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Dissertations / Theses on the topic 'HetNets'

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Published: 4 June 2021
Last updated: 25 July 2025

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1

ARAÚJO, Welton Vasconcelos. "Análise de heurísticas de implantação de hetnets densas." Universidade Federal do Pará, 2017. http://repositorio.ufpa.br/jspui/handle/2011/8996.

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Submitted by Nathalya Silva (nathyjf033@gmail.com) on 2017-06-28T19:06:53Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao_AnaliseHeuristicasImplantacao.pdf: 1418703 bytes, checksum: ab42b13a44b8993e7b01035740d7becd (MD5)<br>Approved for entry into archive by Irvana Coutinho (irvana@ufpa.br) on 2017-08-17T13:35:58Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao_AnaliseHeuristicasImplantacao.pdf: 1418703 bytes, checksum: ab42b13a44b8993e7b01035740d7becd (MD5)<br>Made avail
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Lahad, Bachir. "Joint Uplink/Downlink Radio Resource Allocation in 5G HetNets." Electronic Thesis or Diss., université Paris-Saclay, 2020. http://www.theses.fr/2020UPASG057.

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La croissance rapide du trafic de données sans fil et des services intensifs en bande passante (voix sur IP, streaming vidéo, live streaming, etc.) nécessite de trouver des solutions viables pour améliorer la qualité de service et maximiser les performances du réseau. Pour s'adapter à ces applications intensives en bande passante, les réseaux cellulaires hétérogènes (HetNets) ont été introduits dans le 3GPP comme l'une des principales caractéristiques pour répondre à ces exigences avancées.Maintenant, en raison de la différence de charges de trafic de liaison montante (UL) et de liaison descen
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3

Smpokos, Georgios. "Performance Analysis in Wireless HetNets: Traffic, Energy, and Secrecy Considerations." Licentiate thesis, Linköpings universitet, Kommunikations- och transportsystem, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-174244.

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To this day, most of the communication networks are characterized by a "monolithic" operating approach. Network elements are configured and operate without any reconfiguration for long time periods. Softwarization, whereby dedicated elements are being replaced by more general-purpose devices, has been lately challenging this existing approach. Virtualizing the infrastructure through the softwarization can provide significant benefits to end users and operators, supporting more flexible service deployment, providing real time monitoring and operational changes.  In Paper I we study a novel allo
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4

Balakrishnan, Ravikumar. "Handover management in heterogeneous networks for 4G and beyond cellular systems." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53634.

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New technologies are expected to play a major role for wireless cellular systems beyond the existing 4G paradigm. The need for several orders of magnitude increase in system capacity has led to the proliferation of low-powered cellular layers overlaid on the existing macrocell layer. This type of network consisting of different cellular layers, each with their unique characteristics including transmission power and frequency of operation among others is termed as a heterogeneous network (HetNet). The emergence of HetNets leads to several research challenges and calls for a profound rethinking
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Li, Chao. "A Non-Uniform User Distribution and its Performance Analysis on K-tier Heterogeneous Cellular Networks Using Stochastic Geometry." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/38803.

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In the cellular networks, to support the increasing data rate requirements, many base stations (BSs) with low transmit power and small coverage area are deployed in addition to classical macro cell BSs. Low power nodes, such as micro, pico, and femto nodes (indoor and outdoor), which complement the conventional macro networks, are placed primarily to increase capacity in hotspots (such as shopping malls and conference centers) and to enhance coverage of macro cells near the cell boundary. Combining macro and small cells results in heterogeneous networks (HetNets). An accurate node (BS or use
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6

Frei, Sandra. "Optimisation of traffic steering for heterogeneous mobile networks." Thesis, University of Plymouth, 2015. http://hdl.handle.net/10026.1/3480.

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Mobile networks have changed from circuit switched to IP-based mobile wireless packet switched networks. This paradigm shift led to new possibilities and challenges. The development of new capabilities based on IP-based networks is ongoing and raises new problems that have to be tackled, for example, the heterogeneity of current radio access networks and the wide range of data rates, coupled with user requirements and behaviour. A typical example of this shift is the nature of traffic, which is currently mostly data-based; further, forecasts based on market and usage trends indicate a data tra
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7

Sapountzis, Nikolaos. "Optimisation au niveau réseau dans le cadre des réseaux hétérogènes nouvelle génération." Electronic Thesis or Diss., Paris, ENST, 2016. http://www.theses.fr/2016ENST0082.

