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Dissertations / Theses on the topic '5G users'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Atra, Kebede Tesema. "Design of ultra dense passive optical network to support high number of end users." Electronic Thesis or Diss., Institut polytechnique de Paris, 2021. http://www.theses.fr/2021IPPAT010.

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Dans cette thèse, nous étudions des modulateurs à électroabsorption (EAM) en réflexion, intégrés de manière monolithique sur InP avec des amplificateurs optiques à semi-conducteurs (SOA), pour réaliser des transmetteurs indépendants de la longueur d'onde (achromatiques). Ces composants sont conçus pour des applications dans les réseaux d'accès, qui nécessitent un déploiement dense de transmetteurs-récepteurs optiques à faible coût. Les composants sont basés sur des zones actives à multi-puits quantiques GaInAsP/InP (MQW) et ont été fabriqués par un technologie à guides d’onde enterrés (semi-in

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Ginige, N. (Nipuni). "Admission control in 5G networks for the coexistence of eMBB-URLLC users." Master's thesis, University of Oulu, 2019. http://jultika.oulu.fi/Record/nbnfioulu-201910223007.

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Abstract. In this thesis, we have considered the problem of admission control in 5G networks where enhanced mobile broadband (eMBB) users and ultra-reliable low-latency communication (URLLC) users coexist. Our aim is to maximize the number of admitted eMBB users to the system with a guaranteed data rate, while allocating power, bandwidth and beamforming directions to all URLLC users whose latency and reliability requirements are always guaranteed. We have considered the downlink of a multiple-input single-output (MISO) network. We have considered orthogonal spectrum sharing between these tw

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Lysenko, Julia Vladimirovna, and Юлія Володимирівна Лисенко. "5G-technology: social advantaged and threats." Thesis, National Aviation University, 2021. https://er.nau.edu.ua/handle/NAU/51667.

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References: 1. Understanding 5G [Electronicresource]. − Retrievedfrom:http://www. 2.Perspekty`vy` rozvy`tku 5G zv’yazku.Olejnikova A.V., Nurtaj M.D., Shmanov N.M. Suchasnimaterialy`, texnika i texnologiyi. [Перспективи розвитку 5G зв’язку. Олейнікова А.В., Нуртай М.Д., Шманов Н.М. Сучасні матеріали, техніка і технології.] 2015. № 2 (2). С. 233- 2<br>The development of information technology in the modern world is one of the most important factors that significantly affects the pace and achievement of scientific and technological progress. All spheres of human activity are considered only d

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Lutnaes, Carl. "Beamforming in 5G mm-wave radionetworks : Importance of frequency multiplexing for users in urban macro environments." Thesis, Uppsala universitet, Signaler och system, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-406129.

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5G brings a few key technological improvements compared to previous generations in telecommunications. These include, but are not limited to, greater speeds, increased capacity and lower latency. These improvements are in part due to using high band frequencies, where increased capacity is found. By advancements in various technologies, mobile broadband traffic has become increasingly chatty, i.e. more small packets are being sent. From a capacity standpoint this characteristic poses a challenge for early 5G millimeter-wave advanced antenna systems. This thesis investigates if network performa

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Zaman, Nasir. "User Deployed Hot-Spots in Rurual 5G Networks." Thesis, Linköpings universitet, Programvara och system, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-161766.

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Cellular network expansion in rural areas has been traditionally slower than in dense urban areas. Area coverage in rural areas is fundamentally limited by the deployment cost for the operator. The 5th generation new radio (5G NR) network is designed to deliver unprecedented levels of capacity, high data rates, low latency and high reliability anytime and anywhere. The focus of 5G NR development is on relatively short-range communication using high frequency bands (e.g. mmWave-length) where lots of spectrum is available. For extremely long-range communication (e.g. in rural areas) high frequen

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ALONZO, Mario. "Distributed MIMO Systems for 5G and Beyond-5G Wireless Networks." Doctoral thesis, Università degli studi di Cassino, 2021. http://hdl.handle.net/11580/83801.

