective. Our objective is to develop various Medium Access Control (MAC) solutions for this new B3G access system. We introduce a novel B3G multi-mode access system framework based on heterogeneous physical layer (PL) modes

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Juma, Raymond Wekesa. "An optimisation approach for capacity enhancement in third generation (3G) mobile networks." Thesis, 2012. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000570.

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M. Tech. Electrical Engineering.<br>This study proposes a mathematical optimisation approach which invokes Genetic Algorithm (GA) for initialisation and application of Tabu Search (TS) algorithm in finding the sites of node Bs in the network to enable it have the potential to support an increased number of users requiring the increased number of services. The global optimisation can be obtained in terms of great probability as GA is applied to global search and TS is applied to the local search. The particular memory ability of TS can be integrated to GA and the prematurity of GA can be avoide

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Patwary, M., S. K. Sharma, S. Chatzinotas, et al. "Universal Intelligent Small Cell for Next Generation Cellular Networks." 2016. http://hdl.handle.net/10454/10185.

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Yes<br>Exploring innovative cellular architectures to achieve enhanced system capacity and good coverage has become a critical issue towards realizing the next generation of wireless communications. In this context, this paper proposes a novel concept of Universal Intelligent Small Cell (UniSCell) for enabling the densification of the next generation of cellular networks. The main motivating factors behind the proposed small cell concept are the need of public infrastructure reengineering and the recent advances in several enabling technologies such as spectrum awareness, adaptive beamforming,

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郭敏良. "A Hybrid Scheme for Resource Allocation on The Third-Generation Wireless Communications Networks." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/83358034413498281247.

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碩士<br>國立中央大學<br>資訊管理研究所<br>88<br>The third-generation wireless communications networks will be brought to the world in the early years of this century. It provides a seamless integration of multimedia-oriented services from both fixed IP networks and wireless communication networks; it is also aimed to provide adequate performance for various service requirements. One of the most important challenges for the development of 3rd generation mobile system is to develop technologies for wireless communication resource management and efficient handover. The important and complex issue i

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Yang, Kai-Jei, and 楊凱傑. "Cell Coverage and Maximum Available Data Rate for Third Generation Mobile Communication Systems." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/12821339474028481894.

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碩士<br>國立清華大學<br>通訊工程研究所<br>90<br>Many data services are available in third-generation (3G) mobile communication systems and may have different data rates on transmission. It is important to maintain the link quality and performance when higher data rate is served. For example, real time video service is one of the services which require high data rate and high transmission quality. Unfortunately, the higher data rate we use, the lower processing gain we get, and fewer ability of anti-multiple- access-interference (MAI) we will have. Not only the processing gain, but also the carrier-to-interfe

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Wang, Wei-Zen, and 王偉仁. "QoS Oriented Bandwidth Management Scheme for Multimedia Services in the third generation mobile communications networks." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/62535330930906643638.

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碩士<br>國立中興大學<br>電機工程學系<br>89<br>In the future wireless personal communications systems, the systems are expected to provide a wide range of multimedia services including CBR, VBR, ABR, and UBR traffic type for mobile users with guaranteed quality of service. We propose a modified bandwidth management scheme to guarantee the QoS of various type of services in the third generation mobile communications networks. The proposed bandwidth management scheme consists of the call admission control (CAC) scheme that makes use of guard channel method and the time slot scheduling scheme simultaneously uti

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Chen, Chien-Kuo, and 陳建國. "Video-rate Third-harmonic-generation Microscopy for in vivo Blood Cell Cytometry in Human Capillaries." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/44645326108476944617.

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碩士<br>國立臺灣大學<br>醫學工程學研究所<br>100<br>Complete Blood Count (CBC) is a routine examination running in the hospital. In clinical practices, CBC plays an important role in the diagnosis of diseases. The results of inspection will be a significant indicator of evaluating individual health status. The items of checking include: erythrocytes (red blood cells, RBCs) count, leukocytes (white blood cells, WBCs) count, thrombocytes (platelets) count, Hemoglobin, Hematocrit and so on. Although CBC is a common examination in laboratory medicines, it requires a draw of blood, which is an invasive method to pa

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Hung, Minshu, and 洪敏書. "Novel Handoff Decision with Adaptive Hysteresis in Next-Generation HybridMacro/Femto-cell Networks." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/25710408818862108673.

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碩士<br>國立中正大學<br>通訊工程研究所<br>100<br>Femto base stations are usually installed in the region of macrocells in next-generation hybrid macro/femto-cell networks, and the transmit power of macro base stations is much larger than that of femto base stations. Because the conventional handover decision is only based on the received signal strength (RSS), user equipments near the center of macrocells hardly camp on femtocells, even if the RSS of femtocells satisfies the link quality requirement. In order to solve the problem, we propose a novel handover decision algorithm with adaptive hysteresis thresh

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Chen, Jian. "Active queue management techniques to improve Quality of Service for real-time flows in third generation wireless networks." Thesis, 2002. http://hdl.handle.net/2429/12416.

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In this thesis, we analyze the behavior of real-time flows with hard time deadline using link layer retransmission to overcome wireless errors, and propose two new mechanisms to improve these flows' end-to-end Quality-of-Service (QoS) over a wireless network. Wireless channels have the characteristic that link quality varies according to propagation conditions. For real-time flows with hard time deadlines, link layer retransmissions over a wireless network, necessitated by fluctuations in link quality, may result in a high number of packets being dropped, as deadlines expire. The expired

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Lindemann, Christoph, Marco Lohmann, and Axel Thümmler. "Adaptive performance management for universal mobile telecommunications system networks." 2002. https://ul.qucosa.de/id/qucosa%3A32549.

