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Dissertations / Theses on the topic 'Broadband integrated services digital network'
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Jahromi, Masaud M. J. "ATM based service independent system." Thesis, University of Kent, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250331.
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Omundsen, Daniel (Daniel Simon) Carleton University Dissertation Engineering Electrical. "A pipelined, multi-processor architecture for a connectionless server for broadband ISDN." Ottawa, 1992.
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Serbest, Yetik. "Resource management of integrated services networks /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.
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Myronyk, James David Nicholas Carleton University Dissertation Information and Systems Science. "The effectiveness of a contemporary workstation architecture in servicing a broadband integrated services digital network workload." Ottawa, 1991.
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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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Jiao, QingZhong. "Admission control and congestion control in ATM/CDMA network." Thesis, Connect to online version, 1995. http://0-wwwlib.umi.com.mercury.concordia.ca/cr/concordia/fullcit?pMQ90887.
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Lin, Rui Carleton University Dissertation Engineering Electrical. "Multiplexing, cell loss and traffic controls in ATM networks." Ottawa, 1992.
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Miller, W. "The design and application of power line carrier communication and remote meter reading for use in integrated services and broadband-integrated services digital networks." Thesis, Open University, 1997. http://oro.open.ac.uk/57707/.
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Sekercioglu, Ahmet, and ahmet@hyperion ctie monash edu au. "Fuzzy logic control techniques and structures for Asynchronous Transfer Mode (ATM) based multimedia networks." Swinburne University of Technology, 1999. http://adt.lib.swin.edu.au./public/adt-VSWT20050411.130014.
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The research presented in this thesis aims to demonstrate that fuzzy logic is a useful tool for developing mechanisms for controlling traffc flow in ATM based multimedia networks to maintain quality of service (QoS) requirements and maximize resource utilization. The study first proposes a hierarchical, multilevel control
structure for ATM networks to exploit the reported strengths of fuzzy logic at various
control levels. Then, an extensive development and evaluation is presented for a subset of the proposed control architecture at the congestion control level.
An ATM based multimedia network must have quite sophisticated traffc control capabilities to effectively handle the requirements of a dynamically varying mixture of voice, video and data services while meeting the required levels of performance.
Feedback control techniques have an essential role for the effective and efficient management of the resources of ATM networks. However, development of conventional feedback control techniques relies on the availability of analytical system models. The characteristics of ATM networks and the complexity of service
requirements cause the analytical modeling to be very difficult, if not impossible.
The lack of realistic dynamic explicit models leads to substantial problems in developing
control solutions for B-ISDN networks. This limits the ability of conventional techniques to directly address the control objectives for ATM networks. In the literature, several connection admission and congestion control methods for B-ISDN networks have been reported, and these have achieved mixed success. Usually they either assume heavily simplified models, or they are too complicated to implement, mainly derived using probabilistic (steady-state) models.
Fuzzy logic controllers, on the other hand, have been applied successfully to the task of controlling systems for which analytical models are not easily obtainable.
Fuzzy logic control is a knowledge-based control strategy that can be utilized when an explicit model of a system is not available or, the model itself, if available, is highly complex and nonlinear. In this case, the problem of control system design is based on qualitative and/or empirically acquired knowledge regarding the operation of the system. Representation of qualitative or empirically acquired knowledge in a fuzzy logic controller is achieved by linguistic expressions in the form of fuzzy relational equations. By using fuzzy relational equations, classifications related to system parameters can be derived without explicit description.
The thesis presents a new predictive congestion control scheme, Fuzzy Explicit Rate Marking (FERM), which aims to avoid congestion, and by doing so minimize the cell losses, attain high server utilization, and maintain the fair use of links.
The performance of the FERM scheme is extremely competitive with that of control schemes developed using traditional methods over a considerable period of time.
The results of the study demonstrate that fuzzy logic control is a highly effective design tool for this type of problems, relative to the traditional methods. When controlled systems are highly nonlinear and complex, it keeps the human insight alive and accessible at the lower levels of the control hierarchy, and so higher levels
can be built on this understanding.
Additionally, the FERM scheme has been extended
to adaptively tune (A-FERM) so that continuous automatic tuning of the parameters can be achieved, and thus be more adaptive to system changes leading to better utilization of network bandwidth. This achieves a level of robustness that is not exhibited by other congestion control schemes reported in the literature.
In this work, the focus is on ATM networks rather than IP based networks. For historical reasons, and due to fundamental philosophical differences in the (earlier) approach to congestion control, the research for control of TCP/IP and ATM based networks proceeded separately. However, some convergence between them has recently become evident. In the TCP/IP literature proposals have appeared on active queue management in routers, and Explicit Congestion Notication (ECN) for IP. It is reasonably expected that, the algorithms developed in this study will be applicable to IP based multimedia networks as well.
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Smith, Quentin D. "AN EVOLUTIONARY APPROACHTO A COMMUNICATIONS INFRASTRUCTURE FOR INTEGRATED VOICE, VIDEO AND HIGH SPEED DATA FROM RANGETO DESKTOP USING ATM." International Foundation for Telemetering, 1993. http://hdl.handle.net/10150/608864.