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Depuis 2016, il est bien connu que les réseaux mobiles dominent nos vies. Nous utilisons nos téléphones cellulaires pour presque tout: du réseautage social au streaming, à la recherche de logement ou pour les transactions bancaires. Néanmoins, il semble que les opérateurs ne comprennent pas cette domination, puisque leurs réseaux sont constitués de nœuds qui: (i) subissent d'énormes fluctuations de charge, (ii) gaspillent leurs ressources, et (iii) sont accusés d'être tueurs d'énergie majeurs. Ces inconvénients nuisent à load-balancing, efficacité spectrale et énergétique, respectivement. L'ob
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8

Babun, Leonardo. "Extended Coverage for Public Safety and Critical Communications Using Multi-hop and D2D Communications." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/1920.

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In this thesis, we proposed the use of device-to-device (D2D) communications for extending the coverage area of active base stations, for public safety communications with partial coverage. A 3GPP standard compliant D2D system level simulator is developed for HetNets and public safety scenarios and used to evaluate the performance of D2D discovery and communications underlying cellular networks. For D2D discovery, the benefits of time-domain inter-cell interference coordi- nation (ICIC) approaches by using almost blank subframes were evaluated. Also, the use of multi-hop is proposed to improve
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9

Ghariani, Takoua. "Conservation de l'énergie sur des environnements de réseaux d'accès radio hétérogènes : vers des réseaux auto-organisants et verts." Thesis, Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0023/document.

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La préservation de l’environnement et des ressources naturelles pour les prochaines générations est aujourd’hui considérée comme un des axes les plus prioritaires dans presque tous les secteurs économiques. Le secteur des Technologies de l’Information et de la Communication est loin d’être épargné de cette tendance écologique. Nous considérons dans cette thèse la problématique de la conservation d’énergie dans le contexte technologique actuel caractérisé par: • La coexistence d’une multitude de technologies d’accès sans fil offrant un environnement riche et dynamique • Des terminaux mobiles mu
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Banik, Pushpanjali. "Software defined virtualized cloud radio access network (SD-vCRAN) and programmable EPC for 5G." Thesis, Brunel University, 2018. http://bura.brunel.ac.uk/handle/2438/16225.

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This thesis focuses on proposing a Software Defined Network (SDN) based programmable and capacity optimized backhaul and core network which is critical for 5G network design. Cloud Radio Access networks (CRAN) which is key enabler of 5G networks can address a number of challenges that mobile operators face while trying to support ever-growing end-users' needs towards 5th generation of mobile networks (5G). A novel layered and modular programmable CRAN architecture called Software Defined Virtualised Cloud Radio Access Network (SD-vCRAN) is introduced with Network Function Virtualization (NFV)
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11

Trabelsi, Nessrine. "A Game Theoretic Framework for User Association & Inter-cell Interference Management in LTE Cellular Networks." Thesis, Avignon, 2016. http://www.theses.fr/2016AVIG0215/document.

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Conduit par une croissance exponentielle dans les appareils mobiles et une augmentation continue de la consommation individuelle des données, le trafic de données mobiles a augmenté de 4000 fois au cours des 10 dernières années et près de 400millions fois au cours des 15 dernières années. Les réseaux cellulaires homogènes rencontrent de plus en plus de difficultés à gérer l’énorme trafic de données mobiles et à assurer un débit plus élevé et une meilleure qualité d’expérience pour les utilisateurs.Ces difficultés sont essentiellement liées au spectre disponible et à la capacité du réseau.L’ind
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12

Abdelnasser, Amr Adel Nasr. "Radio resource management techniques for multi-tier cellular wireless networks." IEEE Transactions on Mobile Computing, 2013. http://hdl.handle.net/1993/30993.

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There is a prolific increase in the penetration of user devices such as smartphones and tablets. In addition, user expectations for higher Quality of Service (QoS), enhanced data rates and lower latencies are relentless. In this context, network densification through the dense deployment of small cell networks, underlaying the currently existing macrocell networks, is the most appealing approach to handle the aforementioned requirements. Small cell networks are capable of reusing the spectrum locally and providing most of the capacity while macrocell networks provide a blanket coverage for mob
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Mezzavilla, Marco. "Advanced Resource Management Techniques for Next Generation Wireless Networks." Doctoral thesis, Università degli studi di Padova, 2014. http://hdl.handle.net/11577/3423728.

