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Dissertations / Theses on the topic 'Broadband communication system'

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Published: 4 June 2021

Last updated: 31 January 2023

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1

Yang, Shao-Shi 1958. "Expert system for broadband network cable plant physical layout." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276832.

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Broadband local area network cable plant design is a time consuming work, it takes lots of computation and it depends a lot on designer's experience. In this thesis the author presents an approach to cable plant design automation, the expert system was implemented in language SCHEME, symbol manipulation was used to generate the data structure (tree) which represent the design results. Signal level simulation can be performed based on the data structure.

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2

Richard, Gaetan C., and Daniel G. Gonzales. "A LOW WINDLOAD BROADBAND FLAPS™ ANTENNA FOR TELEMETRY TRACKING SYSTEMS." International Foundation for Telemetering, 1995. http://hdl.handle.net/10150/608410.

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International Telemetering Conference Proceedings / October 30-November 02, 1995 / Riviera Hotel, Las Vegas, Nevada
The use of low windload FLAPS™ antennas in telemetry tracking systems yields sizable savings in system cost due to the reduced requirements imposed on the pedestal assembly and on the underlying support structure. Traditionally the use of these antennas has been limited to applications in which frequency bandwidths did not exceed 10-13%. This paper describes a variation of the FLAPS™ technology which allows operation over bandwidths in excess of 35% and makes it usable in broadband systems. Two new applications are feasible: one for a ground based telemetry system operating in the 1435-1850 or 1750-2400 MHz band and one for a shipboard satellite communication system operating in the 4000-6000 MHz band.

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3

Kornbau, Nathan Thomas. "Design and analysis of a wideband patch antenna for use with a miniature radar system." Diss., Connect to online resource - MSU authorized users, 2008.

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4

Manaf, Afwarman 1962. "Constraint-based software for broadband networks planninga software framework for planning with the holistic approach /." Monash University, Dept. of Electrical and Computer Systems Engineering, 2000. http://arrow.monash.edu.au/hdl/1959.1/8163.

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5

Manaf, Afwarman 1962. "Constraint-based software for broadband networks planning : a software framework for planning with the holistic approach." Monash University, Dept. of Electrical and Computer Systems Engineering, 2000. http://arrow.monash.edu.au/hdl/1959.1/7754.

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6

Banks, Bradley. "The System Design of a Global Communications System for Military and Commercial use Utilizing High Altitude Unmanned Aerial Vehicles (UAVs) and Terrestrial Local Multipoint Distribution Service (LMDS) Sites." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/32556.

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This thesis proposes the design of the UAV-LMDS communication system for military and commercial use. The UAV-LMDS system is a digital, wireless communication system that provides service using unmanned aerial vehicles (UAVs) flying at 60,000 ft. acting as communication hubs. This thesis provides background information on UAV-LMDS system elements, a financial analysis, theory, link budgets, system component design and implementation issues. To begin the design, we develop link budgets that are used to characterize system parameters. We present detailed antenna designs for the antennas aboard the UAV. We also present communication equipment block diagrams. Included are technical details on military and commercial geostationary satellites used to link transmissions in the system. Implementation issues in the military system are discussed. Mobility and the effects of vegetation in the propagation path are investigated and a co-channel interference study is done. This thesis shows that by using UAVs and LMDS, a viable, broadband, wireless communications system can be created for military and commercial use.
Master of Science

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7

Holzbock, Matthias. "Mobile multimedia service provisioning with collective terminals in broadband satellite networks : an approach for systematic satellite communication system design for service provisioning to collective mobile terminals, including mobile satellite channel modelling, antenna pointing, hierarchical multi-service dimensioning and aeronautical system dimensioning." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5657.

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This work deals with provisioning of communication services via satellites for collectively mobile user groups in a heterogeneous network with several radio access technologies. The extended use of personalised user equipment beyond the coverage of one single terrestrial network by means of a satellite transport link, represents an increasingly important trend in mobile satellite communication. This trend is confirmed by the commercial introduction of broadband satellite communication to mobile terminals mounted on vehicles, trains, ships or aircraft. This work provides a consequent and structured approach for provisioning of services to broadband satellite terminals for mobile user groups and addresses: -- a systematic satellite communication system design process for collective mobile terminals; -- mobile satellite modelling at a wide range of frequencies, including current and potential frequencies; -- an optimised Pointing Acquisition and Tracking (PAT) system design including characterisation of moments for vehicle types of all mobile scenarios; -- a general hierarchical multi-service dimensioning methodology for collectively mobile user groups, including voice, data, and multimedia services; -- an aeronautical system dimensioning scheme with (capacity and handover) requirements analysis and evaluation of results for different satellite scenarios.

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8

Al-Yatama, Anwar. "Quantization and routing in broadband networks." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/15374.

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9

Sarah, Annisa. "Analysis of 5G Mobile Broadband Solutions in Rural and Remote Areas : A Case Study of Banten, Indonesia." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-219912.