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International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, NevadaAs technology progresses we are faced with ever increasing volumes and rates of raw and processed telemetry data along with digitized high resolution video and the less demanding areas of video conferencing, voice communications and general LAN-based data communications. The distribution of all this data has traditionally been accomplished by solutions designed to each particular data type. With the advent of Asynchronous Transfer Modes or ATM, a single technology now exists for providing an integrated solution to distributing these diverse data types. This allows an integrated set of switches, transmission equipment and fiber optics to provide multi-session connection speeds of 622 Megabits per second. ATM allows for the integration of many of the most widely used and emerging low, medium and high speed communications standards. These include SONET, FDDI, Broadband ISDN, Cell Relay, DS-3, Token Ring and Ethernet LANs. However, ATM is also very well suited to handle unique data formats and speeds, as is often the case with telemetry data. Additionally, ATM is the only data communications technology in recent times to be embraced by both the computer and telecommunications industries. Thus, ATM is a single solution for connectivity within a test center, across a test range, or between ranges. ATM can be implemented in an evolutionary manner as the needs develop. This means the rate of capital investment can be gradual and older technologies can be replaced slowly as they become the communications bottlenecks. However, success of this evolution requires some planning now. This paper provides an overview of ATM, its application to test ranges and telemetry distribution. A road map is laid out which can guide the evolutionary changeover from today's technologies to a full ATM communications infrastructure. Special applications such as the support of high performance multimedia workstations are presented.
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Thuppal, Rajagopalan. "On pipelined multistage interconnection networks." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0002/MQ36185.pdf.
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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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Yan, Zhaohui. "Performance Analysis of A Banyan Based ATM Switching Fabric with Packet Priority." PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/5199.
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Since the emergence of the Asynchronous Transfer Mode ( A TM ) concept, various switching architectures have been proposed. The multistage interconnection networks have been proposed for the switching architecture under the A TM environment. In this thesis, we propose a new model for the performance analysis of an A TM switching fabric based on single-buffered Banyan network. In this model, we use a three-state, i.e., "empty", "new" and "blocked" Markov chain model to describe the behavior of the buffer within a switching element. In addition to traditional statistical analysis including throughput and delay, we also examine the delay variation. Performance results show that the proposed model is more accurate in describing the switch behavior under uniform traffic environment in comparison with the "two-state" Markov chain model developed by Jenq, et. al.[4] [6] . Based on the "three-state" model, we study a packet priority scheme which gives the blocked packet higher priority to be routed forward during contention. It is found that the standard deviation of the network delay is reduced by about 30%.
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Chen, Zhao. "Differentiated services in an integrated broadband network." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26602.
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This thesis evaluates the Differentiated Services (diffserv) mechanism proposed by IETF to provide QoS and resource reservation under bursty web traffic. Particularly, the performance of Weighted Fair Queuing (WFQ) algorithm is studied, using two-node and multiple link network configuration. A self-similar realistic web workload model generating aggregation of web-accessing traffic flows is developed and used to evaluate the performance, as well as other multimedia applications. Our analysis reveals that due to the burstiness of web traffic, diffserv cannot achieve all the desired QoS guarantees, especially packet delay and jitter. Three mainstream multimedia applications are modeled and analyzed in the Diffserv network with our realistic web traffic model as background traffic. Finally, our performance analysis also demonstrates that in more realistic network environment, only bi-directional resource reservation can provide to the customers QoS guarantees in Diffserv network. Several scenarios of aggregations of applications traffic flows are used to evaluate the performance, such as short-lived web traffic and non-adaptive UDP traffic.
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Johnson, Robert. "On the proposed integrated services digital network /." Online version of thesis, 1987. http://hdl.handle.net/1850/10141.
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Christoffersen, Daniel Arthur 1964. "Internetworking the defense data network with an integrated services digital network." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276716.
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The motivation behind this thesis is to develop a procedure for internetworking the Defense Data Network (DDN) with an Integrated Services Digital Network (ISDN). To accomplish this internetworking problem an integrated gateway must be designed to compensate for incompatibilities between the two networks. This thesis approaches this problem by giving a description of the two networks, DDN and ISDN, and also presenting a general approach to gateway design. This information is then combined into a detailed procedure for implementing a gateway to internetwork the DDN and ISDN. This is followed by a discussion of the practical aspects of the DDN/ISDN internetworking problem.
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Alvarez, Isidro. "Development of a security network (SECNET) based on integrated services digital network (ISDN)." FIU Digital Commons, 1996. http://digitalcommons.fiu.edu/etd/2064.
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The progress in the computing and communication industries together with the fast evolution of the semiconductor industry has made possible advances in the communications field. These advances have been used by other related applications to improve the services that they bring about. On the other hand, business crimes have increased three digits orders of magnitude in one decade, making from 20% to 30% of small businesses fail. These conditions demand new solutions to make security systems more reliable and efficient.
The present work combines ISDN as a network with a security system to create a security network (SECNET). It will create intelligent and distributed security devices that communicate information from different places to a main security office by using the ISDN lines available at the premises. This work also introduces a new idea of individual equipment protection.
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Calnan, Roger Stuart. "The integration of voice within a digital network." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253735.
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Barnette, Mark Francis. "An assessment of the Integrated Services Digital Network in support of command." Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/26894.
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This thesis explores the technology of the Integrated Services Digital Network (ISDN) and assess its value to strategic U.S. command, control, communications and intelligence (C3I). The author provides a brief overview of how telecommunications systems support the concept of C2 and what some of the problems are in this area. A review of the ISDN concept is provided which serves as the foundation for assessing the significance of ISDN to the military and its value in meeting the particular requirements associated with C3I telecommunication networks. Some of the more substantive issues of transitioning to ISDN are addressed such as network management and security. The author concludes that ISDN is an attractive long-term goal architecture. They are, however, several significant areas (applications, network management requirements, security architecture) that must be proactively addressed before ISDN is suitable for application in the C3I environment. (fr)
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Ngo, Benjamin Bin-yong Carleton University Dissertation Engineering Electrical. "Applications of matrix-analytic solutions to queueing systems arising in integrated services digital network." Ottawa, 1990.
