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Dissertations / Theses on the topic 'Routing and spectrum allocation'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Sayyad, Khodashenas Pouria. "Dynamic routing and spectrum allocation in elastic optical networks." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/145436.

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Triggered by emerging services such as high-definition video distribution or social networking, the IP traffic volume has been exponentially increasing to date. Furthermore, the traffic growth rate will not stop here due to the day by day technology advances. For example, new hardware advances such as multicore processing, virtualization and network storage will support new generation e-Science and grid applications, requesting data flows of 10 Gb/s up to terabit level. In response to these large capacity and diverse traffic granularity needs of the future Internet, the Elastic Optical Network

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2

El-Nainay, Mustafa Y. "Island Genetic Algorithm-based Cognitive Networks." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/28297.

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The heterogeneity and complexity of modern communication networks demands coupling network nodes with intelligence to perceive and adapt to different network conditions autonomously. Cognitive Networking is an emerging networking research area that aims to achieve this goal by applying distributed reasoning and learning across the protocol stack and throughout the network. Various cognitive node and cognitive network architectures with different levels of maturity have been proposed in the literature. All of them adopt the idea of coupling network devices with sensors to sense network conditio

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3

Moura, Pedro Mesquita 1989. "Roteamento e alocação de espectro em redes ópticas elásticas." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/275658.

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Orientador: Nelson Luis Saldanha da Fonseca<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Computação<br>Made available in DSpace on 2018-08-27T20:17:10Z (GMT). No. of bitstreams: 1 Moura_PedroMesquita_M.pdf: 2113385 bytes, checksum: 1ba529be35f0f2fbcb95f91c01acfa29 (MD5) Previous issue date: 2015<br>Resumo: As redes ópticas com multiplexação por comprimento de onda empregam uma grade fixa de divisão do espectro, dividindo-o em grandes faixas com alta capacidade de transmissão. Apesar de este esquema atingir altas velocidades de até 100Gb/s atualmente, a demanda

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4

Friend, Daniel. "Cognitive Networks: Foundations to Applications." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/26449.

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Fueled by the rapid advancement in digital and wireless technologies, the ever-increasing capabilities of wireless devices have placed upon us a tremendous challenge - how to put all of this capability to effective use. Individually, wireless devices have outpaced the ability of users to optimally configure them. Collectively, the complexity is far more daunting. Research in cognitive networks seeks to provide a solution to the diffculty of effectively using the expanding capabilities of wireless networks by embedding greater degrees of intelligence within the network itself. In this dissertat

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5

Wu, Haitao. "Conception et analyse d’algorithmes d’approximation dans les réseaux de communication de nouvelle génération." Thesis, Avignon, 2018. http://www.theses.fr/2018AVIG0231/document.

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Avec l’avènement de l’ère intellectuelle et de l’Internet of Everything (IoE), les besoins de la communication mondiale et des applications diverses ont explosé. Cette révolution exige que les futurs réseaux de communication soient plus efficaces, intellectuels, agiles et évolutifs. De nombreuses technologies réseau sont apparues pour répondre à la tendance des réseaux de communication de nouvelle génération tels que les réseaux optiques élastiques (EONs) et la virtualisation de réseau. De nombreux défis apparaissent avec les apparences de la nouvelle architecture et de la nouvelle technologie

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6

Moataz, Fatima Zahra. "Vers des réseaux optiques efficaces et tolérants aux pannes : complexité et algorithmes." Thesis, Nice, 2015. http://www.theses.fr/2015NICE4077/document.

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Nous étudions dans cette thèse des problèmes d’optimisation avec applications dans les réseaux optiques. Les problèmes étudiés sont liés à la tolérance aux pannes et à l’utilisation efficace des ressources. Les résultats obtenus portent principalement sur la complexité de calcul de ces problèmes. La première partie de cette thèse est consacrée aux problèmes de trouver des chemins et des chemins disjoints. La recherche d’un chemin est essentielle dans tout type de réseaux afin d’y établir des connexions et la recherche de chemins disjoints est souvent utilisée pour garantir un certain niveau de

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7

Shariat, Shahin. "Spectrum-aware routing in cognitive radio MANETs." Thesis, University of Surrey, 2018. http://epubs.surrey.ac.uk/845510/.