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Massive Multiple-Input-Multiple-Output (MIMO) is a recent technlogy that will be exploited for 5G and beyond-5G wireless network due to the constraints given by the future wireless networks, such as low latency and high spectral efficiency. In this thesis, MIMO systems have been taken into account in order to study two different network architectures. The former is called Cell-Free (CF), and it has been studied at millimeter Wave (mmWave) and microwave frequencies, and the latter is called Distributed Multiple Input Multiple Output (D-MIMO) for factory automation. The first chapter of this the

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Johansson, Victor. "Enhancing user satisfaction in 5G networks using Network Coding." Thesis, KTH, Radio Systems Laboratory (RS Lab), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-171210.

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Network data rates are growing rapidly. The data rates provided to the customers by their network providers vary from Mbps to Gbps. However, rarely do users get the promised peak throughput. In cellular networks, network conditions change based on obstacles, weather conditions between the client and the base stations, and even the movement of objects and people. As a result of the changes in the radio link, the data transfer rate can change rapidly, hence devices needs to adjust their communications based on the currently available data rate. The Transmission Control Protocol (TCP) is widely u

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Saffar, Illyyne. "Machine learning to infer user behavior in 5G autonomic networks." Thesis, Rennes 1, 2020. http://www.theses.fr/2020REN1S039.

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L'idée développée dans cette thèse est d’utiliser le Machine Learning Deep Learning et l’analyse de données radio 3GPP pour estimer et prédire le comportement d'un utilisateur, en termes d'habitudes et de préférence d'usage des services mobiles d’un réseau 5G. Le caractère multidimensionnel du comportement de l'utilisateur rend son estimation complexe et reste actuellement un défi. On a donc étudié son estimation sous une approche innovante au regard de l'état de l'art. On a proposé de la réaliser au sein d'un système unifié qui estime en parallèle chaque dimension du comportement. En utilisan

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Sjöstrand, Johan. "Extension of a 5G Ran Simulator by Modeling User Equipment." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-161341.

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With the upcoming release of the fifth generation of cellular networks, 5G, it is expected to be a lot more connected devices. As a consequence, the importance of the capacity of the networks is increased, especially the radio access network (RAN), which will be changed a lot from previous generations. The best method to ensure a RAN has enough capacity for its targeted area is a simulation, and therefore, there is a demand for such a simulator. The development of a simulator for RAN started last year in another thesis with the possibility to model nodes, links, and set loads. In this thesis,

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Matoussi, Salma. "User-Centric Slicing with Functional Splits in 5G Cloud-RAN." Electronic Thesis or Diss., Sorbonne université, 2021. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2021SORUS004.pdf.

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Le réseau d’accès radio (RAN) 5G vise à faire évoluer de nouvelles technologies couvrant l’infrastructure Cloud, les techniques de virtualisation et le réseau défini par logiciel (SDN). Des solutions avancées sont introduites pour répartir les fonctions du réseau d’accès radio entre des emplacements centralisés et distribués (découpage fonctionnel) afin d’améliorer la flexibilité du RAN. Cependant, l’une des préoccupations majeures est d’allouer efficacement les ressources RAN, tout en prenant en compte les exigences hétérogènes des services 5G. Dans cette thèse, nous abordons la problématique

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Zhao, Kun. "Mobile Antenna Systems for 4G and 5G Applications with User Body Interaction." Doctoral thesis, KTH, Elektroteknisk teori och konstruktion, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-215266.

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In the thesis, the user body effect on antennas in a mobile terminal is discussed. In order to overcome the degradation of Multiple-Input Multiple-Output (MIMO) performance due to the user body effect, a quad-elements MIMO antenna array which can mitigate the body effect through an adaptive antenna switching method is introduced for 4G mobile terminals. In addition, various bezel MIMO antennas that are robust to the impedance mismatching caused by the user effect have also been presented. The study of user body effect is later extended to frequency bands at 15 GHz and 28 GHz for future 5G comm

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Hagernäs, Patrik. "5G user satisfaction enabled by FASP : Evaluating the performance of Aspera's FASP." Thesis, KTH, Radio Systems Laboratory (RS Lab), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-172760.