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Providing a broadband access anytime and anywhere is one of the visions of the future 5G network. However, deploying a reliable network connection in remote/rural areas has been a challenging task because of its wide area that needed to be covered and a low density of user compared to urban area. Different geography and traffic condition may need different system solution. In this thesis, we analyze several solutions to providing a broadband access network in practical remote and rural area in Banten, Indonesia: Leuwidamar (remote) and Panimbang (rural). Two approaches are discussed, first one is fulfilling futuristic traffic demand by having LTE System, and the second one is by having 5G System. We included three key technology components in a 5G network: occupying wide bandwidth in high frequency, applying UE-Specific Beamforming, and implementing Carrier Aggregation (CA) scheme. We also account a rain attenuation when deploying a network in high operating frequency, since Indonesia has a high rain rate thus it is important to be considered. We compared five cases of solution: Case 1 is Single Carrier (SC) LTE 1.8 GHz system; Case 2 is Carrier Aggregation (CA) LTE 1.8 GHz + 2.6 GHz; Case 3 is SC 5G 15GHz; Case 4 is SC 5G 28 GHz; Case 5 is CA LTE 1.8 GHz + 5G 15 GHz. Basedon the evaluation, in Leuwidamar scenario, Case 5 gives us the least number of BS needed in order to meet the futuristic requirement with only 1.6 x densification from the current network. In Panimbang, the least number of BS neededis offered by two cases, Case 3 and Case 5 without any additional BS needed(1x densification). However, the solution with the lowest energy consumption for both area is Case 3. This is due to the fact that the carrier aggregation scenario needs additional power to generate the second system. Furthermore, if we introduce cell DTX ability in the 5G network, the Case 3 can give us impressive amount of energy saving, with 97% saving for Leuwidamar and 94% saving for Panimbang, compared to Case 1 solution without any DTX Capability.
Att tillhandahålla bredbandsanslutning när som helst och var som helst är en av visionerna för det framtida 5G-nätverket. Att använda en tillförlitlig nätverksanslutning i avlägsna- eller landsbygdsområden har dock varit en utmanande uppgift på grund av det breda området som måste täckas och den låga täthetenav användare jämfört med stadsområden. Olika geografiska förhållanden och trafikförhållanden kan behöva olika systemlösningar. I denna avhandling analyserarvi flera lösningar för att tillhandahåller ett bredbandsnätverk i verkligt avlägset eller landsbygdsområde i Banten, Indonesien: Leuwidamar (avlägset) och Panimbang (landsbygd). Två strategier diskuteras, den första uppfyller framtida trafikbehov genom att ha LTE-system och den andra är genom att ha5G System. Vi inkluderade tre viktiga teknikkomponenter i 5G-nätverk: bredbandbredd och hög frekvens, tillämpar UE-specifik strålformning och implementeringav carrier aggregation (CA). Vi redovisar också en dämpning av regn när nätverket används i hög bärvågsfrekvens, eftersom Indonesien har en hög regnhastighet och det är viktigt att överväga. Vi jämförde fem fall av lösning:Fall 1 är Single Carrier (SC) eller Enkelbärare LTE 1.8 GHz system; Fall 2 är bärareaggregation (CA) LTE 1,8 GHz + 2.6 GHz; Fall 3 är SC 5G 15 GHz;Fall 4 är SC 5G 28 GHz; Fall 5 är CA LTE 1.8 GHz + 5G 15 GHz. Baserat på utvärderingen, i Leuwidamar-scenariot,ger Fall 5 oss det minsta antalet BSsom behövs för att möta det futuristiska kravet med endast 1.6 gångers förtätning från nuvarande nätverk. I Panimbang erbjuds det minsta antalet BS somkrävs i två fall, fall 3 och fall 5 utan ytterligare BS behövs (1 gångers förtätning). Lösningen med den lägsta energiförbrukningen för båda områdena är fall 3. Detta beror på att bäraraggregations scenariot behöver ytterligare effekt för att generera det andra systemet. Om vi introducerar cell DTX-funktionen i 5G-nätverket kan Fall 3 ge oss en imponerande energibesparing, med 97% minskning för Leuwidamar och 94% för Panimbang jämfört med Fall 1-lösning utan DTX-funktion.

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Pereira, Flavio de Melo. "Modelagem, policiamento e escalonamento em redes Ethernet PON." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/260703.