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McBride, Andrew. "A hybrid voice/text electronic mail system : an application of the integrated services digital network /." Online version of thesis, 1994. http://hdl.handle.net/1850/12158.
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Han, Ki Jun. "A high-speed data/voice integrated campus backbone network: Design and simulation." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184297.
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This dissertation is concerned with the design of a high speed fiber optic campus backbone network which not only provides a high bandwidth connection to various LANs, PBXs, ISDNs, supercomputers, and other high speed computing facilities but also offers an integrated service of voice and data. The campus backbone network is based on an optical fiber dual ring structure. A new token ring protocol based on the IEEE 802.5 standard is proposed as the medium access protocol for the backbone network. In the proposed token ring network, the token holder transmits packets in an exhaustive way when no other nodes want to transmit voice packets. If any node has voice packets waiting for transmission, the token holder can transmit only a single packet during its access opportunity. In this way, not only can the voice delay be bounded at high voice traffic intensities, but a high data throughput can be achieved at low voice traffic intensities. The potential use of Time Division Multiplexing (TDM) was also considered, but the TDM technique was found to be less suitable for our campus environment mainly due to its low efficiency in bursty environments and complex hardware requirements. The backbone network was simulated using the Simscript II.5 discrete event simulation language. The simulation results indicated that the proposed token ring protocol provides satisfactory performances in every respect. A network interface unit (NIU) was designed, which consists of optical transmitter, receiver, and fault tolerance mechanisms as well as the protocol engine. The optimal values of major parameters for the NIU design were determined by the simulation.
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Yu, Jie Petropulu Athina P. "Modeling of high-speed wireline and wireless network traffic /." Philadelphia, Pa. : Drexel University, 2005. http://dspace.library.drexel.edu/handle/1860/469.
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Thrasher, Evelyn Byrd Terry Anthony. "Examining strategic fit for the interorganizational network an empirical investigation of the health care integrated delivery system /." Auburn, Ala., 2006. http://hdl.handle.net/10415/1300.
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Darmaros, Theodore. "Implementing the Integrated Services Digital Network (ISDN) : prospects and problems in the realisation of a telecommunications concept." Thesis, University of Sussex, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297115.
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The present thesis discusses the interrelation between technical change, institutional transformation and public policy in the context of the planning and early development of new public telecommunications infrastructures. Efforts to implement ISDN have featured prominently in the above developments during the 1980s, thus offering the empirical ground on which the thesis focuses. Specifically, the thesis aims to identify the main critical factors that have been shaping the realisation of ISDN nationally and internationally and assess their impact in its early commercialisation stage. A number of analytical concepts provide the background for the above exercise: the Schumpeterian "creative destruction" and its variants; the notion of complementarity between technical change and institutional restructuring; different classifications of the innovation process; the ideas of technological paradigms and trajectories; the role of user-producer relations. ISDN is assessed in view of the broader transformations that have revolutionised the telecommunications industry during the 1980s. The innovative record of "technical trends" and socio-technical "concepts" examined by the thesis supports the case for technological pluralism. Their presence opens a variety of implementation alternatives for policy makers and defies the technological determinism strongly present in the original versions of the ISDN concept. Moreover, the spectrum of liberalisation regulatory options analysed, creates radically different conditions for the realisation of ISDN from the monopoly environment it was conceived in. As a result, ISDN is forced to change, adapting to a competitive, "open network" environment. The thesis examines the specific experiences of ISDN implementation in the United States, Japan and the European Community (France, Germany and the U.K., plus policies promoted by the European Commission) for its early diffusion period (up to 1990). It is demonstrated that ISDN has been pushed by telecommunications suppliers as part of both their longer-term strategic plans as well as their shorter-term tactical moves. Yet supply push, including international standardisation efforts, has been unable to offer success alone. A weak user participation, later realised by some providers; a slow and complex adaptation of ISDN to the new regulatory realities; difficulties to identify "winning" commercial applications for the right markets. These are the most important problem factors in ISDN's smooth commercialisation, although with varying impact in different national environments.
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Doble, James Carleton University Dissertation Engineering Electrical. "Distribution of protocol functions in an interworking-based ISDN switching node implementation." Ottawa, 1988.
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Fornaro, Antony. "Testbed evaluation of integrating ethernet switches in the differentiated services architecture using virtual LANs." Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/15684.
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Manzano, Ronaldo Sérgio Novaes. "Monitoramento e diagnóstico de falhas em uma coluna de destilação." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264125.