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With Ericsson’s goal to have optimal user experience at 5G’s 2020 release, it is very important to optimize transport protocols and techniques to manage the increasing amount of data traffic. Additionally, it will be important to manage handovers between very high speed 5G networks and older networks. Today most of the traffic is video on demand and the amount of this kind of traffic is expected to increase. Moreover, the current amount of data traffic will increase by an order of magnitude over the next few years. This thesis focuses on radio access networks and the difficulties they face in

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Chataut, Robin. "Optimization of Massive MIMO Systems for 5G Networks." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1707262/.

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In the first part of the dissertation, we provide an extensive overview of sub-6 GHz wireless access technology known as massive multiple-input multiple-output (MIMO) systems, highlighting its benefits, deployment challenges, and the key enabling technologies envisaged for 5G networks. We investigate the fundamental issues that degrade the performance of massive MIMO systems such as pilot contamination, precoding, user scheduling, and signal detection. In the second part, we optimize the performance of the massive MIMO system by proposing several algorithms, system designs, and hardware archit

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Zhao, Yu. "Channel Reconstruction for High-Rank User Equipment." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-256064.

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In a 5 Generation massive Multiple Input Multiple Output radio network, the Channel State Information is playing a central role in the algorithm design and system evaluation. However, Acquisition of Channel State Information consumes system resources (e.g. time, frequency) which in turn decrease the link utilization, i.e. fewer resources left for actual data transmission. This problem is more apparent in a scenario when User Equipment terminals have multi-antennas and it would be beneficial to obtain Channel State Information between Base Station and different User Equipment antennas e.g. for

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Tian, Yue. "Capacity optimisation techniques for multi-user interface mitigation in 5G and beyond wireless networks." Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.715836.

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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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Kokshoorn, Matthew Luke. "Channel Estimation and Beam Training for Millimeter Wave Mobile Networks: Point-to-Point, Multi-User, and Multi-Cell." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/18082.

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The global shortage of microwave bandwidth has become a critical issue that may inhibit the growth of mobile networks needing to support content-rich applications. For this reason, the underutilized millimeter wave (mmWave) spectrum has attracted significant attention as a medium to support next-generation mobile. Although this spectrum has an abundance of available bandwidth, mmWave wave frequencies also have propagation characteristics that make digital communication very challenging. Due to the signals atmospheric, reflection, and penetration losses, this spectrum suffers from much greater

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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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Fantuz, Mitchell. "Multi-User Detection of Overloaded Systems with Low-Density Spreading." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39600.

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Future wireless networks will have applications that require many devices to be connected to the network. Non-orthogonal multiple access (NOMA) is a promising multiple access scheme that allows more users to simultaneously transmit in a common channel than orthogonal signaling techniques. This overloading allows for high spectral efficiencies which can support the high demand for wireless access. One notable NOMA scheme is low-density spreading (LDS), which is a code domain multiple access scheme. Low density spreading operates like code division multiple access (CDMA) in the sense that users

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Hameed, Khalid W. H. "Multiuser Multi Input Single Output (MU-MISO) Beamforming for 5G Wireless and Mobile Networks. A Road Map for Fast and Low Complexity User Selection, Beamforming Scheme Through a MU-MISO for 5G Wireless and Mobile Networks." Thesis, University of Bradford, 2019. http://hdl.handle.net/10454/18445.