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Orientadores: Dalton Soares Arantes, Nelson Luis Saldanha da Fonseca
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação
Made available in DSpace on 2018-08-07T07:59:05Z (GMT). No. of bitstreams: 1 Pereira_FlaviodeMelo_D.pdf: 3025086 bytes, checksum: 2baf4e2cf83a53c366092610c84e1bdc (MD5) Previous issue date: 2006
Resumo: Neste trabalho, apresentamos uma nova proposta de modelagem, policiamento e escalonamento de tráfego em redes Ethernet com elementos ápticos passivos. Esta proposta visa ao suporte a garantias de desempenho individuais para os fluxos. Propomos um processo envelope denominado Processo de Chegada com Limitante Fracionário para a representação de tráfego multimidia com características fractais. Com base neste modelo, propomos o uso do algoritmo do balde furado para o policiamento do tráfego. Para o escalonamento de tráfego, propomos uma nova política em que a rede reserva uma parcela minima de banda para cada fluxo, sendo que os fluxos com demanda reprimida recebem uma parcela justa dos recursos ociosos. Para esta política, denominada Compartilhamento Proporcional com Reserva de Carga, estabelecemos as condições de estabilidade da rede e apresentamos expressões limitantes para a justiça e para o atraso dos fluxos
Abstract: We propose new framework for traffic modelling, policing and scheduling in Ethernet Passive Optical Networks. This framework aims at providing performance guarantees to individual flows in access networks. We propose a new envelope process called Fractional Bounded Arrival Process for selfsimilar 'multimedia traffic representation. The policing of such a kind of traffic by using the leaky bucket algorithm is also proposed. We present a novel discipline for scheduling the upstream flows in EPON networks. In such a discipline, which is calle4 Proportional Sharing with Load Reservation, each flow is guaranteed a minimum share of bandwidth and the unused bandwidth is fairly distributed among them in proportion to their own demands and priorities. We analyze the performance of the proposed discipline and provide fairness and delay bounds on a per-flow basis
Doutorado
Telecomunicações e Telemática
Doutor em Engenharia Elétrica

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11

Krishnamurthy, Srikanth V. "System aspects of broadband wireless communications /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1997. http://wwwlib.umi.com/cr/ucsd/fullcit?p9820861.

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12

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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13

Ahmadvand, Nima. "Wavelength division multiplexing cross connect networks." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ30066.pdf.

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14

Bean, Nigel Geoffrey. "Statistical multiplexing in broadband communication networks." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282808.

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15

Mysore, Sudhesh M. "Advances in optical power budgets and bandwidth capacity of broadband networks /." free to MU campus, to others for purchase, 1999. http://wwwlib.umi.com/cr/mo/fullcit?p9953885.

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16

雷靜 and Jing Lei. "Frequency synchronization methods for digital broadband receivers." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31244427.

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17

Wu, Peiran. "Transceiver optimization for broadband cooperative wireless communication systems." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/55220.

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Cooperative broadband communications is a promising technique to improve the reliability, throughput, and coverage of the next generation wireless communication systems. Single-carrier transmission with frequency-domain equalization (SC-FDE) and orthogonal frequency-division multiplexing (OFDM) are the prevailing block based broadband schemes widely adopted in major wireless standards. Traditionally, these broadband schemes are deployed for point-to-point communications without the cooperation of any intermediate transmission nodes. However, as the communication systems evolve, both service providers and users are demanding higher data rates and non-seamless connection over large areas. As a result, it is necessary to design novel transceiver architectures that meet these stringent requirements. This dissertation proposes four such cooperative transceiver designs which are tailored for different communication scenarios. Firstly, for single-user SC-FDE broadband systems with multiple multi-antenna amplify-and-forward (AF) relays, we optimize the relay beamforming (rBF) filters and destination equalization filter based on the minimum mean-square error (MSE) criterion under an aggregate relay transmit power constraint. We also propose suboptimal rBF schemes which perform close to the optimal rBF scheme. Subsequently, we investigate single-user SC-FDE broadband MIMO AF relay systems. By exploiting the properties of the block-circulant channel matrices and the majorization theory, the problem is transformed into an equivalent power optimization problem with scalar variables. An alternating optimization algorithm is devised to obtain the optimal solution for the source and relay power allocation. Thirdly, we study a robust transceiver design for multiuser broadband systems with multiple single-antenna AF relays and in the presence of channel estimation errors. Our proposed design treats multiuser SC-FDE and OFDM based systems in a unified manner, where the goal is to maximize the network ABR subject to different types of relay power constraints. Lastly, we propose a robust transceiver design for single-user SC-FDE based multi-hop full-duplex decode-and-forward relay systems. The optimization problem is formulated as the minimization of the sum MSE or maximum MSE of different hops which takes into account the loopback interference of the full-duplex relays. We propose two algorithms to solve the resulting non-convex power allocation problems based on sequential geometric programming and alternating optimization, respectively.
Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate

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18

Ali, Saqib. "Non-linearity mitigation in wireless broadband communication systems." Thesis, Lancaster University, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.543952.

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Yuan, Ping. "Gain, noise and bandwidth of avalanche photodiodes with thin multiplication regions /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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20

Hachfi, Fakhreddine Mohamed. "Future of asynchronous transfer mode networking." CSUSB ScholarWorks, 2004. https://scholarworks.lib.csusb.edu/etd-project/2639.

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The growth of Asynchronous Transfer Mode (ATM) was considered to be the ideal carrier of the high bandwidth applications like video on demand and multimedia e-learning. ATM emerged commercially in the beginning of the 1990's. It was designed to provide a different quality of service at a speed up 100 Gbps for both real time and non real time application. The turn of the 90's saw a variety of technologies being developed. This project analyzes these technologies, compares them to the Asynchronous Transfer Mode and assesses the future of ATM.

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Jain, Nidhi. "Single carrier frequency domain equalization for broadband wireless communications." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5996.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.
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 November 13, 2008) Includes bibliographical references.

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Sun, Fanglei, and 孫芳蕾. "Resource allocation in broadband wireless networks." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B40887868.

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Sun, Fanglei. "Resource allocation in broadband wireless networks." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B40887868.

