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Dissertations / Theses on the topic 'Wireless communication'

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1

Kodikara, Patabandi C. K. "Multimedia communications over 3G wireless communication systems." Thesis, University of Surrey, 2004. http://epubs.surrey.ac.uk/844270/.

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This thesis addresses the transmission of video over third generation radio access networks. The first part of the thesis investigates the capabilities of Universal Terrestrial Radio Access Networks (UTRAN) in terms of the provision of multimedia communications. The error performance and traffic requirements of real-time video transmission over circuit switched and packet switched connections are examined. The effect of network parameter settings upon video performances is evaluated, and optimum radio bearer configurations for the transmission of video are derived. A method of estimating recei
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2

Muhovic, Admir. "Secure Wireless Communication." Thesis, KTH, Kommunikationssystem, CoS, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-92023.

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The need for and requests for utilization of wireless equipment are growing rapidly. Advantages of using wireless communication are easy to realize. Having access to electronically stored information no matter where you are is a big advantage. Furthermore, wireless communication is increasingly utilized in everyday work and there is a constant development of new wireless equipment. Today, utilization of wireless communication is very practical as well as effective. On the other hand, using wireless equipment and communication entails risk unless efforts are made to secure this communication. S
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3

Cottingham, David Naveen. "Vehicular wireless communication." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611258.

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4

Dagne, Carl, Johan Bengtsson, and Ingemar Lindgren. "Microwave Wireless Communication System." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-232.

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<p>The purpose of the project was to develop the hardware to a microwave wireless system working </p><p>at the frequency 2.45 GHz. The functionality of the system should also be easy to understand </p><p>since the system is to be used in an educational purpose. Much time has been spent impedance </p><p>matching components, a task that proved to be harder than we expected. Other work that has been </p><p>is layout of all parts, filter construction and the writing of an easy to understand thesis. After the </p><p>parts had been completed, they were tested in a network analyzer and/or spectrum an
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5

Herbert, Steven John. "Wireless communication in vehicles." Thesis, University of Cambridge, 2015. https://www.repository.cam.ac.uk/handle/1810/280675.

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There is an increasing interest in the deployment of wireless communication systems in vehicles. The motivation for this work is to provide a fundamental characterisation of the in-vehicle Electromagnetic (EM) wave propagation environment, and to demonstrate how this can be used to aid the deployment of wireless communication systems in vehicles. The fundamental characterisation of the in-vehicle EM wave propagation environment presented in this dissertation yields a number of useful outcomes. The instantaneous impulse response of the in-vehicle channel is characterised, which is presented in
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6

Jiang, Junyi. "Optical wireless communication systems." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/387239/.

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In recent years, Optical Wireless (OW) communication techniques have attracted substantial attention as a benefit of their abundant spectral resources in the optical domain, which is a potential solution for satisfying the ever-increasing demand for increased wireless capacity in the conventional Radio Frequency (RF) band. Motivated by the emerging techniques and applications of OW communication, the Institute of Electrical and Electronics Engineers (IEEE) had released the IEEE standard 802.15.7 for short-range optical wireless communications, which categorised the Physical layer (PHY) of the
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7

Du, Hao. "Optical wireless MIMO communication." Thesis, University of Warwick, 2015. http://wrap.warwick.ac.uk/70945/.

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This thesis provides an in-depth investigation and evaluation of infrared optical wireless MIMO communication systems to be applied in both indoor and outdoor environment. The principle objective of the research is to demonstrate both the advantages and disadvantages of the optical wireless MIMO systems using different modulation types. The first part provided analyses of important OW configurations using APD receivers using WMC model and SISO, MISO, SIMO and MIMO configuration. Thus, an analytical expression for 2-1 MISO, 1-2 SIMO and MIMO was successfully developed. This part also illustrate
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8

Кovalenko, Viktoriya, and Oksana Tykhenko. "Wireless communication safety analysis." Thesis, Proceedings the Seventh World Congress «Aviation in the XXI-st Century», September 19 – 21, 2016. – P. 5.4.46 – 5.4.48, 2016. http://er.nau.edu.ua/handle/NAU/29355.

