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Dissertations / Theses on the topic '4G long-term evolution network'

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Published: 2 June 2025

Last updated: 31 July 2025

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1

Deaton, Juan Diego. "Enabling Dynamic Spectrum Access in 4G Networks and Beyond." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/77358.

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As early as 2014, mobile network operators' spectral capacity will be overwhelmed by the demand brought on by new devices and applications. To augment capacity and meet this demand, operators may choose to deploy a Dynamic Spectrum Access (DSA) overlay. Spectrum regulation is following suit, with regulators attempting to incorporate spectrum sharing through the design of spectrum access rules that support DSA. This dissertation explores the idea of DSA applied to Long Term Evolution Advanced (LTE+) networks. This idea is explored under functional, architectural, and spectrum policy aspects. Un

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2

Radhakrishna, Rakesh. "Cross Layer Design for Video Streaming over 4G Networks Using SVC." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/22657.

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Fourth Generation (4G) cellular technology Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) offers high data rate capabilities to mobile users; and, operators are trying to deliver a true mobile broadband experience over LTE networks. Mobile TV and Video on Demand (VoD) are expected to be the main revenue generators in the near future [36] and efficient video streaming over wireless is the key to enabling this. 3GPP recommends the use of H.264 baseline profiles for all video based services in Third Generation (3G) Universal Mobile Telecommunication System (UMTS) networks.

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Cogalan, Tezcan. "Dense wireless network design and evaluation : an aircraft cabin use case." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31493.

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One of the key requirements of fifth generation (5G) systems is having a connection to mobile networks without interruption at anytime and anywhere, which is also known as seamless connectivity. Nowadays, fourth generation (4G) systems, Long Term Evolution (LTE) and Long Term Evolution Advanced (LTE-A), are mature enough to provide connectivity to most terrestrial mobile users. However, for airborne mobile users, there is no connection that exists without interruption. According to the regulations, mobile connectivity for aircraft passengers can only be established when the altitude of the air

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Saeed, Asad, Habib Ur Rehman, and Muhammad Hassan Masood. "Performance Analysis and Comparison of Radio Propagation Models for Outdoor Environment in 4G LTE Network." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3241.

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The dissertation concerns about the path loss calculation of Radio Frequency (RF) propagation models for 4G Long Term Evolution (LTE) Network to prefer the best Radio Frequency propagation model. The radio propagation models are very significant while planning of any wireless communication system. A comparative analysis between radio propagation models e.g. SUI model, Okumura model, Cost 231 Hata Model, Cost 231-Walfisch Ikegami and Ericsson 9999 model that would be used for outdoor propagation in LTE. The comparison and performance analysis has been made by using different geological environm

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Garcia, Virgile. "Optimisation du partage de ressources pour les réseaux cellulaires auto-organisés." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00838793.

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Cette thèse s'intéresse aux problèmes d'allocations des ressources et de puissance dans les réseaux cellulaires de quatrième génération (4G). Pour faire face à la demande continuellement croissante en débit des utilisateurs mobiles, les opérateurs n'ont d'autre choix que de densifier leurs infrastructures d'accès au réseau radio (RAN), afin de maximiser l'utilisation de la bande passante disponible dans l'espace. Un des défis de cette nouvelle architecture est la coexistence de nombreuses cellules voisines et la gestion des interférences co-canal qu'elles génèrent entre elles. De telles contra

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Martín-Sacristán, Gandía David. "3GPP Long Term Evolution: Performance Analysis and Evolution towards 4G with Coordinated Multi-Point Transmission." Doctoral thesis, Universitat Politècnica de València, 2016. http://hdl.handle.net/10251/63261.

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[EN] In today's information society, there is a growing need to access data communication services ubiquitously, with mobility and increasingly higher data rates. This society's demand has motivated the development of the fourth generation of mobile communications (4G) and its evolution towards the fifth generation (5G). This development has required a revolution on the radio interface of the mobile communications systems, and, consequently, has significantly modified their capabilities and their radio resource management. This is the case of the technology known as Long Term Evolution (LTE) a

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7

Kanesan, Thavamaran. "The experimental design of radio-over-fibre system for 4G long term evolution." Thesis, Northumbria University, 2013. http://nrl.northumbria.ac.uk/13321/.