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The increasing penetration of mobile devices in everyday life is posing a broad range of research challenges to meet such a massive data demand. Mobile users seek connectivity "anywhere, at anytime". In addition, killer applications with multimedia contents, like video transmissions, require larger amounts of resources to cope with tight quality constraints. Spectrum scarcity and interference issues represent the key aspects of next generation wireless networks. Consequently, designing proper resource management solutions is critical. To this aim, we first propose a model to better assess the
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14

Himmelstein, Daniel S. "The hetnet awakens| understanding complex diseases through data integration andopen science." Thesis, University of California, San Francisco, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10133408.

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<p> Human disease is complex. However, the explosion of biomedical data is providing new opportunities to improve our understanding. My dissertation focused on how to harness the biodata revolution. Broadly, I addressed three questions: how to integrate data, how to extract insights from data, and how to make science more open. </p><p> To integrate data, we pioneered the hetnet&mdash;a network with multiple node and relationship types. After several preludes, we released Hetionet v1.0, which contains 2,250,197 relationships of 24 types. Hetionet encodes the collective knowledge produced by m
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15

Ghariani, Takoua. "Conservation de l'énergie sur des environnements de réseaux d'accès radio hétérogènes : vers des réseaux auto-organisants et verts." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0023.

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La préservation de l’environnement et des ressources naturelles pour les prochaines générations est aujourd’hui considérée comme un des axes les plus prioritaires dans presque tous les secteurs économiques. Le secteur des Technologies de l’Information et de la Communication est loin d’être épargné de cette tendance écologique. Nous considérons dans cette thèse la problématique de la conservation d’énergie dans le contexte technologique actuel caractérisé par: • La coexistence d’une multitude de technologies d’accès sans fil offrant un environnement riche et dynamique • Des terminaux mobiles mu
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16

Mahbas, Ali. "Challenges imposed by user's mobility in future HetNet : offloading and mobility management." Thesis, University of Kent, 2017. https://kar.kent.ac.uk/62522/.

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The users' mobility imposes challenges to mobility management and, the offloading process, which hinder the conventional heterogeneous networks (HetNets) in meeting the huge data traffic requirements of the future. In this thesis, a trio-connectivity (TC), which includes a control-plane (C-plane), a user-plane (U-plane) and an indication-plane (I-plane), is proposed to tackle these challenges. Especially, the I-plane is created as an indicator to help the user equipment (UE) identify and discover the small cells in the system prior to offloading her from the overloaded cells e.g. macro cells,
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17

Barcellos, Antonio Marinho Pilla. "O sistema operacional de rede heterogêneo HetNOS." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 1993. http://hdl.handle.net/10183/25456.

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O advento dos computadores pessoais e posteriormente das estações de trabalho, somado ao desenvolvimento de hardware de comunicação eficiente e de baixo custo, levou a popularização das redes locais. Entretanto, o software não presenciou o mesmo desenvolvimento do hardware, especialmente devido a complexidade dos sistemas distribuídos. A heterogeneidade das máquinas, sistemas e redes, inerente aos ambientes computacionais modernos, restringe igualmente a integração e cooperação entre os nodos disponíveis. 0 objetivo do presente trabalho é, a partir da análise dos principais aspectos relacionad
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18

Qachri, Naïm. "Heterogeneous Networks: from integration to mobility." Doctoral thesis, Universite Libre de Bruxelles, 2015. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/216693.

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Français:La notion de réseaux hétérogènes correspond à l’intégration de plusieurs technologies de transmission de données sans-fil dans le but d’accroitre la qualité de service des communications dans les réseaux mobiles.Historiquement, les mécanismes de sécurité des réseaux mobiles et sans-fil ont été largement focalisés sur la protection d’équipement utilisateur au niveau du dernier saut de communication et sur base d’une connectivité simple et unique. Cette connectivité, réduite à sa plus simple expression, a restraint le développement des protocoles de sécurité à des protocoles bi-parties,
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19

Cong, Guanglei. "Pico Cell Densification Study in LTE Heterogeneous Networks." Thesis, KTH, Kommunikationsteori, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-103918.

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Heterogeneous Network (HetNet) deployment has been considered as the main approach to boost capacity and coverage in Long Term Evolu-tion (LTE) networks in order to fulfill the huge future demand on mo-bile broadband usage. In order to study the improvement on network performance, i.e. capacity, coverage and user throughput, from pico cell densification in LTE HetNets, a network densification algorithm which determines the placement locations of the pico sites based on pathloss has been designed and applied to build several network models with different pico cell densities. The study has been
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Khwandah, Sinan. "System optimisation and radio planning for future LTE-advanced." Thesis, Brunel University, 2015. http://bura.brunel.ac.uk/handle/2438/13822.