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Cognitive Radio (CR) provides a promising means to the more efficient use of available spectrum. Routing in multi-hop wireless networks remains challenging and introduction of CR technology has created additional demands on routing within Cognitive Radio Mobile Ad-hoc Networks (CR-MANETs). To address these challenges, spectrum-aware routing protocols aiming at dynamic utilization of the so-called spectrum opportunities have been developed recently to improve end-to-end performance of the network for example in terms of Delay, Packet Loss and Throughput. One of the bottlenecks in the performanc

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Capelari, Natália Santa Bárbara. "Proteção compartilhada e restauração de tráfego em redes ópticas de segmentação espectral flexível." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-13062016-154945/.

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A busca de sistemas de comunicação eficientes e econômicos é cada vez maior, principalmente com o aumento da demanda por tráfego e banda de transmissão. Conhecidas pela utilização eficiente de largura de banda, as redes ópticas de segmentação espectral flexível têm sido intensamente estudadas e são consideradas boas candidatas para a próxima geração de redes. Tais redes flexíveis utilizam formatos de modulação multinível e multiplexação multiportadora. Sistemas com alta capacidade de transmissão devem ser extremamente confiáveis, pois a falha em um dispositivo ou enlace da rede acarreta enorme

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9

Painter, Mike K., Ronald Fernandes, Satheesh Ramachandran, Ajay Verma, and Charles H. Jones. "Strategies for Optimized Spectrum Allocation and Management." International Foundation for Telemetering, 2009. http://hdl.handle.net/10150/606132.

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ITC/USA 2009 Conference Proceedings / The Forty-Fifth Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2009 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>This paper describes research aimed at investigating how to help decision makers devise optimized frequency scheduling and management strategies, both for advanced planning and real-time metrics adjustment. Part of these investigations include research to (i) define the metrics, objectives, and constraints involved in optimal frequency allocation decision-making; (ii) harmonize competing, orth

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10

Mauwa, Hope Rabson. "White Space Network Management: Spectrum Quanti cation, Spectrum Allocation and Network Design." University of the Western Cape, 2017. http://hdl.handle.net/11394/6171.

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Philosophiae Doctor - PhD (Computer Science)<br>The unused spectrum in the television broadcasting frequency bands (so-called TV white spaces) can alleviate the spectrum crunch, and have potential to provide broadband connection to rural areas of countries in the developing world. Current research on TV white spaces focuses on how to detect them accurately, and how they can be shared or allocated to secondary devices. Therefore, the focus of this research is three-fold: to investigate a novel distributed framework, which does not use propagation models in detecting TV white spaces, and suitabl

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11

Zhang, Tao. "Optimization of Spectrum Allocation in Cognitive Radio and Dynamic Spectrum Access Networks." Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1364171144.

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12

Wang, Jun. "Multitaper spectrum based detection for spectrum sensing in cognitive radio networks /." access full-text access abstract and table of contents, 2009. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?mphil-ee-b23750480f.pdf.

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Thesis (M.Phil.)--City University of Hong Kong, 2009.<br>"Submitted to Department of Electronic Engineering in partial fulfillment of the requirements for the degree of Master of Philosophy." Includes bibliographical references (leaves 66-74)

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13

Yang, Jianjun. "RESOURCE ALLOCATION AND EFFICIENT ROUTING IN WIRELESS NETWORKS." UKnowledge, 2011. http://uknowledge.uky.edu/gradschool_diss/833.

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In wireless networks, devices (nodes) are connected by wireless links. An important issue is to set up high quality (high bandwidth) and efficient routing paths when one node wants to send packets to other nodes. Resource allocation is the foundation to guarantee high quality connections. In addition, it is critical to handle void areas in order to set up detour-free paths. Moreover, fast message broadcasting is essential in mobile wireless networks. Thus, my research includes dynamic channel allocation in wireless mesh networks, geographic routing in Ad Hoc networks, and message broadcasting

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14

Baroni, Stefano. "Routing and wavelength allocation in WDM optical networks." Thesis, University College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246429.