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Zheng, Yong. "The next generation network issues and trends : a dissertation submitted to Auckland University of Technology as part of the requirements for the degree of Master of Computer and Information Sciences, November 2008 /." Click here to access this resource online, 2008. http://hdl.handle.net/10292/680.

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Thesis (MCIS - Computer and Information Sciences) -- AUT University, 2008.
Includes bibliographical references. Also held in print (viii, 47 leaves ; 30 cm.) in the Archive at the City Campus (T 621.3821 ZHE)

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Desai, Khyati. "Bandwidth optimization using content aliasing of proxy server." [Chico, Calif. : California State University, Chico], 2009. http://hdl.handle.net/10211.4/82.

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Mundi, Anuj V. "PLC-WiFi hybrid broadband Internet deployment and security /." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0006964.

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Løge, Lars. "A satellite system for broadband communications to polar areas." Thesis, Norwegian University of Science and Technology, Department of Electronics and Telecommunications, 2008. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9748.

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Over the last few years the ship traffic in polar areas have been steadily increasing, especially north of Norway. This is largely due to the growing activity in that area and in northern Russia, mainly from oil and gas exploration and production. All indications suggest that this will continue into the foreseeable future. In this report a satellite based system for broadband communications to the area north of 65 northern latitude is discussed. Possible carrier frequency configurations and their propagation properties is analysed, and it is found that Ka-band, 20/30GHz, will give best performance. Various satellite orbits are then discussed, and a constellation that give continueous coverage and allow for easy handover is designed. It consists of four satellites in Molniya orbits with an eccentricity of approximately 0.72. Each satellite is then operational and quasi-stationary for six hours of every orbit, with two satellites above the coverage area at any time. Solutions for the satellite antennas are considered, and link budgets are presented. Active phased arrays are found to provide the best performance. A total uplink capacity of 1.6 Gbps is teoretically possible with a user terminal output power of 100W, but it is not deemed realizable. Instead a configuration with a total capacity on both uplink and downlink of about 1 Gbps is suggested. At the end of the report a range of issues, related to the realization of the satellite system, requiring future attention is summarized and briefly discussed.

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Zhu, Yu. "Frequency domain equalization for single carrier broadband wireless communications /." View abstract or full-text, 2007. http://library.ust.hk/cgi/db/thesis.pl?ECED%202007%20ZHUY.

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Mahdy, Ahmed M. "A broadband infrastructure for ad hoc networks with optical wireless." [Lincoln, Neb. : University of Nebraska-Lincoln], 2005. http://0-www.unl.edu.library.unl.edu/libr/Dissertations/2005/MahdyDis.pdf.

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Wang, Jun. "Interface assignment, bandwidth allocation and scheduling for wireless mesh networks /." access full-text access abstract and table of contents, 2009. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?phd-cs-b30082705f.pdf.

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Thesis (Ph.D.)--City University of Hong Kong, 2009.
"Submitted to Department of Computer Science in partial fulfillment of the requirements for the degree of Doctor of Philosophy." Includes bibliographical references (leaves [104]-116)

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Adas, Abdelnaser M. "Supporting multimedia traffic in broadband networks." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/14849.

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Pitsillides, Andreas, and Andreas Pitsillides@ucy ac cy. "Control structures and techniques for broadband-ISDN communication systems." Swinburne University of Technology, 1993. http://adt.lib.swin.edu.au./public/adt-VSWT20060321.132650.

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A structured organisation of tasks, possibly hierarchical, is necessary in a BISDN network due to the complexity of the system, its large dimension and its physical distribution in space. Feedback (possibly supplemented by feedforward) control has an essential role in the effective and efficient control of BISDN. Additionally, due to the nonstationarity of the network and its complexity, a number of different (dynamic) modelling techniques are required at each level of the hierarchy. Also, to increase the efficiency of the network and allow flexibility in the control actions (by extending the control horizon) the (dynamic) tradeoff between service-rate, buffer-space, cell-delay and cell-loss must be exploited. In this thesis we take account of the above and solve three essential control problems, required for the effective control of BISDN. These solutions are suitable for both stationary and nonstationary conditions. Also, they are suitable for implementation in a decentralised coordinated form, that can form a part of a hierarchical organisation of control tasks. Thus, the control schemes aim for global solutions, yet they are not limited by the propagation delay, which can be high in comparison to the dynamics of the controlled events. Specifically, novel control approaches to the problems of Connection Admission Control (CAC), flow control and service-rate control are developed. We make use of adaptive feedback and adaptive feedforward control methodologies to solve the combined CAC and flow control problem. Using a novel control concept, based on only two groups of traffic (the controllable and uncontrollable group) we formulate a problem aimed at high (unity) utilisation of resources while maintaining quality of service at prescribed levels. Using certain assumptions we have proven that in the long term the regulator is stable and that it converges to zero regulation error. Bounds on operating conditions are also derived, and using simulation we show that high utilisation can be achieved as suggested by the theory, together with robustness for unforeseen traffic connections and disconnections. Even with such a high efficiency and strong properties on the quality of service provided, the only traffic descriptor required from the user is that of the peak rate of the uncontrollable traffic. A novel scheme for the dynamic control of service-rate is formulated, using feedback from the network queues. We use a unified dynamic fluid flow equation to describe the virtual path (VP) and hence formulate two illustrative examples for the control of service-rate (at the VP level). One is a nonlinear optimal multilevel implementation, that features a coordinated decentralised solution. The other is a single level implementation that turns out to be computationally complex. Therefore, for the single level implementation the costate equilibrium solution is also derived. For the optimal policies derived, we discuss their implementation complexity and provide implementable solutions. Their performance is evaluated using simulation. Additionally, using an ad hoc approach we have extended previous published works on the decentralised coordinated control of large scale nonlinear systems to also deal with time-delayed systems.