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The 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) is the potential key to meet the exponentially increasing demand of the mobile end users. The entire LTE network architecture and signal processing is carried out at the enhanced NodeB (eNB) level, hence the increased complexity and cost. Therefore, it is not efficient to deploy eNB for the purpose of extending the network coverage. As a solution, deployment of relay node (RN), with radio-over-fibre (RoF) acting as the interface between eNB and RN is proposed. Due to the high path loss and multipath fading, wireless interf

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Alotaibi, Sultan. "3GPP Long Term Evolution LTE Scheduling." Thesis, University of North Texas, 2013. https://digital.library.unt.edu/ark:/67531/metadc490046/.

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Future generation cellular networks are expected to deliver an omnipresent broadband access network for an endlessly increasing number of subscribers. Long term Evolution (LTE) represents a significant milestone towards wireless networks known as 4G cellular networks. A key feature of LTE is the implementation of enhanced Radio Resource Management (RRM) mechanism to improve the system performance. The structure of LTE networks was simplified by diminishing the number of the nodes of the core network. Also, the design of the radio protocol architecture is quite unique. In order to achieve high

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9

Zhang, Liang. "Network Capacity, Coverage Estimation and Frequency Planning of 3GPP Long Term Evolution." Thesis, Linköpings universitet, Reglerteknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-61273.

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The recent increase of mobile data usage and emergence of new applications such as Online Gaming, mobile TV, Web 2.0, Streaming Contents have greatly motivated the 3rd Generation Partnership Project (3GPP) to work on the Long Term Evolution (LTE). The LTE is the latest standard in the mobile network technology tree. It inherits and develops the GSM/EDGE and UMTS/HSPA network technologies and is a step toward the 4th generation (4G) of radio technologies designed to optimize the capacity and speed of 3G mobile communication networks. In this thesis, the LTE system capacity and coverage are inve

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Leyva, Mayorga Israel. "On reliable and energy efficient massive wireless communications: the road to 5G." Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/115484.

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La quinta generación de redes móviles (5G) se encuentra a la vuelta de la esquina. Se espera provea de beneficios extraordinarios a la población y que resuelva la mayoría de los problemas de las redes 4G actuales. El éxito de 5G, cuya primera fase de estandarización ha sido completada, depende de tres pilares: comunicaciones tipo-máquina masivas, banda ancha móvil mejorada y comunicaciones ultra fiables y de baja latencia (mMTC, eMBB y URLLC, respectivamente). En esta tesis nos enfocamos en el primer pilar de 5G, mMTC, pero también proveemos una solución para lograr eMBB en escenarios de distr

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Hamdoun, Hassan. "Practical network coding schemes for energy efficient long term evolution radio access networks." Thesis, Swansea University, 2013. https://cronfa.swan.ac.uk/Record/cronfa42828.

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Guo, Jianding. "Theoretical research on graph coloring : Application to resource allocation in device-to-device 4G radio system (LTE)." Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCA007/document.

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Le problème de coloration de graphe est un problème NP-complet particulièrement étudié, qui permet de modéliser de problèmes dans des domaines variés. Dans cette thèse, de nouveaux algorithmes exacts basés sur une étude de la structure du graphe sont proposés. Ce travail s'appuie sur l'algorithme « Total solutions Exact graph Coloring » (TexaCol) qui construit toutes les solutions en exploitant l'ensemble des cliques d'un graphe. Deux algorithmes exacts, « Partial best solutions Exact graph Coloring » (PexaCol) et « All best solutions Exact graph Coloring » (AexaCol), sont présentés ici pour c

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Alrowili, Mohammed F. H. "Capacity Enhancement Approaches for Long Term Evolution networks: Capacity Enhancement-Inspired Self-Organized Networking to Enhance Capacity and Fairness of Traffic in Long Term Evolution Networks by Utilising Dynamic Mobile Base-Stations." Thesis, University of Bradford, 2018. http://hdl.handle.net/10454/17322.

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The long-term evolution (LTE) network has been proposed to provide better network capacity than the earlier 3G network. Driven by the market, the conventional LTE (3G) network standard could not achieve the expectations of the international mobile telecommunications advanced (IMT-Advanced) standard. To satisfy this gap, the LTE-Advanced was introduced with additional network functionalities to meet up with the IMT-Advanced Standard. In addition, due to the need to minimize operational expenditure (OPEX) and reduce human interventions, the wireless cellular networks are required to be self-awar

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Sawant, Uttara. "Evaluation of Call Mobility on Network Productivity in Long Term Evolution Advanced (LTE-A) Femtocells." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc1062893/.