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Multi-User Multi-Input Multi-Output (MU-MIMO) systems are considered to be the sustainable technologies of the current and future of the upcoming wireless and mobile networks generations. The perspectives of these technologies under several scenarios is the focus of the present thesis. The initial system model covers the MU-MIMO, especially in the massive form that is considered to be the promising ideas and pillars of the 5G network. It is observed that the optimal number of users should be served in the time-frequency resource even though the maximum limitation of the MU-MIMO is governed

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Sacoto, Cabrera Erwin. "Análisis basado en teoría de juegos de modelos de negocio de operadores móviles virtuales en redes 4G y 5G." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/158595.

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[ES] Esta tesis se ha desarrollado dentro del marco de la línea de investigación de Economía y Regulación de las Telecomunicaciones. En el programa de Doctorado de Telecomunicaciones por la Universitat Politècnica de València. Como parte del proceso de investigación se participó en los siguientes proyectos de investigación: Plataforma de servicios para ciudades inteligentes con redes M2M densas (TIN2013-47272-C2-1-R), Entrepreneurship in Heterogeneous Wireless Networks (COHWAN, TIN2010-21378 C02-02) y ATLAS-Dynamic network slicing in 5G Radio Access. Así como, se realizó una estancia doctoral

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Filice, Francesco. "Solutions innovantes d'antennes en bande Ku- et Ka- en technologie d’impression 3-D pour la réalisation des réseaux phasés visant des applications 5G et des communications mobiles par satellite." Thesis, Université Côte d'Azur, 2020. http://www.theses.fr/2020COAZ4023.

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L'utilisation exponentielle d’applications mobiles entraîne une demande en constante croissance pour des débits de données de plus en plus élevés associées à des solutions de télécommunications mobiles à faible coût. Alors que les réseaux 5G en sont encore à leur début, les télécommunications mobiles par satellite (Sat-Com-On-The-Move) peuvent jouer un rôle central dans cette problématique. La bande passante disponible dans les bandes de fréquences Ku- (10,75-14,5 GHz) et Ka- (18-31 GHz) pour ces applications peut être exploitée afin de fournir une connexion internet globale à haut débit et fa

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Ramezani, Khosrow. "Coordinated Robust Authentication In Wireless Networks." Thesis, Griffith University, 2016. http://hdl.handle.net/10072/367051.

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Rapid convergence of heterogeneous wireless communication technologies such as Wireless Local Area Networks (WLAN), 4G: LTE/LTE-Advanced Mobile Broadband, 5G and Worldwide Interoperability for Microwave Access (WiMAX), attract new opportunities for ubiquitous connectivity enabling collaborative usage. Hence, it is predicted that the ever-increasing use of wireless Internet demands a significant increase in wireless broadband throughput. However, to maintain reliable and seamless connectivity wireless devices entail simultaneous multi-gateway connections. Therefore, emerging technologies should

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Chi, Ting-Hui, and 紀廷暉. "Efficient Live Video Multicast Algorithm for Dynamic Users via Segment Routing in 5G Networks." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/nv7tuh.

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碩士<br>國立清華大學<br>資訊工程學系所<br>106<br>Live video streaming applications are expected to proliferate very rapidly in the next generation network, i.e., 5G networks. To efficiently serve all users watching the same live video in 5G networks, the multicast technique plays an important role in providing scalable and high performance services. Software-Defined Networking (SDN), contained in 5G networks, further facilitates the development of multicast techniques due to its flexibility of updating routing rules. However, few of conventional multicast mechanisms in SDN take into account the rule update o

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Chen, Hung-Ru, and 陳弘儒. "Enhanced Independence among NOMA users through Machine Learning Classification for 5G Downlink IFoF Network." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/n6aehj.

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碩士<br>國立清華大學<br>光電工程研究所<br>107<br>The concept of Non-Orthogonal Multiple Access (NOMA) will become one of the wireless access technologies for 5G after 2020. By allocating multiple Orthogonal Frequency-Division Multiplexing (OFDM) with different powers and superimposing them to form a NOMA which is delivered to multiple base stations, the spectrum efficiency of the system will be largely improved. The receiver used to apply the Successive Interference Cancellation (SIC) for NOMA demodulation, but the base station closest to the transmitter must conduct the demodulation by relying on messages f

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WANG, CHIH, and 王植. "User-grouping Techniques for Beam-domain Based 5G Systems." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/09923754987663751170.