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15

Jacob-David, Dany D. "Effective Resource Allocation for Non-cooperative Spectrum Sharing." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20316.

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Spectrum access protocols have been proposed recently to provide flexible and efficient use of the available bandwidth. Game theory has been applied to the analysis of the problem to determine the most effective allocation of the users’ power over the bandwidth. However, prior analysis has focussed on Shannon capacity as the utility function, even though it is known that real signals do not, in general, meet the Gaussian distribution assumptions of that metric. In a non-cooperative spectrum sharing environment, the Shannon capacity utility function results in a water-filling solution. In this

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16

Leaves, Paul Robert. "Dynamic spectrum allocation between cellular and broadcast systems." Thesis, University of Surrey, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402770.

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17

Lv, Jing. "Resource Allocation in Underlay and Overlay Spectrum Sharing." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-159087.

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As the wireless communication technologies evolve and the demand of wireless services increases, spectrum scarcity becomes a bottleneck that limits the introduction of new technologies and services. Spectrum sharing between primary and secondary users has been brought up to improve spectrum efficiency. In underlay spectrum sharing, the secondary user transmits simultaneously with the primary user, under the constraint that the interference induced at the primary receiver is below a certain threshold, or a certain primary rate requirement has to be satisfied. Specifically, in this thesis, the c

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18

Yuan, Yuan. "Enabling dynamic spectrum allocation in cognitive radio networks." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7641.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Dept. of Computer Science. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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19

Claudino, Lucas dos Santos Araujo. "Cognitive radio : spectrum sensing and optimal resource allocation." Universidade Estadual de Londrina. Centro de Tecnologia e Urbanismo. Programa de Pós-Graduação em Engenharia Elétrica, 2018. http://www.bibliotecadigital.uel.br/document/?code=vtls000218384.

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Redes de Rádio Cognitivo constituem uma tecnologia recente que busca fazer o uso otimizado do espectro de frequências, que jáestá super-utilizado. Essa tecnologia oferece meios para portadores de licensa compartilhar sua banda de frequências com outros usuários para possibilitar o uso eficiente e também recerber certos benefícios em troca, como descontos ou aumento do tempo de validade da licensa. Dado que essa tecnologia é relativamente recente, os seus estudos estão ainda incompletos e precisam de uma pesquisa mais aprofundada. A fim de contribuir com a literatura, este trabalho trás importa

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20

Zhu, Yong. "Routing, Resource Allocation and Network Design for Overlay Networks." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14017.

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Overlay networks have been the subject of significant research and practical interest recently in addressing the inefficiency and ossification of the current Internet. In this thesis, we cover various aspects of overlay network design, including overlay routing algorithms, overlay network assignment and multihomed overlay networks. We also examine the behavior of overlay networks under a wide range of network settings and identify several key factors that affect the performance of overlay networks. Based on these findings, practical design guidelines are also given. Specifically, this thesis a

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21

Verma, Sanjeev. "Multicast routing and resource allocation for high-speed networks." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0012/NQ35354.pdf.

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22

Chiraphadhanakul, Virot. "Routing and scheduling models for robust allocation of slack." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/61571.

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Thesis (S.M.)--Massachusetts Institute of Technology, Sloan School of Management, Operations Research Center; and, (S.M. in Transportation)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 142-144).<br>A myriad of uncontrollable factors in airline operations make delays and disruptions unavoidable. Most conventional scheduling models, however, ignore the presence of uncertainties in actual operations in order to limit the complexity of the problem. This leads to schedu

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23

Rahman, Md Arifur. "Routing on Resource Allocation in Free Space Optical Network." Thesis, Linköpings universitet, Kommunikations- och transportsystem, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-128830.