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The demand for higher data rates for indoor and cell-edge users led to evolution of small cells. LTE femtocells, one of the small cell categories, are low-power low-cost mobile base stations, which are deployed within the coverage area of the traditional macro base station. The cross-tier and co-tier interferences occur only when the macrocell and femtocell share the same frequency channels. Open access (OSG), closed access (CSG), and hybrid access are the three existing access-control methods that decide users' connectivity to the femtocell access point (FAP). We define a network performance

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Li, Y. "Resource allocation for coordinated multipoint joint transmission system and received signal strength based positioning in long term evolution network." Thesis, University of Liverpool, 2017. http://livrepository.liverpool.ac.uk/3009494/.

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The Long-Term Evolution Advanced (LTE-A) system are expected to provide high speed and high quality services, which are supported by emerging technologies such as Coordinated Multipoint (CoMP) transmission and reception. Dynamic resource allocation plays a vital role in LTE-A design and planning, which is investigated in this thesis. In addition, Received Signal Strength (RSS) based positioning is also investigated in orthogonal frequency division multiplexing (OFDM) based wireless networks, which is based on an industry project. In the first contribution, a physical resource blocks (PRB) allo

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Izario, Bruno Rodrigues Ferraz. "Comparação do sistema LTE operando na faixa de 2,5 GHZ e 700 MHZ." Universidade Presbiteriana Mackenzie, 2015. http://tede.mackenzie.br/jspui/handle/tede/1461.

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Made available in DSpace on 2016-03-15T19:37:56Z (GMT). No. of bitstreams: 1 BRUNO FERRAZ IZARIO.pdf: 4620887 bytes, checksum: bd842cabfdadb0bcb55e0ea548c9fba5 (MD5) Previous issue date: 2015-08-28<br>The Long Term Evolution (LTE) system belongs to the 4th generation phone system. It is standardized by 3GPP and utilizes several technologies to improve the performance of data transmission. This permits flexibility for mobile devices, which enables a high data rate in the range of 50 Mbps to 100 Mbps, and admit access to various multimedia services. The study presents the results of deploying

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Grabner, Mitchell John James. "Practical Robust MIMO OFDM Communication System for High-Speed Mobile Communication." Thesis, University of North Texas, 2015. https://digital.library.unt.edu/ark:/67531/metadc799501/.

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This thesis presents the design of a communication system (PRCS) which improves on all aspects of the current state of the art 4G communication system Long Term Evolution (LTE) including peak to average power ratio (PAPR), data reliability, spectral efficiency and complexity using the most recent state of the art research in the field combined with novel implementations. This research is relevant and important to the field of electrical and communication engineering because it provides benefits to consumers in the form of more reliable data with higher speeds as well as a reduced burden on har

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Petropoulos, Ioannis. "Development of an antenna system for a relay-based wireless network : simulation and measurement of antenna systems for relay-based wireless network, covering the backhaul and access links and applying beam forming technology." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5770.

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The proliferation of modern wireless networks increases demand for high capacity and throughput in order to provide faster, more robust, efficient and broadband services to end users. Mobile WiMAX and LTE are examples of such networks in which for some cases they have exposed limited connectivity due to harsh environment. Relay stations are preferred to overcome problems of weak or no access for such network devices, that are placed in specific positions to maintain high quality of data transfer at low cost and provide the required connectivity anywhere anytime. These stations should be equipp

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Jin, Yifei. "Feasibility Study of Vehicular Teleoperation over Cellular Network in Urban Scenario." Thesis, KTH, Nätverk och systemteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-220444.

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With the continuous progress on autonomous vehicle and remote drivingtechniques, connection quality demands are changing compared withconventional quality of service. Vehicle to everything communication, asthe connectivity basis for these applications, has been built up on LongTerm Evolution basis, but due to various ethical and environmental issues,few implementations have been made in reality. Therefore simulation approachesare believed to provide valuable insights.To fully model an LTE vehicular network, in this work we first providea comparison study to select the preferable LTE simulator.

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Bai, Hao. "Machine learning assisted probabilistic prediction of long-term fatigue damage and vibration reduction of wind turbine tower using active damping system." Thesis, Normandie, 2021. http://www.theses.fr/2021NORMIR01.