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Orientador: Eurípedes Guilherme de Oliveira NóbregaDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica
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Resumo: O objetivo deste trabalho é criar uma metodologia que monitore e detecte em tempo real as falhas, seja de processo seja de instrumentos, em uma coluna de destilação. Para tanto, foi utilizado um sistema de inferência nebulosa com um sistema de análise de confiabilidade de instrumentos a partir dos diagnósticos disponibilizados na rede industrial Fieldbus Foundation®. O resultado é uma simples, prática e ao mesmo tempo poderosa ferramenta que permite aos operadores analisarem e identificarem falhas e todas as suas causas prováveis, permitindo-lhes assim tomar ações preventivas e/ou corretivas mais rapidamente e com maior assertividade. Essa metodologia foi desenvolvida em VBA Excel® com interface amigável e gráfica. Para cada falha detectada é detalhada sua causa raiz (pode ser mais de uma), ação a ser tomada e é dada uma indicação percentual de intensidade de falha, facilitando a priorização das ações de manutenção
Abstract: The objective is to create a methodology for to monitor and to detect faults in real time, as for process as for instruments in a distillation column. For this, we used a fuzzy inference system with another instruments reliability analysis system from the diagnostics available in the Fieldbus Foundation® industrial network. The result is a simple, practical and yet powerful tool that allows the operators to analyze and to identify faults and their possible causes, thus allowing them to take preventive and / or corrective actions more quickly and with greater assertiveness. This methodology was developed in Excel® VBA with friendly interface and graphics. For each fault detected is detailed their root-cause (may be more than one is possible), the actions to take and so, it's given a percentage indication of failure intensity, facilitating the prioritization for maintenance's actions
Mestrado
Mecanica dos Sólidos e Projeto Mecanico
Mestre em Engenharia Mecânica
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Roberts, James N. "Etudes des performances de reseaux de telecommunications numeriques integrant des services a haut debit." Paris 6, 1987. http://www.theses.fr/1987PA066604.
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Cette these etudie l'impact sur le plan du trafic de la fourniture des services a nx64 kbps par le rnis suivant trois aspects: caracterisation des teleservices, choix approprie de services support et problemes de teletrafic
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Marques, Marcelo de Oliveira. "Dimensionamento de enlace sem fio com integração de voz e de dados." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261774.
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Orientador: Ivanil Sebastião BonattiDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Eletrica
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Resumo: O dimensionamento de enlace sem fio das redes de telecomunicação com integração de voz e de dados é abordado nesse trabalho. Foram desenvolvidos procedimentos de análise e síntese para os dois modelos de filas considerados: modelos markovianos; e modelos com prioridade, sem e com preempção. Esquemas com ou sem compartilhamento de recursos e com buffer finito e infinito foram considerados. Comparações numéricas foram feitas para os modelos utilizados, bem como, os resultados obtidos no dimensionamento do enlace foram submetidos a condições de sobrecarga do tráfego de voz e de dados de forma a analisar o comportamento dos parâmetros de qualidade de serviço especificados
Abstract: The dimensioning of telecommunications network wireless link, with voice and data integration, is presented in this paper. Analysis and synthesis procedures were developed considering Markovian and priority models (with or without preemption). Schemes with or without resources sharing and finite and infinite buffer were considered. The selected models were numerically compared and the results of the dimensioning were submitted to simulations of traffic overload conditions in order to analyze the quality of service parameters behavior
Mestrado
Telecomunicações e Telemática
Mestre em Engenharia Elétrica
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Silveira, Loreno Menezes da 1952. "Conceito e dimensionamento de recursos de voz e sinalização em redes de nova geração." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259657.
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Orientador: Michel Daoud YacoubDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação
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Resumo: Esta dissertação apresenta uma visão da evolução das redes de telecomunicações objetivando o atendimento dos parâmetros da Qualidade de Serviço de redes IP aos requisitos de qualidade de voz das redes telefônicas de circuitos comutados. Gera também uma série de resultados úteis para planejar a introdução de novas tecnologias e de Redes de Nova Geração (NGN) para serviços de voz. Entre os resultados, introduz uma metodologia de planejamento de rede com base na experiência do autor na área. A aplicação desta metodologia é descrita em um caso de estudo sobre a introdução do serviço de voz através de uma rede IP existente. Analisa parâmetros de qualidade de serviço, requisitos de qualidade de voz e, finalmente, calcula a taxa de transferência de fluxo de dados adicional devido ao tráfego de voz. Os cálculos são baseados em um modelo de dimensionamento implementado em uma planilha do Excel. Apesar de não mostrado neste trabalho, os resultados provaram sua efetividade e consistência com a implantação de uma prestadora específica e com o comportamento subsequente da rede em cidades relevantes, como São Paulo, Rio de Janeiro e Belo Horizontes. A dissertação também apresenta modelos de dimensionamento para o tráfego de sinalização: Sistema de Sinalização Nº 7 (ISUP - Rede Digital de Serviços Integrados e BICC - Portador de Controle de chamada Independent) para uso em redes TDM (Time Division Multiplex), ATM (Asynchronous Transfer Mode) ou NGN, explorando estes modelos de aplicação para o protocolo H.248 com possível extensão a SIP, ambos usados no contexto NGN
Abstract: This dissertation provides an overview of telecommunication networks evolution in the light of compliance of IP networks Quality of Service¿s parameters with Public Switched Telephone Networks (PSTN) voice quality requirements. It also delivers a number of new results useful for planning and designing the introduction of new technologies as well as Next Generation Networks (NGN), to provide voice services. Among the results, it introduces a network planning methodology based on the author's experience in this area. The application of such methodology is depicted in a study case concerning the introduction of the voice service over an existing IP network. It analyzes Quality of Service parameters, voice quality requirements and, finally, it calculates the additional data flow throughput due to the voice traffic. The calculations are based on a dimensioning model implemented in an excel spreadsheet. Although not being shown here, the results have been proved effective and consistent with a specific carrier deployment and subsequent network behavior in relevant cities like São, Paulo, Rio de Janeiro and Belo Horizonte. This work also presents a dimensioning model for signaling traffic: Signalling System Nº 7 (ISUP ¿ Integrated Services Digital Networks and BICC - Bearer Independent Call Control) for use in TDM (Time Division Multiplex), ATM (Asynchronous Transfer Mode) or NGN networks. Furthermore, it exploits the application of the dimensioning model to H.248 protocol, suggesting how to extend it to SIP, both used in the NGN context
Mestrado
Telecomunicações e Telemática
Mestre em Engenharia Elétrica
32
YU, SHOU-JIANG, and 于壽江. "Call admittance control in a broadband integrated service digital network." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/02929802762994159821.