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Free space optical Networks (FSO) provide benefits such as high speed, cost efficiency and licence-free high bandwidth. However, these networks are susceptible to different atmospheric conditions. The purpose of this thesis is to study the effects of weather on the performance of resource allocations and routing algorithms on the FSO network in order to investigate how to achieve an efficient data flow within the FSO systems. In FSO networks, resource allocation involves allocating communication resources to the links of the network. The optimal routing of the data depends on the link capaciti

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Luo, Lu. "Joint routing and resource allocation in multihop wireless network /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?ECED%202009%20LUOL.

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25

Engevall, Stefan. "Cost allocation in some routing problems : a game theoretic approach /." Linköping : Univ, 2002. http://www.bibl.liu.se/liupubl/disp/disp2002/tek754s.pdf.

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26

Sabo, Chelsea M. S. "Routing and Allocation of Unmanned Aerial Vehicles with Communication Considerations." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1352992466.

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27

Kataria, Amit. "Cognitive radios spectrum sensing issues /." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5047.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.<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 March 28, 2008) Includes bibliographical references.

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28

Mohan, Divya. "Dynamic spectrum allocation algorithms in large wireless ad hoc networks." Thesis, University of Bristol, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.738326.

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29

Fofanah, Jemilatu. "Spectrum Management in Telemetry Networks." International Foundation for Telemetering, 2012. http://hdl.handle.net/10150/581650.

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ITC/USA 2012 Conference Proceedings / The Forty-Eighth Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2012 / Town and Country Resort & Convention Center, San Diego, California<br>Spectrum efficiency is the key challenge in modern telemetry systems. Network telemetry requires moving from a dedicated link structure to a network structure which is a very complex problem and requires spectrum management tools. A mixed network structure has been previously proposed for networked telemetry which employs a combination of cellular and Adhoc networks. Significant

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Zschoch, Mark Alexander. "On a common wavelength, convergent Canadian and American spectrum allocation policy." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq24283.pdf.

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31

Shajaiah, Haya Jamal. "Resource Allocation with Carrier Aggregation for Spectrum Sharing in Cellular Networks." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/70882.

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Recently, there has been a massive growth in the number of mobile users and their traffic. The data traffic volume almost doubles every year. Mobile users are currently running multiple applications that require higher bandwidth which makes users so limited to the service providers' resources. Increasing the utilization of the existing spectrum can significantly improve network capacity, data rates and user experience. Spectrum sharing enables wireless systems to harvest under-utilized swathes of spectrum, which would vastly increase the efficiency of spectrum usage. Making more spectrum avail

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Jia, Juncheng. "Cognitive radio networks for dynamic spectrum management /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CSED%202009%20JIA.

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33

Thiessen, Christian. "Resilient routing and spectrum assignment in Elastic Optical Networks under Dynamic Traffic." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-155684.

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Transparent Elastic Optical Networks (EON) are seen as a promising solution for future optical transport networks to keep up with internet traffic growth, as they allow provisioning connections with different bandwidth requirements in an efficient way. To achieve high spectrum efficiency in these networks, making good Routing, Modulation and Spectrum Assignment (RMLSA) decisions is essential. Since fiber cuts are common, resiliency against single-link failures is another important topic. This can be provided efficiently through shared-path protection (SPP), which in turn complicates the RMLSA

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Shu, Tao. "Efficient Radio Resource Management and Routing Mechanisms for Opportunistic Spectrum Access Networks." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/194747.

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Opportunistic spectrum access (OSA) promises to significantly improve the utilization of the RF spectrum. Under OSA, an unlicensed secondary user (SU) is allowed to detect and access under-utilized portions of the licensed spectrum, provided that such operation does not interfere with the communication of licensed primary users (PUs). Cognitive radio (CR) is a key enabling technology of OSA. In this dissertation, we propose several radio resource management and routing mechanisms that optimize the discovery and utilization of spectrum opportunities in a cognitive radio network (CRN). First, we

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Khalaf, Gamal Abdel-Fadeel Mohamed. "Traffic estimation, routing and bandwidth allocation in packet-based speech communication networks." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/46388.