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Cette thèse est consacrée au développement d'un système d'amortissement actif pour la réduction des vibrations du mât d'éoliennes en cas de vent avec rafales et de vent avec turbulence. La présence de vibrations entraîne souvent soit une déflexion ultime au sommet du mât d'éolienne, soit une défaillance due à la fatigue du matériau près du bas du mât d'éolienne. De plus, étant donné la nature aléatoire de l'état du vent, il est indispensable d'examiner ce problème d'un point de vue probabiliste. Dans ce travail, un cadre probabiliste d'analyse de la fatigue est développé et amélioré en utilisa

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Amate, Ahmed Mohammed. "Device-device communication and multihop transmission for future cellular networks." Thesis, University of Hertfordshire, 2015. http://hdl.handle.net/2299/16309.

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The next generation wireless networks i.e. 5G aim to provide multi-Gbps data traffic, in order to satisfy the increasing demand for high-definition video, among other high data rate services, as well as the exponential growth in mobile subscribers. To achieve this dramatic increase in data rates, current research is focused on improving the capacity of current 4G network standards, based on Long Term Evolution (LTE), before radical changes are exploited which could include acquiring additional/new spectrum. The LTE network has a reuse factor of one; hence neighbouring cells/sectors use the sam

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Melo, Yuri Victor Lima de. "Controle de potÃncia e estratÃgias de eficiÃncia energÃtica para comunicaÃÃes D2D subjacentes redes celulares." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14911.

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Ericsson Brasil<br>Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>Em um mundo onde as pessoas contam com smartphone, smartwatch, tablet e outros dispositivos para mantÃ-las conectadas onde quer que vÃo, t odos esperam que seus aplicativos sejam executados sem problemas, tais como cham adas abandonadas, download lento e vÃdeos com saltos. Neste contexto, comunicaÃÃo dispositivo-a-dispositivo ( do inglÃs, Device-to-Device (D2D)) constitui uma tecnologia promissora, pois Ã um tipo de comun icaÃÃo direta e utiliza baixa potÃncia entre dispositivos prÃximos, permitindo-se desv iar

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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.

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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 all

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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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Nasri, Ridha. "Paramétrage Dynamique et Optimisation Automatique des Réseaux Mobiles 3G et 3G+." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2009. http://tel.archives-ouvertes.fr/tel-00494190.

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La télécommunication radio mobile connait actuellement une évolution importante en termes de diversité de technologies et de services fournis à l'utilisateur final. Il apparait que cette diversité complexifie les réseaux cellulaires et les opérations d'optimisation manuelle du paramétrage deviennent de plus en plus compliquées et couteuses. Par conséquent, les couts d'exploitation du réseau augmentent corrélativement pour les operateurs. Il est donc essentiel de simplifier et d'automatiser ces taches, ce qui permettra de réduire les moyens consacrés à l'optimisation manuelle des réseaux. De pl

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Mungara, Ratheesh Kumar. "System-level performance of interference-aware spatial frequency reuse." Doctoral thesis, Universitat Pompeu Fabra, 2016. http://hdl.handle.net/10803/400869.

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Spatial frequency reuse is a long-established approach for enhancing the capacity of wireless systems through increased spectral efficiency (bits per second per unit bandwidth). The future 5th generation of wireless systems is expected to incorporate various forms of frequency reuse. This includes multiple-input multiple-output (MIMO) communication enabling frequency reuse across antennas, device-to-device (D2D)-based densification allowing spectrum reuse across direct communication links, and full duplexing utilizing the same spectrum for communication in the transmit and receive directions.

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Vaz, Filipe José Antunes Silva Moreno. "Technical, financial and environmental evaluation of 4G long term evolution: advanced with femtocell base stations." Master's thesis, 2012. http://hdl.handle.net/10071/7979.

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Recent advances in mobile communication technology have allowed for considerable growth both in traffic and user numbers. However, in order to maintain acceptable quality of experience and service levels with increasing network capacity requirements, a mobile communications operator is challenged with high investment costs and high operating costs. Cost effectiveness and environmental sustainability are two major factors a mobile telecommunications operator must take into account in order to maintain its network planning techniques ready for the accelerated growth of traffic in futu

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CHEN, REN-JIE, and 陳仁傑. "Samll cell Antenna Design for 4G Long-Term-Evolution." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/p28282.