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"An integrated broadband concentration/distribution network for multimedia application compatible with the Hybrid Fiber-Coax (HFC) architecture." Chinese University of Hong Kong, 1995. http://library.cuhk.edu.hk/record=b5888471.
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by Ringo Wing-kwan Lam.Thesis (M.Phil.)--Chinese University of Hong Kong, 1995.
Includes bibliographical references (leaves 83-[88] ).
Chapter 1 --- Introduction --- p.1
Chapter 1.1 --- Multimedia Network Requirement --- p.2
Chapter 1.2 --- 100-Mbps Network Proposal --- p.2
Chapter 1.3 --- Broadband Network on HFC Architecture --- p.4
Chapter 1.4 --- The BEBP MAC Protocol --- p.5
Chapter 1.5 --- Scope of the Thesis --- p.5
Chapter 2 --- The MAC Protocol --- p.7
Chapter 2.1 --- Fast Polling Protocol --- p.9
Chapter 2.1.1 --- Round Robin Polling --- p.10
Chapter 2.1.2 --- Binary Exponential Backoff Polling --- p.11
Chapter 2.2 --- Protocol Design --- p.13
Chapter 2.2.1 --- Lessons learnt from IEEE 802 LAN and Ethernet --- p.15
Chapter 2.2.2 --- Protocol Data Unit --- p.17
Chapter 3 --- Performance Analysis --- p.19
Chapter 3.1 --- The Simulation --- p.19
Chapter 3.2 --- Round Robin vs. BEBP --- p.24
Chapter 3.3 --- Size of BEBP Network --- p.30
Chapter 3.4 --- BEBP with Different Tx FIFO Size --- p.31
Chapter 3.5 --- Limitation of the Host Bus Transfer Rate --- p.32
Chapter 3.6 --- Performance with Different Packet Size --- p.36
Chapter 4 --- Network Architecture --- p.40
Chapter 4.1 --- Dual Bus Network Architecture --- p.40
Chapter 4.2 --- Star Network Architecture --- p.41
Chapter 4.3 --- Compatibility with Existing Networks --- p.42
Chapter 4.3.1 --- Compatibility with 10BaseT UTP Star Network --- p.42
Chapter 4.3.2 --- Compatibility with 10Base2 Coax Bus Network --- p.44
Chapter 4.3.3 --- Compatibility with the HFC Coax Tree Network --- p.47
Chapter 5 --- Implementation --- p.50
Chapter 5.1 --- Physical Layer --- p.50
Chapter 5.2 --- MAC Layer --- p.52
Chapter 5.2.1 --- Continuous Mode Datalink --- p.53
Chapter 5.2.2 --- Burst Mode Datalink --- p.53
Chapter 5.2.3 --- The 9-bit Polling Commands --- p.54
Chapter 5.3 --- Design of the NIC --- p.56
Chapter 5.3.1 --- Transmitter Modules --- p.59
Chapter 5.3.2 --- Receiver Module --- p.61
Chapter 5.3.3 --- Serial Interface --- p.63
Chapter 5.4 --- Design of the Hub/Router --- p.67
Chapter 5.4.1 --- CUMLAUDE NET --- p.67
Chapter 5.4.2 --- Hub/Router --- p.69
Chapter 5.4.3 --- Concentrator --- p.72
Chapter 5.5 --- Software - Device Driver --- p.73
Chapter 5.6 --- Testing of NIC --- p.76
Chapter 5.6.1 --- Packet Error Rate Testing --- p.77
Chapter 5.6.2 --- UDP Transfer Rate Testing --- p.78
Chapter 5.6.3 --- Other Applications --- p.79
Chapter 6 --- Conclusion --- p.81
Bibliography --- p.83
Chapter A --- Abbreviation --- p.89
Chapter B --- Simulation Source Code --- p.93
Chapter C --- Simulation Results --- p.98
Chapter D --- Circuit Diagram --- p.122
Chapter D.l --- Network Interface Card --- p.123
Chapter D.2 --- Router/Hub - Ring A Module --- p.123
Chapter D.3 --- Router/Hub - Ring B Module --- p.123
Chapter D.4 --- Router/Hub - Hub Module --- p.123
Chapter D.5 --- Router/Hub - Power Module --- p.123
Chapter D.6 --- Concentrator - Back Plate --- p.123
Chapter D.7 --- Concentrator - Hub Connecting Module --- p.123
Chapter D.8 --- Concentrator - Node Connecting Module --- p.123
Chapter E --- PLD Source Code --- p.132
Chapter E.1 --- GAL20V8 for NIC --- p.132
Chapter E.2 --- Lattise ispLSI for NIC --- p.132
Chapter E.3 --- GAL20V8 for Concentrator --- p.132
Chapter F --- DSP Program --- p.140
Chapter G --- Device Driver --- p.144
Chapter G.1 --- The Network Driver : nic.c --- p.144
Chapter G.2 --- The Header File : nic.h --- p.144
Chapter H --- Testing Program --- p.151
Chapter H.1 --- Packet Error Rate Testing Program --- p.151
Chapter H.2 --- UDP Rate Testing Program --- p.151
Chapter H.2.1 --- Datagram Client : dgcli.c --- p.151
Chapter H.2.2 --- Datagram Server : dgecho.c --- p.151
Chapter H.2.3 --- UDP Client : udpcli.c --- p.151
Chapter H.2.4 --- UDP Server : udpserv.c --- p.151
Chapter H.2.5 --- The Header File : inet.h --- p.151
34
"Adaptation of variable-bit-rate compressed video for transport over a constant-bit-rate communication channel in broadband networks." Chinese University of Hong Kong, 1995. http://library.cuhk.edu.hk/record=b5888495.