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36

Salhi, S. "The integration of routing into the location-allocation and vehicle composition problems." Thesis, Lancaster University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333016.

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Dab, Boutheina. "Optimization of routing and wireless resource allocation in hybrid data center networks." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC1068/document.

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L’arrivée de la prochaine technologie 5G va permettre la connectivité des billions de terminaux mobiles et donc une énorme augmentation du trafic de données. A cet égard, les fournisseurs des services Cloud doivent posséder les infrastructures physiques capables de supporter cette explosion de trafic. Malheureusement, les architectures filaires conventionnelles des centres de données deviennent staturées et la congestion des équipements d’interconnexion est souvent atteinte. Dans cette thèse, nous explorons une approche récente qui consiste à augmenter le réseau filaire du centre de données av

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Al, Sheikh Ahmad. "Resource allocation in hard real-time avionic systems : scheduling and routing problems." Phd thesis, INSA de Toulouse, 2011. http://tel.archives-ouvertes.fr/tel-00631443.

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Le domaine avionique a été transformé par l'apparition des architectures modulaires intégrées (IMA). Celles-ci définissent un support d'exécution et de communication standard et mutualisé afin de réduire la complexité de l'architecture physique. Cependant, du fait du partage des ressources, cette démarche introduit une plus grande complexité lors de la conception et de l'intégration des applications ce qui implique d'assister les concepteurs avec des outils dédiés. La présente thèse contribue à cet effort en se focalisant sur deux problèmes d'allocation de ressources : i) le problème de l'ordo

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Al, Sheikh Ahmad. "Resource allocation in hard real-time avionic systems : scheduling and routing problems." Electronic Thesis or Diss., Toulouse, INSA, 2011. http://www.theses.fr/2011ISAT0010.

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Le domaine avionique a été transformé par l'apparition des architectures modulaires intégrées (IMA). Celles-ci définissent un support d'exécution et de communication standard et mutualisé afin de réduire la complexité de l'architecture physique. Cependant, du fait du partage des ressources, cette démarche introduit une plus grande complexité lors de la conception et de l'intégration des applications ce qui implique d’assister les concepteurs avec des outils dédiés. La présente thèse contribue à cet effort en se focalisant sur deux problèmes d'allocation de ressources : i) le problème de l'ordo

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Swami, Sameer. "Graph theoretic approach to QoS guaranteed spectrum allocation in cognitive radio networks." Cincinnati, Ohio : University of Cincinnati, 2008. http://rave.ohiolink.edu/etdc/view.cgi?acc_num=ucin1223916863.

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Thesis (M.S.)--University of Cincinnati, 2008.<br>Advisor: Kenneth Berman. Title from electronic thesis title page (viewed Feb.16, 2008). Includes abstract. Keywords: Cognitive radios; channel allocation; greedy priority optimization Includes bibliographical references.

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Chen, Youjia. "Distributed Resource Allocation And Spectrum Sharing In Future Heterogeneous Wireless Cellular Networks." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/16891.

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This thesis focuses on the study of Heterogeneous Networks (HetNets), analyzing the system performance and the allocation of available resources, such as serving BSs, spectrum, power supply and storage. Specifically, four main research focuses are included. The first focus is load balancing problem in HetNets. First, a factor graph model is developed to represent the user association problem and decompose the network-wide objective into local utility functions. Then, a distributed belief propagation (BP) algorithm is proposed to find out the optimal user association. Furthermore, several p

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Pianov, Dmitrii. "Allocation Mechanisms in Partially Linked Secondary Spectrum Markets: A Theory And Experiment." OpenSIUC, 2018. https://opensiuc.lib.siu.edu/dissertations/1518.

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We analyze dynamic equilibria of a multiple markets model with sparsely allocated participants. An example of such a market is the secondary radio spectrum market. In the first chapter a general model is represented by an allocation of a good from sellers to buyers where purchases can only occur if a buyer and seller are linked or if a buyer is located in the seller's coverage area. First, we study the static part of the model and show an optimal auction design for price efficiency. Second, we assume a dynamic structure where buyers can reallocate and show sufficient conditions to reach equili

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Schröder, Klaus. "Balls-into-bins a paradigm for job allocation, data distribution processes, and routing /." [S.l. : s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=963147307.