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碩士<br>正修科技大學<br>電子工程研究所<br>107<br>The subject of this thesis is the small cell antenna design for 4G LTE. The dipole antenna is designed as the main structure, and the antennas are designed for the two frequency bands of 700/900MHz and 1800/2100/2600MHz. The dual-band properties of the dipole antenna are presented and experimentally studied. For 1800/2100/2600MHz band, the antenna is designed operating 1800/2600MHz. Through adjusting the antenna parameters, the bands will cover 2100MHz band and the antenna can be achieved tri-band operating. Finally, the low-frequency band 700/900MHz and high-

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Huang, Chi-Lin, and 黃棋麟. "MINIATURIZED MULTI-BAND ANTENNAS SUITE FOR THE LONG TERM EVOLUTION SYSTEM (4G)." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/38250129252698901062.

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碩士<br>國立交通大學<br>電機學院電信學程<br>102<br>The paper studies and proposes two designs of antennas. One is the design of the multi band CBCPW (conductor-backed coplanar waveguide) antenna and another design is multi-band PIFA (Planar Inverted-F Antennas). The first proposal antenna is designed to the triple-bands miniaturized antenna, which cover 615MHz to 808MHz, 1520MHz to 2049MHz and 2390MHz to 2790MHz frequency bands of the LTE system specification. The antenna structure is feed by the conductor-backed coplanar waveguide structure. We design the main structure of the antenna to support the lower f

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Cheng, Shao-Chun, and 鄭紹峻. "Negative Impedance Converter of Mobile Phone Antenna Minimization for 4G Long Term Evolution." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/47781632829754082631.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>103<br>The present work aims to address the issues of negative impedance converter circuit and frequency comparator. With respect to the negative impedance converter circuit, in recent years; Antenna Miniaturization has been widely used in the UHF (Ultra high frequency, UHF). However, if you use the passive foster matching network to do the impedance matching, the effective bandwidth of the antenna (efficiency-bandwidth) will be limited. To tackle this problem, the negative impedance converter was integrated and the results of such integration are divided into two pa

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Liu, Pang-Cheng, and 劉邦丞. "Performance of CS Fallback for Long Term Evolution Mobile Network." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/97036332411953248808.

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碩士<br>國立交通大學<br>網路工程研究所<br>102<br>When a mobile operator migrates its network from the 3rd Generation (3G) system to Long Term Evolution (LTE), both 3G and LTE will co-exist for a period of time. Since the 3G Circuit-Switched (CS) voice mechanism is more mature and available than that for LTE Voice over Internet Protocol (VoIP), the operator may consider CS fallback as a solution to provide reliable voice calls. According to the 3rd Generation Partnership Project (3GPP) CS fallback procedure, when a mobile user in the LTE network has an incoming or an outgoing call, the User Equipment (UE) fal

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"Long Term Evolution Backhaul over Ethernet Passive Optical Network: An Analysis Study." Master's thesis, 2014. http://hdl.handle.net/2286/R.I.26850.

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abstract: LTE (Long Term Evolution) represents an emerging technology that will change how service providers backhaul user traffic to their infrastructure over IP networks. To support growing mobile bandwidth demand, an EPON backhaul infrastructure will make possible realtime high bandwidth applications. LTE backhaul planning and deployment scenarios are important factors to network success. In this thesis, we are going to study the effect of LTE backhaul on Optical network, in an attempt to interoperate Fiber and Wireless networks. This project is based on traffic forecast for the LTE netwo

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Kao, Ming-Der, and 高明德. "A STUDY ON RADIO NETWORK PLANNING OF TIME DIVISION LONG TERM EVOLUTION." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/47886055399956977009.

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碩士<br>大同大學<br>通訊工程研究所<br>100<br>TD-LTE system is one of standards of the next generation mobile network. In the thesis, the development of the TD-LTE system, the network architecture, the technology, and so on, are introduced. And then, the TD-LTE radio network planning methods, including the network coverage and the network capacity are discussed. Finally, the simulation of the TD-LTE radio network planning is demonstrated.

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Wajdi, Muhammad Farid, and Muhammad Farid Wajdi. "Study on Load Balancing Mechanism in Long Term Evolution (LTE) with Software Defined Network (SDN)." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/8hf6jf.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>106<br>The growth of smart phones and tablet users followed the development of the mobile network. Challenge on mobile network in the future is to increase the throughput in support of network traffic. The number of mobile devices will surpass the total population of the word. The popular mobile packet core architecture in use today, the Long Term Evolution (LTE). The LTE (both radio and core network evolution) is now on the market. The main requirements for the new access network are high spectral efficiency, high peak data rates, short round trip time as well as fl

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Kitana, Asem. "Impact of mobile botnet on long term evolution networks: a distributed denial of service attack perspective." Thesis, 2021. http://hdl.handle.net/1828/12817.