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9

Gao, Zihao. "Wireless Powered Communication Networks." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/17169.

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The limited life time of batteries is a crucial issue in energy-constrained wireless communications. Recently, the radio frequency (RF) wireless energy transfer (WET) technique has been developed as a new practical method to extend the life time of wireless communication networks. Inspired by this, wireless-powered communication network (WPCN) has attracted much attention. Therefore, in this thesis, we consider practical WET and wireless-powered information transmission in WPCNs. First we investigate a WPCN with two nodes, in which an access point (AP) exchanges information with a wireless-po
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10

Yamashita, Shota. "Coexistence of Wireless Communication and Non-communication Systems." Kyoto University, 2018. http://hdl.handle.net/2433/232420.

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11

Krause, Wolfram O. "Wireless communication networks : structure and dynamics of wireless multi-hop ad hoc communication networks /." Lichtenberg (Odenw.) : Harland media, 2006. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=015507583&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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12

Schuster, Ulrich G. "Wireless communication over wideband channels /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17565.

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13

Lee, Kah Ping. "Turbo equalization in wireless communication." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/5844.

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Thesis (M.S.)--University of Missouri-Columbia, 2005.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (July 11, 2006) Includes bibliographical references.
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14

Pakravan, Mohammad Reza. "Indoor infrared wireless communication channels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0016/NQ57061.pdf.

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15

Ray, Adam A. Roppel Thaddeus A. "Cooperative robotics using wireless communication." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Fall/Thesis/RAY_ADAM_44.pdf.

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16

Lu, Yang. "UWB antennas for wireless communication." Thesis, University of Liverpool, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.569654.

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Ultra-wideband (UWB) technology is a promising solution to provide high data-rate transmission of the future wireless communication systems. The rapid development of UWB wireless communication systems has brought both challenges and: opportunities to novel UWB antenna designs. This thesis is concentrated on the analysis, design and measurement of compact antennas for UWB devices, which can be divided into three areas. / The first area investigated is small planar broadband antennas for wearable and positioning applications where the antennas with unidirectional radiation patterns may be prefer
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17

Liu, Luyan. "Wireless Communication in Smart Housing." Thesis, Linnéuniversitetet, Institutionen för fysik och elektroteknik (IFE), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-37631.

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With the development of computer and information technology, information and network will be the inevitable trend of smart home which aims to offer a comfortable, efficient, and convenient home. In this thesis, the background, developments and limitations of smart home systems will be described. Wired and wireless technologies applied on the smart home network will be analyzed and a comparison of them will be made. Finally, the ZigBee technology is selected to design the wireless communication network. For the system design, the thesis describes an idea where cluster topology is chosen to desi
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18

Bourget, Marc A. (Marc Anthony) 1979. "Expanding the wireless communication paradigm." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/87185.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.<br>"June 2002."<br>Includes bibliographical references (leaves 44-45).<br>by Marc A. Bourget.<br>M.Eng.
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19

Music, Craig 1978. "Expanding the wireless communication paradigm." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/8077.

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20

Ding, Yuan. "Directional modulation secured wireless communication." Thesis, Queen's University Belfast, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.676283.

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The main objective of this work was the development of the directional modulation (DM) technique, which is a promising keyless physical layer security means for securing wireless communication in free space. It is realized, from a summary of the state-of-the-art OM systems, that although the OM concept appears to be a competitive candidate to enhance the secrecy performance of the next generation of wireless communication, it suffers various fundamental problems, which makes the OM research carried out in an unsystematic and inefficient manner. In order to integrate the previous scattered OM e
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21

Schuster, Ulrich G. "Wireless communication over wideband channels." Konstanz Hartung-Gorre, 2008. http://d-nb.info/993286984/04.

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22

Alhartomi, Mohammed. "Collaborative optical wireless communication systems." Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/13153/.

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23

Toni, Laura <1982&gt. "Adaptive wireless multimedia communication systems." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/2117/1/Laura_Toni_tesi.pdf.