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In this paper, we introduce a framework for the adaptive control of universal mobile telecommunications system (UMTS) networks in order to improve bandwidth utilization of the radio channels. The key contribution of the paper constitutes the introduction of a performance management information base for dynamically adjusting the packet scheduler and admission controller. Thus, the adaptive control framework closes the loop between network operation and network control. Furthermore, the adaptive control framework can effectively deal with the different time scales of packet scheduling and admiss

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Xing, Tingli. "Computational Study in Chaotic Dynamical Systems and Mechanisms for Pattern Generation in Three-Cell Networks." 2015. http://scholarworks.gsu.edu/math_diss/27.

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A computational technique is introduced to reveal the complex intrinsic structure of homoclinic and heteroclinic bifurcations in a chaotic dynamical system. This technique is applied to several Lorenz-like systems with a saddle at the center, including the Lorenz system, the Shimizu-Morioka model, the homoclinic garden model, and the laser model. A multi-fractal, self-similar organization of heteroclinic and homoclinic bifurcations of saddle singularities is explored on a bi-parametric plane of those dynamical systems. Also a great detail is explored in the Shimizu-Morioka model as an example.

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Lin, Wen-Ching, and 林玟靜. "Study of Product Life Cycle of the Third Generation Cell Phone and Single Brand Product Inventory Management by Adopting EOQ Model." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/93y294.

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碩士<br>國立東華大學<br>全球運籌管理研究所<br>95<br>The purpose of the study is to analyze inventory policies for a product incorporating the impact of demand variations at different stages of product life cycle. Based on the past demand data of the 3rd generation (3G) cellular phone market,we forecast the sales of 3G along its product life cycle by adopting the Bass diffusion model to estimate effect of invention, effect of imitation and market potential. To supply the demand properly, we analyze the total inventory management cost through ARENA simulation given EOQ model as a major inventory control policy.

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Ciou, Jhih-Shin, and 邱志信. "A Study of Inventory Control Facing Demand Forecasted by Stochastic Bass Model Using the Third Generation Cell Phone Sales Data in Taiwan." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/d6m436.

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碩士<br>國立東華大學<br>全球運籌管理研究所<br>96<br>The product life cycles of modern merchandises, such as mobile phones, have been impacted by the evolution of innovative technology. The innovation of mobile phones turns the role of the cell phone from the traditional communication products into the multi-functional action goods. Under the situation of high popularity of mobile phones, the sales forecast of its product life cycles may lead a contribution to further realize the behavior of the market. A better realization of the market will have an opportunity to coordinate the supply of the demand to achieve

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Huang, Cheng-Ru, and 黃成儒. "System Performance Analysis of Various Macro/Femto Cell Spectrum Resource Allocation Strategies in Next-Generation Mobile Communication Networks." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/23155323087922856608.

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碩士<br>國立中正大學<br>通訊工程學系<br>98<br>Next-generation mobile communication system (IMT Advanced defined by ITU-R) or fourth generation (4G; 4th generation) cellular system must have target peak data rates of up to approximately 100Mbit/s for high mobility such as mobile access and up to approximately 1Gbit/s for low mobility such as nomadic/local wireless access, according to the ITU requirements. Because of the high requirements of the data rate, spectrum efficiency, and coverage, next-generation mobile communication systems will be designed significantly different from the traditional systems, inc

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Funde, Lesego. "Social media factors impacting purchase intention of mobile devices amongst working Generation Y in South Africa." Thesis, 2017. http://hdl.handle.net/10539/23683.

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A research report submitted to the Faculty of Commerce, Law and Management, University of the Witwatersrand, in partial fulfilment of the requirements for the degree of Master of Management in Strategic Marketing, 2016<br>Word-of-mouth (WOM) has been seen to be one of the most powerful resources of transmitting information. Progression in Information technology and the rise of online social network sites have changed the way information is being conveyed. This phenomenon sways consumers as this effortlessly accessible information could significantly influence their consumption decision. The

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Αυλωνίτης, Αθανάσιος, та Αναστάσιος Λαμπρόπουλος. "Υλοποίηση αλγορίθμου και προσομοίωση για τη βέλτιστη διαχείρηση φορητών συσκευών σε ετερογενή ασύρματα δίκτυα". Thesis, 2009. http://nemertes.lis.upatras.gr/jspui/handle/10889/2515.

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Η διπλωματική εργασία υλοποιεί και προσομοιώνει αλγόριθμο για τη βέλτιστη διαχείριση φορητών συσκευών σε ετερογενή ασύρματα δίκτυα. Στο πρώτο κεφάλαιο γίνεται μια εισαγωγή στις γενικές αρχές των Κυτταρικών Συστημάτων Κινητών Επικοινωνιών παρουσιάζοντας την βασική ιδέα των διαφόρων γενιών κινητών επικοινωνιών. Στο δεύτερο κεφάλαιο αναλύονται τα συστήματα τρίτης γενιάς – 3G. Στο τρίτο κεφάλαιο αναφέρονται τα τεχνικά χαρακτηριστικά, τα πλεονεκτήματα και οι σχέσεις της πλατφόρμας TETRA. Στο τέταρτο κεφάλαιο περιγράφεται το σύστημα και οι λειτουργίες του TETRAPOL καθώς και τα πλεονεκτήματα και οι υ

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