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碩士<br>國立中正大學<br>通訊工程研究所<br>104<br>With the development of 4G (4th generation) systems, 5G (5th generation) sys-tems have come into focus. The technology of large-scale antenna is one of the most popular research areas in 5G systems. When a large number of antenna-equipped eNB serves a lot of users simultaneously, there are some problems: (1) Per anten-na-channel signal processing needs a large number of pilots for channel estimation, and frequency selective of the channel causes performance degradation. (2) High-complexity in high-order MU-MIMO processing. BgDMA (Beam-group Division Multiple A

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YOU, WEI-FANG, and 游惟芳. "Multi-user Precoding Techniques for Beam-domain Based 5G Systems." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/00621694660443067914.

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碩士<br>國立中正大學<br>通訊工程研究所<br>104<br>With the rapid development of communication technologies, 4G (4th generation) system has been widely used, and 5G (5th generation) system is coming. With a very limited radio resources, how to enhance system throughput greatly is the key design to future 5G systems. Beam-group Division Multiple Access (BgDMA) is a 5G system that utilizes large-scale antenna technology, beam-channel signal processing and user grouping to achieve ultra-high user data rate, capacity and reduce the complexity of the system. The thesis studies precoding methods for BgDMA downlink s

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HSIEH, CHI-AN, and 謝騏安. "Improved User Scheduling Strategies for Beam-domain Based 5G Systems." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/50940714801556945107.

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碩士<br>國立中正大學<br>通訊工程研究所<br>104<br>Using large-scale antenna in the next generation mobile communications systems is one of the most popular research topics in recent years. Using hundreds of antennas at the base station, a large number of users can be served on the same time/frequency resources simultaneously and therefore increasing system capacity. Beam-group Division Multiple Access (BgDMA) is such a system. There are three key features in BgDMA system. (i) Use the beam-channel processing technique in spatial domain to eliminate frequency selectivity. (ii) Users can take advantage of multip

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Chang, Chun-Yi, and 張君屹. "Low–Latency Active User Identification and Receiver Processing for 5G Uplink." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/w3ej76.

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碩士<br>國立交通大學<br>電信工程研究所<br>106<br>To enable massive machine-type communication or real-time industrial monitoring and control for future 5G, low latency has been a key design issue for future wireless communication. In this thesis we consider two non-orthogonal multiple access systems for low-latency purpose. In the first system, finding the active user identities from the superimposed signals received at base station (BS) can be formulated. We proposes a CS-based uplink active user detection scheme over frequency selective channels, with the purpose of reducing latency. Specifically, during t

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Lin, Sheng-Yang, and 林聖洋. "Polarization-insensitive multi-user uplink for 5G small cell IFoF network." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/xyw5hs.

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Wu, Yi-Hua, and 吳奕華. "Analysis of the user planes in 4G and 5G core networks." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/qvpctu.

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"Vector Sensors and User Based Link Layer QoS for 5G Wireless Communication Applications." Doctoral diss., 2019. http://hdl.handle.net/2286/R.I.53612.

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abstract: The commercial semiconductor industry is gearing up for 5G communications in the 28GHz and higher band. In order to maintain the same relative receiver sensitivity, a larger number of antenna elements are required; the larger number of antenna elements is, in turn, driving semiconductor development. The purpose of this paper is to introduce a new method of dividing wireless communication protocols (such as the 802.11a/b/g/n and cellular UMTS MAC protocols) across multiple unreliable communication links using a new link layer communication model in concert with a smart antenna aper

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Hsu, Yao-Tsung, and 許耀宗. "Enhancing Availability and Efficiency of SDN-based 5G User Plane with P4 Switch." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/xh349h.