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In recent years, due to the rapid convergence of multimedia services, Internet and wireless communications, there has been a growing trend of heterogeneity (in terms of channel bandwidths, mobility levels of terminals, end-user quality-of-service (QoS) requirements) for emerging integrated wired/wireless networks. Moreover, in nowadays systems, a multitude of users coexists within the same network, each of them with his own QoS requirement and bandwidth availability. In this framework, embedded source coding allowing partial decoding at various resolution is an appealing technique for multimed
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24

Toni, Laura <1982&gt. "Adaptive wireless multimedia communication systems." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/2117/.

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In recent years, due to the rapid convergence of multimedia services, Internet and wireless communications, there has been a growing trend of heterogeneity (in terms of channel bandwidths, mobility levels of terminals, end-user quality-of-service (QoS) requirements) for emerging integrated wired/wireless networks. Moreover, in nowadays systems, a multitude of users coexists within the same network, each of them with his own QoS requirement and bandwidth availability. In this framework, embedded source coding allowing partial decoding at various resolution is an appealing technique for multimed
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25

Cavallari, Riccardo <1986&gt. "Human-Centric Wireless Communication Networks." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7444/1/tesi.pdf.

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This thesis covers two main topics: the design and performance evaluation of Wireless Body Area Networks (WBANs), and the simulation and mathematical modeling of Delay Tolerant Networks (DTNs). Different Medium Access Control (MAC) protocols for WBANs are implemented on dedicated hardware in order to evaluate, through extensive measurement campaigns, the performance of the network in terms of packet loss rate, delay and energy consumption. Novel solutions to cope with body shadowing and to improve the coexistence with other wireless technologies, are presented and evaluated. An anal
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26

Cavallari, Riccardo <1986&gt. "Human-Centric Wireless Communication Networks." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7444/.

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This thesis covers two main topics: the design and performance evaluation of Wireless Body Area Networks (WBANs), and the simulation and mathematical modeling of Delay Tolerant Networks (DTNs). Different Medium Access Control (MAC) protocols for WBANs are implemented on dedicated hardware in order to evaluate, through extensive measurement campaigns, the performance of the network in terms of packet loss rate, delay and energy consumption. Novel solutions to cope with body shadowing and to improve the coexistence with other wireless technologies, are presented and evaluated. An anal
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27

ZHANG, LINCHAO. "Reliable Communication in Wireless Networks." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2537290.

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Wireless communication systems are increasingly being used in industries and infrastructures since they offer significant advantages such as cost effectiveness and scalability with respect to wired communication system. However, the broadcast feature and the unreliable links in the wireless communication system may cause more communication collisions and redundant transmissions. Consequently, guaranteeing reliable and efficient transmission in wireless communication systems has become a big challenging issue. In particular, analysis and evaluation of reliable transmission protocols in wireless
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28

Islam, Kazi Y. "Wireless communication in harsh environments." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2023. https://ro.ecu.edu.au/theses/2722.

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The ability to communicate underwater is a lucrative capability for industries, academia and the military. In these sectors, underwater wireless communications (UWC) are used for a variety of applications, such as oil and gas exploration, the monitoring of undersea pipelines, oceanography, seismology, undersea surveillance, and the detection of mines. However, many of these undersea activities are deterred due to numerous challenges posed by the harsh underwater environment. Energy scarcity is one of the major challenges, as frequent recharging of underwater depleted nodes is not practical. En
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29

Barros, João. "Reachback communication in wireless sensor networks." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=973065753.

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30

Acharya, Om Nath, and Sabin Upadhyaya. "Space Time Coding For Wireless Communication." Thesis, Linnéuniversitetet, Institutionen för datavetenskap, fysik och matematik, DFM, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-19424.

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As the demand of high data rate is increasing, a lot of research is being conducted in the field of wireless communication. A well-known channel coding technique called Space-Time Coding has been implemented in the wireless Communication systems using multiple antennas to ensure the high speed communication as well as reliability by exploiting limited spectrum and maintaining the power. In this thesis, Space-Time Coding is discussed along with other related topics with special focus on Alamouti Space-Time Block Code. The Alamouti Codes show good performance in terms of bit error rate over Rayl
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31

Nordberg, Jörgen. "Signal enhancement in wireless communication systems /." Ronneby : Department of Telecommunications and Signal Processing, Blekinge Institute of Technology, 2002. http://www.bth.se/fou.