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Chu, Carlson. "Development of broadband information infrastructure in Hong Kong /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19876804.

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Wu, Tianyu. "Design and analysis of wireless communication systems with limited CSIT feedback /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?ECED%202009%20WUT.

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Yan, Hongbo. "Parameter estimation and receiver design for overlay communication systems /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/5828.

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Posey, Brian Wenford Jesse. "Dynamic Time Metered Delivery (DTMD) : potential effect on the goals of the Federal Communications Commission's "National Broadband Plan."." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/70805.

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Thesis (S.M. in Engineering and Management)--Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 99-101).
The Federal Communications Commission (FCC) has stated that broadband is the great infrastructure challenge of the early 21st century. On March 16, 2010 the FCC published "Connecting America: The National Broadband Plan". One of the goals of the FCC Plan is having 1OOM U.S. households with affordable access to actual download speeds of at least 100Mbps and actual upload speeds of at least 50Mbps. The FCC also has the goal that every American should have affordable access to robust broadband (5Mbps) service. This paper examines the potential use of Dynamic Time Metered Delivery (DTMD) in the furtherance of these goals using data and analysis from public sources and TelePulse Technologies Corporation (inventors of DTMD). The key questions the research proposes to answer are: * Using Hypercube analysis, how would key elements of the value chain for phone companies categorize and react to DTMD as an innovation? * Are there specific goals of the FCC National Broadband Plan that might be directly furthered by the use of DTMD? By decreasing the price of broadband performance, DTMD can further FCC goals for broadband adoption in rural communities, less dense suburban communities and low income urban communities. With DTMD and without capital expenditure, the current broadband un-served can be enabled with a broadband speed of minimum 5Mbps on their current phone lines. The cost for a phone company to provide the service goes from being a capital expenditure to a consumable expenditure. In the case of broadband deployment, for rural communities, less dense urban communities and low income urban communities, private sector business goals and public sector goals conflict. Various parts of a broadband provider's value chain may see needed innovation as potentially disruptive, lacking a robust total market, or lacking a high degree of interest by the service provider (the perceived driver of market volume). While private sector investment in broadband has increased, that funding is focused on more at improving current investment with incremental improvement to market proven technologies. FCC driven investment opportunities and incentives to innovate for the unserved should include opportunities to innovate with technologies that are not fully market proven.
by Brian Wenford Jesse Posey.
S.M.in Engineering and Management

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Pace, Howard. "An analysis of a broadband multicarrier CDMA cellular communications system." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1998. http://handle.dtic.mil/100.2/ADA354466.

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Thesis (M.S. in Electrical Engineering) Naval Postgraduate School, September 1998.
"September 1998." Thesis advisor(s): Tri T. Ha, R. Clark Robertson. Includes bibliographical references (p. 97). Also available online.

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Wilkinson, Martha L. "Bridging the digital divide : framing whiteness /." View online, 2010. http://repository.eiu.edu/theses/docs/32211131575047.pdf.

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Kozak, Nadine Irène. "On the last mile the effects of telecommunications regulation and deregulation in the rural western United States and Canada /." Diss., [La Jolla] : University of California, San Diego, 2010. http://wwwlib.umi.com/cr/ucsd/fullcit?p3390098.

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Thesis (Ph. D.)--University of California, San Diego, 2010.
Title from first page of PDF file (viewed Feb. 22, 2010). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 421-450).

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Gutiérrez, González Ismael. "Adaptive Communications for Next Generation Broadband Wireless Access Systems." Doctoral thesis, Universitat Ramon Llull, 2009. http://hdl.handle.net/10803/9141.

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Un dels aspectes claus en el disseny i gestió de les xarxes sense fils d'accés de banda ampla és l'ús eficient dels recursos radio. Des del punt de vista de l'operador, l'ample de banda és un bé escàs i preuat que s´ha d'explotar i gestionar de la forma més eficient possible tot garantint la qualitat del servei que es vol proporcionar. Per altra banda, des del punt de vista del usuari, la qualitat del servei ofert ha de ser comparable al de les xarxes fixes, requerint així un baix retard i una baixa pèrdua de paquets per cadascun dels fluxos de dades entre la xarxa i l'usuari. Durant els darrers anys s´han desenvolupat nombroses tècniques i algoritmes amb l'objectiu d'incrementar l'eficiència espectral. Entre aquestes tècniques destaca l'ús de múltiples antenes al transmissor i al receptor amb l'objectiu de transmetre diferents fluxos de dades simultaneament sense necessitat d'augmentar l'ample de banda. Per altra banda, la optimizació conjunta de la capa d'accés al medi i la capa física (fent ús de l'estat del canal per tal de gestionar de manera optima els recursos) també permet incrementar sensiblement l'eficiència espectral del sistema.