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This work is related to wireless communication. In this Thesis three main issues are addressed for future cellular networks: power consumption, interference and mobility. These issues continue to be a burden on the system’s performance as long as technology keeps evolving. In the presented chapters, the focus was to introduce greater intelligence to the LTE system algorithms and bring to them a dynamic and self-organizing approach. The first approach concerns power consumption in wireless terminals. The currently applied solution to save energy is the DRX mechanism. It organizes the time when
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Kurda, Reben. "Cooperation strategies for inter-cell interference mitigation in OFDMA systems." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112032/document.

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Récemment, l'utilisation des réseaux cellulaires a radicalement changé avec l’émergence de la quatrième génération (4G) de systèmes de télécommunications mobiles LTE/LTE-A (Long Term Evolution-Advanced). Les réseaux de générations précédentes (3G), initialement conçus pour le transport de la voix et les données à faible et moyen débits, ont du mal à faire face à l’augmentation accrue du trafic de données multimédia tout en répondant à leurs fortes exigences et contraintes en termes de qualité de service (QdS). Pour mieux répondre à ces besoins, les réseaux 4G ont introduit le paradigme des Rés
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Legonkov, Pavel, and Vasily Prokopov. "Small Cell Wireless Backhaul in Mobile Heterogeneous Networks." Thesis, KTH, Kommunikationssystem, CoS, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-99010.

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Small cells are deployed in a crowded areas with a high demand for both coverage and capacity. It is hard to address both of these requirements simultaneous with a conventional mobile network architecture based on macro cells. In many case a wire is not available to connect the small cell to the core of the mobile network. Under these circumstances a wireless link could be a convenient solution for the backhaul. In this master’s thesis IEEE 802.11n technology was evaluated to assess its suitability for backhaul from a small wireless cell. The performance of wireless equipment manufactured by s
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Huq, Kazi Mohammed Saidul. "Advanced energy efficient coordinated multi-point transmission for OFDMA." Doctoral thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/12880.

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Doutoramento em Engenharia Eletrotécnica<br>The ever-growing energy consumption in mobile networks stimulated by the expected growth in data tra ffic has provided the impetus for mobile operators to refocus network design, planning and deployment towards reducing the cost per bit, whilst at the same time providing a signifi cant step towards reducing their operational expenditure. As a step towards incorporating cost-eff ective mobile system, 3GPP LTE-Advanced has adopted the coordinated multi-point (CoMP) transmission technique due to its ability to mitigate and manage inter-cell inter
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Tall, Abdoulaye. "Optimisation et Auto-Optimisation dans les réseaux LTE." Thesis, Avignon, 2015. http://www.theses.fr/2015AVIG0208/document.

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Le réseau mobile d’Orange France comprend plus de 100 000 antennes 2G, 3G et 4G sur plusieurs bandes de fréquences sans compter les nombreuses femto-cells fournies aux clients pour résoudre les problèmes de couverture. Ces chiffres ne feront que s’accroître pour répondre à la demande sans cesse croissante des clients pour les données mobiles. Cela illustre le défi énorme que rencontrent les opérateurs de téléphonie mobile en général à savoir gérer un réseau aussi complexe tout en limitant les coûts d’opération pour rester compétitifs. Cette thèse s’attache à utiliser le concept SON (réseaux au
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Jouini, Hana. "Radio Resource Management in LTE Networks : Load Balancing in Heterogeneous Cellular Networks." Thesis, Paris, CNAM, 2017. http://www.theses.fr/2017CNAM1153/document.

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Face à la croissance exponentielle des réseaux mobiles très haut débit, les opérateurs de téléphonie mobile se sont lancé dans le déploiement des réseaux dits hiérarchiques (HetNet), composés par des sous-réseaux avec des caractéristiques divergentes en termes de type des cellules déployées et des technologies d’accès radio utilisées. Avec ce caractère hétérogène des réseaux cellulaire, l’exploitation de ces derniers devienne de plus en plus compliquée et coûteuse impliquant le déploiement, la configuration et la reconfiguration de stations de base et d’équipements de différentes caractéristiq
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Jouini, Hana. "Radio Resource Management in LTE Networks : Load Balancing in Heterogeneous Cellular Networks." Electronic Thesis or Diss., Paris, CNAM, 2017. http://www.theses.fr/2017CNAM1153.