Full textAbstract:
by Chi-yin Tse.Thesis (M.Phil.)--Chinese University of Hong Kong, 1995.
Includes bibliographical references (leaves 118-[121]).
Chapter 1 --- Introduction --- p.1
Chapter 1.1 --- Video Compression and Transport --- p.2
Chapter 1.2 --- VBR-CBR Adaptation of Video Traffic --- p.5
Chapter 1.3 --- Research Contributions --- p.7
Chapter 1.3.1 --- Spatial Smoothing: Video Aggregation --- p.8
Chapter 1.3.2 --- Temporal Smoothing: A Control-Theoretic Study。 --- p.8
Chapter 1.4 --- Organization of Thesis --- p.9
Chapter 2 --- Preliminaries --- p.13
Chapter 2.1 --- MPEG Compression Scheme --- p.13
Chapter 2.2 --- Problems of Transmitting MPEG Video --- p.17
Chapter 2.3 --- Two-layer Coding and Transport Strategy --- p.19
Chapter 2.3.1 --- Framework of MPEG-based Layering --- p.19
Chapter 2.3.2 --- Transmission of GS and ES --- p.20
Chapter 2.3.3 --- Problems of Two-layer Video Transmission --- p.20
Chapter 3 --- Video Aggregation --- p.24
Chapter 3.1 --- Motivation and Basic Concept of Video Aggregation --- p.25
Chapter 3.1.1 --- Description of Video Aggregation --- p.28
Chapter 3.2 --- MPEG Video Aggregation System --- p.29
Chapter 3.2.1 --- Shortcomings of the MPEG Video Bundle Scenario with Two-Layer Coding and Cell-Level Multiplexing --- p.29
Chapter 3.2.2 --- MPEG Video Aggregation --- p.31
Chapter 3.2.3 --- MPEG Video Aggregation System Architecture --- p.33
Chapter 3.3 --- Variations of MPEG Video Aggregation System --- p.35
Chapter 3.4 --- Experimental Results --- p.38
Chapter 3.4.1 --- Comparison of Video Aggregation and Cell-level Multi- plexing --- p.40
Chapter 3.4.2 --- Varying Amount of the Allocated Bandwidth --- p.48
Chapter 3.4.3 --- Varying Number of Sequences --- p.50
Chapter 3.5 --- Conclusion --- p.53
Chapter 3.6 --- Appendix: Alternative Implementation of MPEG Video Aggre- gation --- p.53
Chapter 3.6.1 --- Profile Approach --- p.54
Chapter 3.6.2 --- Bit-Plane Approach --- p.54
Chapter 4 --- A Control-Theoretic Study of Video Traffic Adaptation --- p.58
Chapter 4.1 --- Review of Previous Adaptation Schemes --- p.60
Chapter 4.1.1 --- A Generic Model for Adaptation Scheme --- p.60
Chapter 4.1.2 --- Objectives of Adaptation Controller --- p.61
Chapter 4.2 --- Motivation for Control-Theoretic Study --- p.64
Chapter 4.3 --- Linear Feedback Controller Model --- p.64
Chapter 4.3.1 --- Encoder Model --- p.65
Chapter 4.3.2 --- Adaptation Controller Model --- p.69
Chapter 4.4 --- Analysis --- p.72
Chapter 4.4.1 --- Stability --- p.73
Chapter 4.4.2 --- Robustness against Coding-mode Switching --- p.83
Chapter 4.4.3 --- Unit-Step Responses and Unit-Sample Responses --- p.84
Chapter 4.5 --- Implementation --- p.91
Chapter 4.6 --- Experimental Results --- p.95
Chapter 4.6.1 --- Overall Performance of the Adaptation Scheme --- p.97
Chapter 4.6.2 --- Weak-Control verus Strong-Control --- p.99
Chapter 4.6.3 --- Varying Amount of Reserved Bandwidth --- p.101
Chapter 4.7 --- Conclusion --- p.103
Chapter 4.8 --- Appendix I: Further Research --- p.103
Chapter 4.9 --- Appendix II: Review of Previous Adaptation Schemes --- p.106
Chapter 4.9.1 --- Watanabe. et. al.'s Scheme --- p.106
Chapter 4.9.2 --- MPEG's Scheme --- p.107
Chapter 4.9.3 --- Lee et.al.'s Modification --- p.109
Chapter 4.9.4 --- Chen's Adaptation Scheme --- p.110
Chapter 5 --- Conclusion --- p.116
Bibliography --- p.118
35
"Pipeline Banyan: design, analysis and VLSI implementation." Chinese University of Hong Kong, 1994. http://library.cuhk.edu.hk/record=b5895458.