L'objectiu d'aquesta tesi és l'estudi i desenvolupament de noves tècniques d'adaptació de l'enllaç i gestió dels recursos ràdio aplicades sobre sistemes d'accés ràdio de propera generació (Beyond 3G). Els estudis realitzats parteixen de la premissa que el transmisor coneix (parcialment) l'estat del canal i que la transmissió es realitza fent servir un esquema multiportadora amb múltiples antenes al transmisor i al receptor. En aquesta tesi es presenten dues línies d'investigació, la primera per casos d'una sola antenna a cada banda de l'enllaç, i la segona en cas de múltiples antenes. En el cas d'una sola antena al transmissor i al receptor, un nou esquema d'assignació de recursos ràdio i priorització dels paquets (scheduling) és proposat i analitzat integrant totes dues funcions sobre una mateixa entitat (cross-layer). L'esquema proposat té com a principal característica la seva baixa complexitat i que permet operar amb transmissions multimedia. Alhora, posteriors millores realitzades per l'autor sobre l'esquema proposat han permès també reduir els requeriments de senyalització i combinar de forma óptima usuaris d'alta i baixa mobilitat sobre el mateix accés ràdio, millorant encara més l'eficiència espectral del sistema. En cas d'enllaços amb múltiples antenes es proposa un nou esquema que combina la selecció del conjunt optim d'antenes transmissores amb la selecció de la codificació espai- (frequència-) temps. Finalment es donen una sèrie de recomanacions per tal de combinar totes dues línies d'investigació, així con un estat de l'art de les tècniques proposades per altres autors que combinen en part la gestió dels recursos ràdio i els esquemes de transmissió amb múltiples antenes.
Uno de los aspectos claves en el diseño y gestión de las redes inalámbricas de banda ancha es el uso eficiente de los recursos radio. Desde el punto de vista del operador, el ancho de banda es un bien escaso y valioso que se debe explotar y gestionar de la forma más eficiente posible sin afectar a la calidad del servicio ofrecido. Por otro lado, desde el punto de vista del usuario, la calidad del servicio ha de ser comparable al ofrecido por las redes fijas, requiriendo así un bajo retardo y una baja tasa de perdida de paquetes para cada uno de los flujos de datos entre la red y el usuario. Durante los últimos años el número de técnicas y algoritmos que tratan de incrementar la eficiencia espectral en dichas redes es bastante amplio. Entre estas técnicas destaca el uso de múltiples antenas en el transmisor y en el receptor con el objetivo de poder transmitir simultáneamente diferentes flujos de datos sin necesidad de incrementar el ancho de banda. Por otro lado, la optimización conjunta de la capa de acceso al medio y la capa física (utilizando información de estado del canal para gestionar de manera óptima los recursos) también permite incrementar sensiblemente la eficiencia espectral del sistema.
El objetivo de esta tesis es el estudio y desarrollo de nuevas técnicas de adaptación del enlace y la gestión de los recursos radio, y su posterior aplicación sobre los sistemas de acceso radio de próxima generación (Beyond 3G). Los estudios realizados parten de la premisa de que el transmisor conoce (parcialmente) el estado del canal a la vez que se considera que la transmisión se realiza sobre un sistema de transmisión multiportadora con múltiple antenas en el transmisor y el receptor. La tesis se centra sobre dos líneas de investigación, la primera para casos de una única antena en cada lado del enlace, y la segunda en caso de múltiples antenas en cada lado. Para el caso de una única antena en el transmisor y en el receptor, se ha desarrollado un nuevo esquema de asignación de los recursos radio así como de priorización de los paquetes de datos (scheduling) integrando ambas funciones sobre una misma entidad (cross-layer). El esquema propuesto tiene como principal característica su bajo coste computacional a la vez que se puede aplicar en caso de transmisiones multimedia. Posteriores mejoras realizadas por el autor sobre el esquema propuesto han permitido también reducir los requisitos de señalización así como combinar de forma óptima usuarios de alta y baja movilidad. Por otro lado, en caso de enlaces con múltiples antenas en transmisión y recepción, se presenta un nuevo esquema de adaptación en el cual se combina la selección de la(s) antena(s) transmisora(s) con la selección del esquema de codificación espacio-(frecuencia-) tiempo. Para finalizar, se dan una serie de recomendaciones con el objetivo de combinar ambas líneas de investigación, así como un estado del arte de las técnicas propuestas por otros autores que combinan en parte la gestión de los recursos radio y los esquemas de transmisión con múltiples antenas.
In Broadband Wireless Access systems the efficient use of the resources is crucial from many points of views. From the operator point of view, the bandwidth is a scarce, valuable, and expensive resource which must be exploited in an efficient manner while the Quality of Service (QoS) provided to the users is guaranteed. On the other hand, a tight delay and link quality constraints are imposed on each data flow hence the user experiences the same quality as in fixed networks. During the last few years many techniques have been developed in order to increase the spectral efficiency and the throughput. Among them, the use of multiple antennas at the transmitter and the receiver (exploiting spatial multiplexing) with the joint optimization of the medium access control layer and the physical layer parameters.
In this Ph.D. thesis, different adaptive techniques for B3G multicarrier wireless systems are developed and proposed focusing on the SS-MC-MA and the OFDM(A) (IEEE 802.16a/e/m standards) communication schemes. The research lines emphasize into the adaptation of the transmission having (Partial) knowledge of the Channel State Information for both; single antenna and multiple antenna links. For single antenna links, the implementation of a joint resource allocation and scheduling strategy by including adaptive modulation and coding is investigated. A low complexity resource allocation and scheduling algorithm is proposed with the objective to cope with real- and/or non-real- time requirements and constraints. A special attention is also devoted in reducing the required signalling. However, for multiple antenna links, the performance of a proposed adaptive transmit antenna selection scheme jointly with space-time block coding selection is investigated and compared with conventional structures. In this research line, mainly two optimizations criteria are proposed for spatial link adaptation, one based on the minimum error rate for fixed throughput, and the second focused on the maximisation of the rate for fixed error rate. Finally, some indications are given on how to include the spatial adaptation into the investigated and proposed resource allocation and scheduling process developed for single antenna transmission.