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32

Ren, Kui. "Communication security in wireless sensor networks." Worcester, Mass. : Worcester Polytechnic Institute, 2007. http://www.wpi.edu/Pubs/ETD/Available/etd-040607-174308/.

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33

Yu, Qiang. "Frequency synchronization techniques in wireless communication." Thesis, Cardiff University, 2007. http://orca.cf.ac.uk/54596/.

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In this thesis various iterative channel estimation and data detection techniques for time-varying frequency selective channels with multiple frequency offsets are proposed. Firstly, a maximum likelihood approach for the estimation of complex multipath gains (MGs) and real Doppler shifts (DSs) for a single input "single output (SISO) frequency selective channel is proposed. In a time di vision multiple access (TDMA) system, for example the third-generation global system, or mobile GSM communications, the pilot symbols are generally inadequate to provide enough resolution to estimate frequency
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34

Yuen, Hector. "An ad-hoc wireless communication system." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/37398.

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Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2006.<br>Includes bibliographical references (p. 77-79).<br>This thesis studies the challenges of providing load balancing and fault-tolerant external links between ad-hoc multicast mesh networks. The work is the gateway component of a research platform called FluidVoice, a wireless audio communication system. This system consists of nodes forming a broadcast mesh based on 802.11. Some of these nodes called Stargates have the capability to communicate to the external w
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Min, Rex K. (Rex Kee) 1976. "Energy and quality scalable wireless communication." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/28272.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.<br>Includes bibliographical references (p. 165-171).<br>Nodes for emerging, high-density wireless networks will face the dual challenges of continuous, multi-year operation under diverse and challenging operating conditions. The wireless communication subsystem, a substantial consumer of energy, must therefore be designed with unprecedented energy efficiency. To meet this challenge, inefficiencies once overlooked must be addressed, and the system must be designed for energy scala
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36

Johnson, Brent, Colin Madrid, Kevin Yiin, Hanwen Wang, Chengxi Li, and Xizhi Tan. "3D Printed Antennas for Wireless Communication." International Foundation for Telemetering, 2015. http://hdl.handle.net/10150/596460.

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ITC/USA 2015 Conference Proceedings / The Fifty-First Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2015 / Bally's Hotel & Convention Center, Las Vegas, NV<br>This paper describes the details of design and critical analysis of the process of 3D printing antennas for wireless communications applications. The subjective testing methods utilized were chosen specifically based on project scope and researcher capability. Our results indicate that more work is necessary in this field but that the basic idea is feasible.
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37

Lacerda, Neto Raul Liberato de. "Exploiting the wireless channel for communication." Nice, 2008. http://www.theses.fr/2008NICE4049.

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The recent development in digital communications has made wireless networks one of the most promising areas of research. Fueled by the advances in digital processing, high data rate connections have recently become the focus of research in the communication domain. The growth of the Internet and the introduction of a multitude of applications culminated in a new era of communications in which wireless networks play a very important role. However, the wireless environment still offers some challenges that need to be addressed before meeting next generation mobile requirements. Due to imperfect
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38

Sepasian, Mojtaba. "Multibiometric security in wireless communication systems." Thesis, Brunel University, 2010. http://bura.brunel.ac.uk/handle/2438/5081.

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This thesis has aimed to explore an application of Multibiometrics to secured wireless communications. The medium of study for this purpose included Wi-Fi, 3G, and WiMAX, over which simulations and experimental studies were carried out to assess the performance. In specific, restriction of access to authorized users only is provided by a technique referred to hereafter as multibiometric cryptosystem. In brief, the system is built upon a complete challenge/response methodology in order to obtain a high level of security on the basis of user identification by fingerprint and further confirmation
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39

Fan, Ho Yin. "MIMO detection schemes for wireless communication /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202002%20FAN.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2002.<br>Includes bibliographical references (leaves 64-66). Also available in electronic version. Access restricted to campus users.
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40

Kennedy, B. Scott. "Reconfigurable multi-node wireless communication testbed." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0004832.