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In recent years, the advent of Long Term Evolution (LTE) technology as a prominent component of 4G networks and future 5G networks, has paved the way for fast and new mobile web access and application services. With these advantages come some security concerns in terms of attacks that can be launched on such networks. This thesis focuses on the impact of the mobile botnet on LTE networks by implementing a mobile botnet architecture that initiates a Distributed Denial of Service (DDoS) attack. First, in the quest of understanding the mobile botnet behavior, a correlation between the mobile bo

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Jermyn, Jill Louise. "Discovering Network Control Vulnerabilities and Policies in Evolving Networks." Thesis, 2017. https://doi.org/10.7916/D8R5030T.

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The range and number of new applications and services are growing at an unprecedented rate. Computer networks need to be able to provide connectivity for these services and meet their constantly changing demands. This requires not only support of new network protocols and security requirements, but often architectural redesigns for long-term improvements to efficiency, speed, throughput, cost, and security. Networks are now facing a drastic increase in size and are required to carry a constantly growing amount of heterogeneous traffic. Unfortunately such dynamism greatly complicates security o

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BARTOLI, GIULIO. "Interference in Wireless Communication Systems: Mitigation and Exploiting." Doctoral thesis, 2014. http://hdl.handle.net/2158/851699.

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The opportunity to transfer information from a location to another has always held a position of capital importance for the mankind. The relevance of telecommunications is uncontested due to countless reasons, spanning from philosophical to tactical. The increasing demand for high data rate services is the driving force of the scientific research in this area. In order to provide the final user with a fast and reliable service, many technical challenges have to be completed. For what concerns the physical layer of communications, increasing the data rate usually involves a detrimental effect o

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38

El-murtadi, Suleiman Kais. "Interactions Study of Self Optimizing Schemes in LTE Femtocell Networks." Thesis, 2012. http://hdl.handle.net/1974/7683.

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One of the enabling technologies for Long Term Evolution (LTE) deployments is the femtocell technology. By having femtocells deployed indoors and closer to the user, high data rate services can be provided efficiently. These femtocells are expected to be depolyed in large numbers which raises many technical challenges including the handover management. In fact, managing handovers in femtocell environments, with the conventional manual adjustment techniques, is almost impossible to keep pace with in such a rapidly growing femtocell environment. Therefore, doing this automatically by implementin

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Mané, Ansumane. "Optimization of the methodology of configuration of mobile communication networks." Master's thesis, 2018. http://hdl.handle.net/10071/18750.

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The mobile communication network has been growing quickly, and the mobile network maintenance is becoming more complex, in performance, network coverage, energy, time consuming and expensive. The telecommunication service provider and mobile network telecommunication operator worries to what is the better methodology to optimizing a mobile network configuration and to improve the most efficient operation and functionality, to increase a superior performance in technical aspect (Create, and integrate new network planning in hardware and software level), economic aspect (cost reduction in mainte

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40

Mondal, Santanu. "Packet Scheduling on the Wireless Channel." Thesis, 2014. http://etd.iisc.ac.in/handle/2005/2880.

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Scheduling has always been an indispensable part of resource allocation in wireless networks. Accurate information about channel-state is assumed as a modeling simplification. However, in a real-life network ,e.g., Long Term Evolution(LTE) or IEEE 802.16e WiMAX, the channel-state information feedback to the transmitter can have uncertainty. The primary reason being that although resource allocation is done at the finer granularity of a Physical Resource Block (PRB), channel-state information is still feedback at the coarser granularity of a sub band, which is a group of PRBs. This is done to r

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41

Mondal, Santanu. "Packet Scheduling on the Wireless Channel." Thesis, 2014. http://hdl.handle.net/2005/2880.

Full text

Abstract:

Scheduling has always been an indispensable part of resource allocation in wireless networks. Accurate information about channel-state is assumed as a modeling simplification. However, in a real-life network ,e.g., Long Term Evolution(LTE) or IEEE 802.16e WiMAX, the channel-state information feedback to the transmitter can have uncertainty. The primary reason being that although resource allocation is done at the finer granularity of a Physical Resource Block (PRB), channel-state information is still feedback at the coarser granularity of a sub band, which is a group of PRBs. This is done to r

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