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Face à la croissance exponentielle des réseaux mobiles très haut débit, les opérateurs de téléphonie mobile se sont lancé dans le déploiement des réseaux dits hiérarchiques (HetNet), composés par des sous-réseaux avec des caractéristiques divergentes en termes de type des cellules déployées et des technologies d’accès radio utilisées. Avec ce caractère hétérogène des réseaux cellulaire, l’exploitation de ces derniers devienne de plus en plus compliquée et coûteuse impliquant le déploiement, la configuration et la reconfiguration de stations de base et d’équipements de différentes caractéristiq
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Mowla, Md Munjure. "Next generation wireless communication networks: Energy and quality of service considerations." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2018. https://ro.ecu.edu.au/theses/2158.

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The rapid growth in global mobile phone users has resulted in an ever-increasing demand for bandwidth and enhanced quality-of-service (QoS). Several consortia comprising major international mobile operators, infrastructure manufacturers, and academic institutions are working to develop the next generation wireless communication systems fifth generation (5G) - to support high data rates and increased QoS. 5G systems are also expected to represent a greener alternative for communication systems, which is important because power consumption from the information and communication technology (ICT)
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Ding, Da-Hao, and 丁大豪. "Interference Management in HetNets by Multi-tone subframe." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/12809209909938281376.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>102<br>In heterogeneous networks(HetNets), the time domain inter-cell interference coordination techniques specified in 3GPP standard. Almost Blank Subframes (ABSs) are an important part of enhanced Inter-Cell Interference Coordination(eICIC). The purpose of ABSs is to protect users served by pico base stations(PBSs) from suffering macro base stations(MBSs) interference. However, the capacity of MBSs users have been degraded due to the concept of ABS is to blank some subframes of MBSs. We can figure out the proportion of ABSs would casue different result. The higher
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Hsu, Tong, and 徐彤. "Beam-based Handover Strategy for 5G mmWave HetNets." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/e8he3b.

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碩士<br>國立交通大學<br>電信工程研究所<br>106<br>The goal of this thesis is to propose a handover strategy to deal with the handover frequency problem in mmWave HetNets with dense base station (BS) deployment. To overcome the high propagation loss experienced at high frequencies, mmWave transmission heavily relies on highly directional antennas. However, because directional transmission is sensitive to position changes, the existing handover strategies which only consider the instantaneous received signal strength fails to provide robust connections for moving users. In this thesis, we propose an improved ha
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Qaimkhani, Irshad Ali. "Improving Frequency Reuse and Cochannel Interference Coordination in 4G HetNets." Thesis, 2013. http://hdl.handle.net/10012/7807.

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This report describes my M.A.Sc. thesis research work. The emerging 4th generation (4G) mobile systems and networks (so called 4G HetNets) are designed as multilayered cellular topology with a number of asymmetrically located, asymmetrically powered, self-organizing, and user-operated indoor small cell (e.g., pico/femto cells and WLANs) with a variety of cell architectures that are overlaid by a large cell (macro cell) with some or all interfering wireless links. These designs of 4G HetNets bring new challenges such as increased dynamics of user mobility and data traffic trespassing over the
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Yang, Ting-Yeu, and 楊庭宇. "UE and MIMO Mode Selection with Mixed Antenna Allocation in LTE HetNets." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/64096536914923382610.

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碩士<br>國立中央大學<br>通訊工程學系<br>103<br>Heterogeneous networks (HetNets) and Multi-user MIMO (MU-MIMO) are possible solutions for spectrum efficiency problem in the next generation mobile communication. They will coexist in the future. However, the users in HetNets are sensitive to inter-cell interference, limit the system performance. Thus, 3GPP LTE designs enhanced inter-cell interference coordination (eICIC) and uses coordinated multi-point (CoMP) to cancel the interference. Recently works consider MU-MIMO and CoMP as two transmission modes and switch them by scheduling, do not have a mode mix t
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Lee, Jin-Wei, and 李晉瑋. "Simulation and Analysis of a Greedy Algorithm for Radio Resource Allocation in LTE-A HetNets." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/16141664055845348963.