Full textAbstract:
by Yeung Ming Sang.Thesis (Ph.D.)--Chinese University of Hong Kong, 1994.
Includes bibliographical references (leaves 191-[201]).
Chapter 1 --- Introduction --- p.1
Chapter 1.1 --- Background --- p.1
Chapter 1.1.1 --- Broadband Integrated Services Network --- p.1
Chapter 1.1.2 --- ATM Switching Technology --- p.3
Chapter 1.2 --- Broadband ATM Switching ´ؤ A Review --- p.4
Chapter 1.2.1 --- Shared Memory Switches --- p.5
Chapter 1.2.2 --- Shared Medium Switches --- p.5
Chapter 1.2.3 --- Space-division Type Switches --- p.6
Chapter 1.3 --- Motivation and Contributions --- p.13
Chapter 1.4 --- Overview of the Thesis --- p.13
Chapter 2 --- Pipeline Banyan Switch Architecture --- p.15
Chapter 2.1 --- Switch Architecture --- p.15
Chapter 2.2 --- Switch Operation --- p.17
Chapter 2.3 --- Switch Design --- p.19
Chapter 2.4 --- "Priority, Broadcasting and Multicasting Mechanisms" --- p.21
Chapter 2.5 --- Switch Speed Reduction at the Control Plane --- p.23
Chapter 3 --- Performance Evaluation of Pipeline Banyan --- p.27
Chapter 3.1 --- Performance under Uniform and Independent Traffic Pattern --- p.27
Chapter 3.1.1 --- Analysis of Packet Loss Performance --- p.27
Chapter 3.1.2 --- Throughput Performance --- p.32
Chapter 3.1.3 --- Delay Performance --- p.36
Chapter 3.1.4 --- Comparison of Loss Performance of Banyan-type Networks --- p.37
Chapter 3.1.5 --- Output Queueing Capability --- p.41
Chapter 3.2 --- Performance of the Switch under Special Traffic Pattern --- p.45
Chapter 3.2.1 --- Performance under Bursty Traffic --- p.45
Chapter 3.2.2 --- Performance under Hot Spot Traffic --- p.48
Chapter 3.2.3 --- Performance under Point-to-Point Traffic --- p.51
Chapter 3.2.4 --- Performance under Permutation Traffic --- p.52
Chapter 3.3 --- Switch Complexity Discussion --- p.54
Chapter 4 --- Multi-Channel Pipeline Banyan (MCPB) --- p.57
Chapter 4.1 --- Background --- p.57
Chapter 4.2 --- Switch Architecture --- p.59
Chapter 4.3 --- Performance Evaluation --- p.64
Chapter 4.3.1 --- Packet loss probability --- p.64
Chapter 4.3.2 --- Throughput performance --- p.69
Chapter 4.3.3 --- Delay performance --- p.69
Chapter 4.4 --- Application of MCPB --- p.71
Chapter 4.4.1 --- ATM Cross-connect --- p.71
Chapter 4.4.2 --- Switch Interconnection Fabric --- p.71
Chapter 5 --- VLSI Implementation --- p.75
Chapter 5.1 --- Outline of a typical ATM switching system --- p.75
Chapter 5.1.1 --- Line Interface Module --- p.75
Chapter 5.1.2 --- System Manager Module --- p.77
Chapter 5.1.3 --- Switch Module --- p.78
Chapter 5.2 --- "VLSI Design Technology, Procedures and Tools" --- p.78
Chapter 5.2.1 --- Design Technology --- p.78
Chapter 5.2.2 --- Procedures and Tools --- p.79
Chapter 5.3 --- Logic Design of ATM Switch Module --- p.80
Chapter 5.3.1 --- Switching Element in Control Plane --- p.80
Chapter 5.3.2 --- Switching Element in Data Plane --- p.86
Chapter 5.3.3 --- Clock Generator for Synchronization --- p.93
Chapter 5.3.4 --- Schematic of Control Plane --- p.98
Chapter 5.3.5 --- Schematic of Data Plane --- p.98
Chapter 5.3.6 --- Timing Diagrams --- p.98
Chapter 5.4 --- Chip Summary --- p.107
Chapter 5.5 --- Experiences --- p.109
Chapter 5.5.1 --- Core Size Limitation --- p.109
Chapter 5.5.2 --- Pin Count Limitation --- p.110
Chapter 5.5.3 --- Speed Limitation --- p.111
Chapter 5.5.4 --- Other Design Considerations --- p.111
Chapter 5.6 --- Discussions --- p.112
Chapter 6 --- Dynamic Priority Schemes for Fast Packet Switches --- p.114
Chapter 6.1 --- Motivation --- p.114
Chapter 6.2 --- Switch Architecture --- p.118
Chapter 6.3 --- QCPD: Queueing Controlled Priority Discipline --- p.121
Chapter 6.3.1 --- Algorithm QCPD --- p.121
Chapter 6.4 --- BCPD: Blocking Controlled Priority Discipline --- p.122
Chapter 6.4.1 --- Algorithm BCPD_FT --- p.122
Chapter 6.4.2 --- Delay Guarantee by Algorithm BCPD_FT --- p.123
Chapter 6.4.3 --- Algorithm BCPD_DT --- p.126
Chapter 6.4.4 --- Delay Guarantee by Algorithm BCPD_DT --- p.128
Chapter 6.5 --- HCPD: Hybrid Controlled Priority Discipline --- p.134
Chapter 6.5.1 --- Algorithms HCPD_FT and HCPD_DT --- p.135
Chapter 6.6 --- Performance Studies --- p.136
Chapter 6.6.1 --- Performance Comparison of the Priority Schemes --- p.136