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41

Li, Ziyi. "Wireless-Powered Communication with Energy Accumulation." Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/16123.

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In this thesis, I focus on the system design and performance analysis of wireless communication networks with radio frequency (RF) energy harvesting. Battery re-placement/recharging has always been a challenging issue in wireless communication networks, especially in large-scale networks like wireless sensor networks (WSNs). Recently, RF energy harvesting (EH) technology has been developed as a new viable solution to extend the lifetime of wireless networks via enabling wireless devices to harvest energy from RF signals. Inspired by this technique, wireless-powered communication networks (WPCN
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42

Morshed, M. (Munim). "Wireless backhaul in future cellular communication." Master's thesis, University of Oulu, 2018. http://jultika.oulu.fi/Record/nbnfioulu-201809292841.

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Abstract. In 5G technology, huge number of connected devices are needed to be considered where the expected throughput is also very ambitious. Capacity is needed and thus used frequencies are expected to get higher (above 6 GHz even up to 80 GHz), the Cell size getting smaller and number of cells arising significantly. Therefore, it is expected that wireless backhaul will be one option for Network operators to deliver capacity and coverage for high subscriber density areas with reduced cost. Wireless backhaul optimization, performance and scalability will be on the critical path on such cellul
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43

Abbas, Waqas Bin. "Energy Efficient Communication in Wireless Networks." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3424869.

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This thesis investigates energy efficient communication in wireless networks. The work considers energy efficiency from both a device and a network perspective. Firstly, we investigate the energy efficiency (EE) of a receiver equipped with large antenna arrays. In a receiver architecture, operating either at millimeter wave (mmWave) or at microwave (massive multiple input multiple output (MIMO)), the use of a high resolution analog-to-digital converter (ADC) is traditionally considered as a main bottleneck to achieve an energy efficient design. To address this issue, in contrast to previous
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44

Wang, Shendi. "Efficient transmission design for machine type communications in future wireless communication systems." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/23647.

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With a wide range of potential applications, the machine type communication (MTC) is gaining a tremendous interest among mobile network operators, system designers, MTC specialist companies, and research institutes. The idea of having electronic devices and systems automatically connected to each other without human intervention is one of the most significant objectives for future wireless communications. Low data rate transmission and the requirement for low energy consumption are two typical characteristics for MTC applications. In terms of supporting low cots MTC devices, industrial standar
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45

Sohaib, Sarmad. "Energy efficient cooperative wireless communications." Thesis, University of Manchester, 2010. https://www.research.manchester.ac.uk/portal/en/theses/energy-efficient-cooperative-wireless-communications(a852e1e2-04ad-4311-8004-53babe529e1b).html.

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Cooperative diversity exploits the broadcast nature of wireless channels and uses relays to improve link reliability. Most cooperative communication protocols are assumed to be synchronous in nature, which is not always possible in wireless communication. Also the relay nodes are assumed to be half duplex which in turn reduces the spectral efficiency. In this thesis, we first present a novel asynchronous cooperative communication protocol exploiting polarization diversity, which does not require synchronization at the relay node. Dual polarized antennas are employed at the relay node to achiev
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46

Sun, Zhi. "Reliable and efficient communication in wireless underground sensor networks." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41150.

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Wireless Underground Sensor Networks (WUSNs) are the networks of wireless sensors that operate below the ground surface. These sensors are either buried completely in soil medium, or placed within a bounded open underground space, such as underground mines and tunnels. WUSNs enable a wide variety of novel applications, including intelligent irrigation, underground structure monitoring, and border patrol and intruder detection. This thesis is concerned with establishing reliable and efficient communications in the network of wireless sensor nodes that are deployed in either soil medium or un
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47

Xia, Bin, and 夏斌. "Enhanced techniques for broadband wireless communications." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B29144231.

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48

Yin, Hujun. "Cross layer design and optimization of wireless networks /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/5904.

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49

Zhang, Mingliu. "Wireless communication for sparse and rural areas." Diss., Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/zhang/ZhangM0807.pdf.

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50

Liu, Lingjia. "On delay-sensitive communication over wireless systems." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2725.

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