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碩士<br>國立中興大學<br>電機工程學系所<br>105<br>The evolution of wireless network technology and the improvement of mobile devices improve the quality of human life. Hence, in recent years, the demand for 4G networks become more and more important. The 4G standards are set up according to the requirements of the IMT-Advanced specification defined by the International Telecommunication Union (ITU), which remains a certain quality of service for both high-speed and low-speed situations. Particularly, the radio resource allocation of such a system has become a popular issue. In this paper, we discuss how to pe
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Huang, Bo-Jyun, and 黃博駿. "An Adaptive ABS Management Mechanism with Cell-Overlapping and Packet-Delay Consideration in LTE-A HetNets." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/55388w.

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碩士<br>國立中山大學<br>資訊工程學系研究所<br>107<br>With the popularization of mobile phones and the development of wireless technologies, people prefer using multimedia streaming and social networking applications, instead of just voice and short messages. To meet the growing demand of bandwidth, operators have deployed a large number of small cells to reduce the network load, but inter-cell interference also increases. Therefore, the 3GPP organization proposed the technology of "enhanced inter-cell interference coordination" (eICIC) in the LTE-A standard. By using almost blank subframe (ABS), a macrocell ba
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Hsu, Yi-Huai, and 徐逸懷. "Efficient Access Control for M2M Communications and Traffic Adaptive Inter-Cell Interference Coordination over LTE-A HetNets." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/97920992761338087289.

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博士<br>國立交通大學<br>資訊科學與工程研究所<br>104<br>Wireless data traffic has seen prolific growth in recent years because the use of smart handheld devices and new emerging services are widespread, such as real-time video streaming and multimedia file sharing. To handle huge wireless data traffic, LTE-A (Long Term Evolution-Advanced) has adopted heterogeneous networks (HetNets) architecture, which consists of macro eNB and pico eNB/relay node (RN), to increase the capacity of LTE-A. In LTE-A HetNets, access control for Machine-to-Machine (M2M) communications, energy saving, and inter-cell interference coord
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Melim, Joaquim Teixeira. "Implementation and evaluation on system generator of a cooperative system for 5G future systems." Master's thesis, 2020. http://hdl.handle.net/10773/29547.

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With the arrival of 5G it is expected the proliferation of services in the different fields such as healthcare, utility applications, industrial automation, 4K streaming, that the former networks can not provide. Additionally, the total number of wireless communication devices will escalate in such a manner that the already scarce available frequency bandwidth won’t be enough to pack the intended objectives. Cisco’s Annual Internet Report from 2018 predicts that by 2023 there will be nearly 30 billion devices capable of wireless communication. Due to the exponential expiation of both se
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Sigwele, Tshiamo, Prashant Pillai, and Yim Fun Hu. "On energy minimization of heterogeneos cloud radio access networks." 2016. http://hdl.handle.net/10454/11124.

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No<br>Next-generation 5G networks is the future of information networks and it will experience a tremendous growth in traffic. To meet such traffic demands, there is a necessity to increase the network capacity, which requires the deployment of ultra dense heterogeneous base stations (BSs). Nevertheless, BSs are very expensive and consume a significant amount of energy. Meanwhile, cloud radio access networks (C-RAN) has been proposed as an energy-efficient architecture that leverages the cloud computing technology where baseband processing is performed in the cloud. In addition, the BS sleepin
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(11390795), Mohammed Jaber Alam. "Strategies for Enhancing Performance and Quality of Service in Fifth-Generation and beyond Heterogeneous Mobile Wireless Networks." Thesis, 2024. https://figshare.com/articles/thesis/Strategies_for_Enhancing_Performance_and_Quality_of_Service_in_Fifth-Generation_and_beyond_Heterogeneous_Mobile_Wireless_Networks/29333384.

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<p dir="ltr">The transition to Fifth-Generation (5G) and beyond Heterogeneous Networks (HetNets) heralds a new era of wireless communication, promising higher data rates, lower latency, increased channel capacity, and substantial enhancements in Quality of Service (QoS) compared to existing Long-Term Evolution-Advanced (LTE-A) networks. As the demand for wireless connectivity continues to surge with the proliferation of smart devices and multimedia applications, current mobile networks face significant strain, necessitating the evolution towards more advanced network architectures. </p><p dir=
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Dhillon, Harpreet Singh. "Fundamentals of Heterogeneous Cellular Networks." Thesis, 2013. http://hdl.handle.net/2152/23296.