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Gong, Xuan. "Cross-layer design through joint routing and link allocation in wireless sensor networks." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2008. http://scholarsmine.mst.edu/thesis/pdf/xgwt2_09007dcc8053a770.pdf.

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Thesis (M.S.)--Missouri University of Science and Technology, 2008.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed August 15, 2008) Includes bibliographical references (p. 49-55).

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Liu, Zhiyong. "Ant Based Algorithm and Robustness Metric in Spare Capacity Allocation for Survivable Routing." Thesis, University of Canterbury. Electrical and Computer Engineering, 2010. http://hdl.handle.net/10092/4099.

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Network resiliency pertains to the vulnerability of telecommunication networks in the case of failures and malicious attacks. With the increasing capacity catering of network for the booming multi-services in Next Generation Networks (NGNs), reducing recovery time and improving capacity efficiency while providing high quality and resiliency of services has become increasingly important for the future network development. Providing network resiliency means to rapidly and accurately reroute the traffic via diversely routed spare capacity in the network when a failure takes down links or nodes in

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Petrin, Allen John. "Maximizing the Utility of Radio Spectrum: Broadband Spectrum Measurements and Occupancy Model for Use by Cognitive Radio." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-07152005-135311/.

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Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2006.<br>Dr. Stevenson J. Kenney, Committee Member ; Dr. Paul G. Steffes, Committee Chair ; Dr. Gregory D. Durgin, Committee Member ; Dr. Aaron D. Lanterman, Committee Member ; Dr. Robert G. Roper, Committee Member.

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Keßelheim, Thomas [Verfasser]. "Approximation algorithms for spectrum allocation and power control in wireless networks / Thomas Keßelheim." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2012. http://d-nb.info/1027607756/34.

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Tang, Jie. "Mathematical optimization techniques for resource allocation and spatial multiplexing in spectrum sharing networks." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/11677.

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Abstract:

Due to introduction of smart phones with data intensive multimedia and interactive applications and exponential growth of wireless devices, there is a shortage for useful radio spectrum. Even though the spectrum has become crowded, many spectrum occupancy measurements indicate that most of the allocated spectrum is underutilised. Hence radically new approaches in terms of allocation of wireless resources are required for better utilization of radio spectrum. This has motivated the concept of opportunistic spectrum sharing or the so-called cognitive radio technology that has great potential to

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49

Karaputugala, Gamacharige Madushan Thilina. "On spectrum sensing, resource allocation, and medium access control in cognitive radio networks." Elsevier, 2012. http://hdl.handle.net/1993/30650.

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The cognitive radio-based wireless networks have been proposed as a promising technology to improve the utilization of the radio spectrum through opportunistic spectrum access. In this context, the cognitive radios opportunistically access the spectrum which is licensed to primary users when the primary user transmission is detected to be absent. For opportunistic spectrum access, the cognitive radios should sense the radio environment and allocate the spectrum and power based on the sensing results. To this end, in this thesis, I develop a novel cooperative spectrum sensing scheme for c

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50

Zhong, Bo. "Cross-layer QoE improvement with dynamic spectrum allocation in OFDM-based cognitive radio." Thesis, Queen Mary, University of London, 2014. http://qmro.qmul.ac.uk/xmlui/handle/123456789/9103.

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Abstract:

Rapid development of devices and applications results in dramatic growth of wireless traffic, which leads to increasing demand on wireless spectrum resources. Current spectrum resource allocation policy causes low efficiency in licensed spectrum bands. Cognitive Radio techniques are a promising solution to the problem of spectrum scarcity and low spectrum utilisation. Especially, OFDM based Cognitive Radio has received much research interest due to its flexibility in enabling dynamic resource allocation. Extensive research has shown how to optimise Cognitive Radio networks in many ways, but th

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