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碩士<br>國立交通大學<br>電機工程學系<br>106<br>To enhance network availability and support Quality of Service (QoS) requirements of different traffic types, many modifications have been proposed for Long Term Evolution (LTE) mobile network. As a result, the upcoming fifth generation (5G) mobile network architecture also incorporates the concept of Software Defined Networking (SDN). The centralized controller enables the detection of network problems and sets routing paths for different types of traffic from a global perspective. However, the latency between the controller and switches as well as the burden

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WU, WEI-CYUAN, and 吳偉銓. "On the Design of Uplink Multi-user Detection for Beam-group Division 5G Systems." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/353867.

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碩士<br>國立中正大學<br>通訊工程研究所<br>105<br>In order to gain high transmission rate and system capacity in the future 5G systems, 5G systems will use high-frequency radio resource and massive antenna arrays. When base station uses massive antennas to serve a lot of users simultaneously, the performance of the system will be degraded due to a high frequency selectivity for channels on antenna domain. In addition, huge complexity on channel estimation is inevitable because the larger the number of channel is, the higher the computation complexity. Recently, the beam domain signal processing, has been

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KUO, TING-HSIANG, and 郭庭翔. "On the Design of Downlink Multi-user Transmission for Beam-group Division 5G System." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/cnz3mt.

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碩士<br>國立中正大學<br>通訊工程研究所<br>105<br>4G (4th generation) wireless communication systems have been well-deployed around the world. On the other hand, wireless network demand is growing fast in the era of high-tech digital media. Therefore, with the very limited frequency resources, how to achieve higher and more stable data transmission is the key to the future development of 5G systems. BgDMA (Beam-group Division Multiple Access) system studied in this paper is designed to meet 5G requirements. There are three key features in this system. Firstly, the eNB side and the UE side form multiple beams

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Lan, Hao-Yu, and 藍浩佑. "Low Complexity Multi-User Detector Design for Sparse Code Multiple Access in 5G networks." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/8qnx69.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>106<br>Massive Machine Type Communications (mMTC) is one of the three major types of 5G use cases. In the coming era of Internet of Things (IoT), all devices will be connected. Currently there are several proposals for achieving this objective in the 3GPP standard meetings. One promising technology, called sparse code multiple access (SCMA), implements uplink grant-free non-orthogonal multiple access (NOMA) for mMTC networks. SCMA is derived from the low-density spread OFDM (LDS-OFDM) and has the advantages of low signaling overhead, low transmission latency, and hi

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Huang, Nai-Hsuan, and 黃乃軒. "User Activity Detection and Pilot Sequence Design for Uplink Grant-free NOMA in 5G Networks." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/u9j7tk.

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CHEN, SIH-CI, and 陳思錡. "Phased Antenna Array Module for User Equipment at Sub-6 GHz and Millimeter Wave Frequencies for 5G Mobile Communication Applications." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/dt88h3.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>107<br>In this paper, the antenna design and application of the fifth generation mobile communication using this device is introduced. The paper structure is divided into two parts; the first part introduces the frequency band below 6GHz. The application of this frequency band is expected to be based on the frequency band of the fourth generation mobile communication LTE, using unlicensed frequency bands and combining WiFi to improve the coverage of the overall signal. In this band, we designed a slotted antenna that is compatible with existing 5-inch mobile phones.

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Huo, Yiming. "Integrated silicon technology and hardware design techniques for ultra-wideband and next generation wireless systems." Thesis, 2017. http://hdl.handle.net/1828/8140.

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The last two decades have witnessed the CMOS processes and design techniques develop and prosper with unprecedented speed. They have been widely employed in contemporary integrated circuit (IC) commercial products resulting in highly added value. Tremendous e orts have been devoted to extend and optimize the CMOS process and its application for future wireless communication systems. Meanwhile, the last twenty years have also seen the fast booming of the wireless communication technology typically characterized by the mobile communication technology, WLAN technology, WPAN technology, etc. No

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