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The increasing complexity of heterogeneous cellular networks (HetNets) due to the irregular deployment of small cells demands significant rethinking in the way cellular networks are perceived, modeled and analyzed. In addition to threatening the relevance of classical models, this new network paradigm also raises questions regarding the feasibility of state-of-the-art simulation-based approach for system design. This dissertation proposes a fundamentally new approach based on random spatial models that is not only tractable but also captures current deployment trends fairly accurately. First,
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Lin, Yi Lan, and 林義嵐. "Community-Based M2M Framework using Smart/HetNet GW." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/60561071631249868858.

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碩士<br>國立清華大學<br>資訊工程學系<br>103<br>Consolidating a variety of IoT devices to compose the application for smart things has been applied in many fields recently, e.g., smart toy, smart museum, etc. Many works discussed about how to build a system to integrate things on network and how to improve some properties, e.g., scalability and latency. However, for real case application, the scale of devices, connection technology, and the location for deployment are very diverse. How to integrate various applications based on one system is an issue. In this thesis, we propose the community-based M2M framew
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Hung, Li-Chiao, and 洪莉喬. "Location-based Interference Mitigation and Spatial Grouping Techniques for Hetnet." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/62172512377692324861.

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碩士<br>國立中央大學<br>通訊工程學系<br>101<br>In this thesis, we proposed an angle of arrival (AOA) based beamforming structure for orthogonal frequency division multiple access (OFDMA)-based Hetnet systems. The proposed scheme has interference resistant capability without the needs in the estimation of the channel parameters and the calculation of beamforming weight vector for each subcarrier in OFDM-based systems. It can also reduce extra burden and delay generated from communication link between the femtocell and the central entity for using beamforming technology. Then, one can also use the obtained AO
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Chien, Kai-Chung, and 簡楷中. "Energy-Efficient Pricing and Resource Allocation Scheme in LTE-A HetNet." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/phy2p9.

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碩士<br>國立中山大學<br>資訊工程學系研究所<br>106<br>In recent years, due to the vigorous development of mobile devices, various network services are proposed. To meet the growing demand of network bandwidth, LTE-A adopts the HetNet concept to allow small cells to be deployed in hotspot regions to improve bandwidth and throughput. However, when the network traffic load is low, a large number of small-cell base stations may become almost idle, which waste energy. On the other hand, the issue of green communication attracts attention nowadays. Hence, the issue of energy efficiency becomes important. Moreover, te
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Heng-TienWu and 吳姮瑱. "Efficient Load-Aware Vertical Handoff for HetNet with Poisson-Point-Process Distributed Traffics." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/07858804110232434057.

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碩士<br>國立成功大學<br>電腦與通信工程研究所<br>103<br>Nowadays, the emerging hyper-dense heterogeneous network (HetNet) is an effective solution to building an easy-access wireless communication environment. In the hyper-dense HetNet, however, the inescapable handoff procedure is the key to its success. An effective handoff algorithm can not only achieve the goal of load-balancing but also enhance the overall system capacity. In this thesis, we proposed an efficient load-aware vertical handoff (VHO) algorithm for HetNets. With the aid of the system load information from the neighboring cells, the computational
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Zhang, Yongqiang. "Computation Offloading and Service Caching in Heterogeneous MEC Wireless Networks." Thesis, 2021. http://hdl.handle.net/10754/668910.

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Mobile edge computing (MEC) can dramatically promote the compu- tation capability and prolong the lifetime of mobile users by offloading computation- intensive tasks to edge cloud. In this thesis, a spatial-random two-tier heterogeneous network (HetNet) is modelled to feature random node distribution, where the small- cell base stations (SBSs) and the macro base stations (MBSs) are cascaded with resource-limited servers and resource-unlimited servers, respectively. Only a certain type of application services and finite number of offloaded tasks can be cached and processed in the resource-limit
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Ramos, Anderson Rocha. "Cellular Planning and Optimization for 4G and 5G Mobile Networks." Master's thesis, 2019. http://hdl.handle.net/10400.6/10065.

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Cellular planning and optimization of mobile heterogeneous networks has been a topic of study for several decades with a diversity of resources, such as analytical formulations and simulation software being employed to characterize different scenarios with the aim of improving system capacity. Furthermore, the world has now witnessed the birth of the first commercial 5G New Radio networks with a technology that was developed to ensure the delivery of much higher data rates with comparably lower levels of latency. In the challenging scenarios of 4G and beyond, Carrier Aggregation has been
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