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Johansson, Leif Albin. "Broadband millimetre-wave radio over fibre systems." Thesis, University College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272419.

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42

Sinha, Amit Kumar Medhi Deepankar. "Methodologies and analyses of broadband access network traffic." Diss., UMK access, 2007.

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Thesis (Ph.D.)--School of Computing and Engineering. University of Missouri--Kansas City, 2007.
"A dissertation in computer networking and telecommunications networking." Advisor: Deep Medhi. Typescript. Vita. Title from "catalog record" of the print edition Description based on contents viewed July 30, 2008. Includes bibliographical references (leaves 94-100). Online version of the print edition.

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Tan, Zhijie. "The broadband ISDN source simulator /." Title page, abstract and contents only, 1991. http://web4.library.adelaide.edu.au/theses/09ENS/09enst1612.pdf.

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44

Stevens, Irena. "Policy implications of municipal investment in Georgia's wireline broadband networks." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/49081.

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The Community Broadband Investment Act, introduced in the Georgia legislature in 2012 and 2013 is a reflection of a broader national debate over the role of government investment in broadband infrastructure. The bill would limit local governments' ability to invest in broadband infrastructure for their communities because of arguments that government entry into the telecommunications sector crowds-out private competition, does not serve the public adequately, and lacks a comprehensive business model or best practices. A closer look at the history of utility regulation and various economic perspectives on the proper government role in utility provision reveals that government has had an extensive historical role in utility infrastructure investment and regulation, and several economic doctrines support the conclusion that government can be helpful in facilitating effective broadband service to their communities. Case studies of different models of municipal broadband networks in Georgia reveal that government entry can facilitate private sector competition, often provides quality service, and has a set of best practices. The success of municipal broadband reveals an evolution in the approach to telecommunications regulation from a regulated monopoly approach to a public-private cooperation approach which considers public participation with private entities on a dynamic scale. Government-entry into the broadband market was a rational decision for several Georgia communities due to their unique set of circumstances, and while municipal broadband may not be the answer to many communities' problems with meeting public demand, communities should be allowed to maintain flexibility in their decision-making about how to best serve their residents, effectively allowing them to decide which combination of public and private advantages they can leverage to meet the demand of their communities in relation to their unique local characteristics.

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Nan, Zhou. "Dynamic resource management for next generation broadband wireless communication systems." Thesis, University of Liverpool, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.539491.

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Ghiaasi-Hafezi, Golsa. "Broadband Low Noise Frequency Synthesizers for Future Wireless Communication Systems." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1253600913.

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Chen, Wei. "Signal processing for optical performance monitoring and impairment mitigation." Connect to thesis, 2006. http://repository.unimelb.edu.au/10187/1713.

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Optical performance monitoring is essential for managing optical networks. One important quantity to monitor is the optical signal-to-noise ratio (OSNR). And in high bit rate fiber optical systems operating at 10 Gb/s or beyond, compensating optical impairments becomes important. In this thesis, we investigate OSNR monitoring using beat noise and present two new OSNR monitoring techniques. We propose an OSNR monitoring technique using uncorrelated beat noise and show by experiment for a 10 Gb/s system that in the OSNR range from 10 dB to 30 dB, the proposed OSNR monitoring scheme has a measurement error of less than 0.5 dB. Then, we propose and experimentally demonstrate for the first time an OSNR monitoring technique using beat noise for optical packet switched networks which performs monitoring on a packet basis. The response time of the OSNR monitor can be around 10 ns and the OSNR measurement error is found to be less than 0.6 dB for OSNR from 10 dB to 30 dB. We also explore chromatic dispersion and polarization-mode dispersion (PMD) mitigation using Viterbi equalization in 10 Gb/s nonreturn-to-zero differential phase-shift keying (NRZ-DPSK) and differential quadrature phase-shift keying (NRZ-DQPSK) systems. We show through simulations that using Viterbi equalizers improves the performance of NRZ-OOK, NRZ-DPSK and NRZ-DQPSK receivers. For NRZ-DQPSK receiver with a Viterbi equalizer, the chromatic dispersion tolerance is about 5048 ps/nm and the PMD tolerance is about 160 ps at 3 dB OSNR penalty.

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Jiyapanichkul, Prasit, and jiyapanichkul@yahoo com. "Resource management in broadband multimedia networks." Swinburne University of Technology. Laboratory for Telecommunication Research, 1999. http://adt.lib.swin.edu.au./public/adt-VSWT20050610.100950.

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This research deals with optimal resource management in an overloaded broadband multimedia network. Optimisation is with respect to user satisfaction, where user satisfaction reflects both the quality of service experienced by connected users and the dissatisfaction of users blocked from access to the network. The research focuses on Asynchronous Transfer Mode (ATM) networks and the Internet, because these are the dominant emerging broadband networks which present some fundamental unsolved problems, related to the sharing of resources between mixed traffic types. ATM networks use conservative admission control, which protects network resources and ensures a high level of service for those admitted to the network, but results in low network efficiency because of low utilisation of resources due to blocking of many potential users. The Internet does not use admission control, with the result that performance degrades progressively as load increases. This causes frustration among users, and lowers the network efficiency due to high levels of congestion. We propose an optimisation model for each network (ATM networks and the Internet)which is intended to represent the distribution and consumption of key network resources by different traffic types. The model is aimed at maximising performance such that users admitted to the network are offered no less than some minimum acceptable level of quality of service (QoS). The solution is a set of traffic flow rates on each path which results in maximising an objective function value (revenue based on network operator interest or throughput based on customer interest) for a given network configuration with given user demand. As an example using the ATM network model, we illustrate the application of the model to an ATM network carrying both connection oriented and connectionless traffic. We explore the optimal response to a link failure which in turn causes node overload. As an example using the Internet model, we consider an overloaded network with link bottlenecks and an overloaded Web server, and explore the effect of transferring some server capacity to a mirror site and a proxy server. For real-time traffic control, the optimisation model is used to assign quotas for bandwidth or connections to selected paths. A control algorithm is implemented to provide maximum performance by admitting requests within the quotas which are obtained from the optimisation model. In an ATM network simulation, the algorithm is used to manage the virtual path (VP) pool in a network which suffers a link failure. A comparison is made between fixed virtual path management (FVPM) and dynamic virtual path management (DVPM), comparing the revenue achieved by each. This illustrates how DVPM adapts the VP pool in a robust fashion to achieve maximum revenue in the face of a link failure. However, the transient response suggests that benefit could be obtained using non-steady-state solutions. The model is extended by taking network state and traffic parameters into account to control changes in the VP pool to recognise limits to the rate at which traffic can be moved (through the natural birth-death processes). This scheme is called state dependent virtual path management (SDVPM). Performance evaluation of the new model shows that SDVPM achieves higher revenue than DVPM when the network suffers a link failure that requires a major change to the VP pool. In an Internet simulation, two algorithms are compared for control of access to a proxy server and a set of primary servers. An algorithm based on optimal flow solutions provides substantially better network performance than a localised heuristic algorithm. In each simulation case (ATM and Internet examples), the performance using a control system based on the steady state optimum flow model is close to the ideal optimal result.

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Chen, Xiaoqiang. "Congestion control and routing in integrated broadband networks." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240046.

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Mertzanis, Ioannis. "QOS provisioning for broadband satellite-ATM multimedia networks." Thesis, University of Surrey, 1999. http://epubs.surrey.ac.uk/773030/.

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This work is motivated by the current trends in future broadband communication networks. On the one hand, the latest developments and experimentation with the Asynchronous Transfer mode (ATM) technology shows that that ATM is going to be the future transport mechanism in many private and public networks. This is driven by the need to efficiently support a large population of widebandlbroadband users with different data traffic characteristics and certain Quality of Service (QoS) guarantees. On the other hand, the interest in satellites and their role in the future broadband multimedia communications systems, has grown considerably since they can very quickly and economically extend the boundaries of the terrestrial mobile and fixed networks coverage. On-board satellite signal regeneration and' ATM-like' switching is part of the latest experimental developments by many payload manufacturers. In this thesis, the focus is on the Grade of Service (GoS) and QoS provisioning in future broadband satellite multimedia systems by introducing new means for their performance evaluation. The investigation includes modelling techniques for both Geostationary (GEO) and non-GEO systems. An extensive set of representative results derived analytically and by simulation are presented assuming different mixed traffic scenarios. A new methodology for the Available Bit Rate (ABR) service class capacity estimation and the CAC strategy that needs to be adopted in S-ATM systems is developed. Moreover, the performance evaluation of bandwidth reservation techniques for non-GEO satellite constellations is investigated and new rules for maintaining specified GoS performance are proposed. This work contributes towards the definition of a satellite network infrastructure that best satisfies the requirements of an integrated solution with Broadband-Integrated Services Digital Network (B-ISDN).

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