Chapter 6.6.2 --- Cell Loss Performance of HCPD_DT --- p.140
Chapter 6.6.3 --- Input Queue Distribution of HCPD_DT --- p.142
Chapter 6.6.4 --- Delay Bound of HCPD_DT --- p.144
Chapter 6.6.5 --- Performance of HCPD_DT under Priority Traffic --- p.148
Chapter 6.7 --- The use of HCPD_DT in Pipeline Banyan --- p.152
Chapter 6.8 --- Conclusion --- p.153
Chapter 7 --- Summary and Future Work --- p.155
Chapter 7.1 --- Summary --- p.155
Chapter 7.2 --- Future Work --- p.156
Chapter A --- Verilog HDL descriptions of 16x16 Pipeline Banyan --- p.158
Chapter B --- User's Guide of 16x16 Pipeline Banyan Chip Set --- p.182
Chapter B.l --- Specification --- p.182
Chapter B.2 --- Control Plane Chip and Data Plane Chip Pinout --- p.183
Chapter B.2.1 --- Control Plane Chip Pinout --- p.183
Chapter B.2.2 --- Data Plane Chip Pinout --- p.183
Chapter B.3 --- Signal Descriptions --- p.186
Chapter B.3.1 --- Signal Descriptions of Control Plane Chip --- p.186
Chapter B.3.2 --- Signal Descriptions of Data Plane Chip --- p.187
Chapter B.4 --- Connection Examples --- p.188
Bibliography --- p.191
36
Sekercioglu, Y. Ahmet. "Fuzzy logic control techniques and structures for Asynchronous Transfer Mode (ATM) based multimedia networks /." 2000. http://adt.lib.swin.edu.au/public/adt-VSWT20050411.130014.
Full textAbstract:
Thesis (Ph.D.) - Swinburne University of Technology, School of Biophysical Sciences and Electrical Engineering, 2000.Submitted for the degree of Doctor of Philosophy, School of Biophysical Science & Electrical Engineering, 2000. Typescript. Includes bibliographical references (p. 133-145).
37
"Distributed call set-up algorithms in BISDN environment." Chinese University of Hong Kong, 1992. http://library.cuhk.edu.hk/record=b5887753.
Full textAbstract:
by Shum Kam Hong.Thesis (M.Phil.)--Chinese University of Hong Kong, 1992.
Includes bibliographical references (leaves 125-131).
Chapter 1 --- Introduction --- p.1
Chapter 1.1 --- Background --- p.1
Chapter 1.2 --- Outline of the thesis --- p.6
Chapter 1.3 --- Current Art in Packet Switching --- p.9
Chapter 2 --- Management of Control Information --- p.17
Chapter 2.1 --- Inter-node Exchange of Link Congestion Status --- p.21
Chapter 2.2 --- Consistency of Control Information --- p.24
Chapter 2.3 --- Alternate Format of Control Information --- p.26
Chapter 3 --- Traffic Flow Control --- p.29
Chapter 3.1 --- Control of Traffic Influx into the Network --- p.29
Chapter 3.2 --- Control of Traffic Loading from the Node --- p.30
Chapter 3.3 --- Flow Control for Connection Oriented Traffic --- p.32
Chapter 3.4 --- Judgement of Link Status --- p.38
Chapter 3.5 --- Starvation-free and Deadlock-free --- p.42
Chapter 4 --- Call Set-up Algorithm Traffic Modelling --- p.47
Chapter 4.1 --- Basic Algorithm --- p.47
Chapter 4.2 --- Minimization of Bandwidth Overhead --- p.48
Chapter 4.3 --- Two-way Transmission --- p.51
Chapter 4.4 --- Traffic Modelling --- p.52
Chapter 4.4.1 --- Aggregate Traffic Models --- p.53
Chapter 4.4.2 --- Traffic Burstiness --- p.57
Chapter 5 --- Parameters Tuning and Analysis --- p.76
Chapter 5.1 --- Scheme I : Scout Pumping --- p.76
Chapter 5.2 --- Scheme II : Speed-up Scout Pumping --- p.85
Chapter 5.3 --- Blocking Probability --- p.90
Chapter 5.4 --- Scout Stream Collision --- p.92
Chapter 6 --- Simulation Modelling & Performance Evaluation --- p.96
Chapter 6.1 --- The Network Simulator --- p.96
Chapter 6.1.1 --- Simulation Event Scheduling --- p.97
Chapter 6.1.2 --- Input Traffic Regulation --- p.100
Chapter 6.1.3 --- Actual Offered Load --- p.101
Chapter 6.1.4 --- Static and Dynamic Parameters --- p.103
Chapter 6.2 --- Simulation Results --- p.107
Chapter 7 --- Conclusions --- p.123
Chapter A --- List of Symbols --- p.132
38
"Non-blocking and distributed routing principles in ATM packet switching networks." 1997. http://library.cuhk.edu.hk/record=b6073066.
Full textAbstract:
by Philip Pak-tung To.Thesis (Ph.D.)--Chinese University of Hong Kong, 1997.
Includes bibliographical references (p. 126).
Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.
Mode of access: World Wide Web.
39
"A self-routing non-buffering ATM switch." Chinese University of Hong Kong, 1996. http://library.cuhk.edu.hk/record=b5895704.
Full textAbstract:
by Timothy Kai-Cheung Chung.Thesis (M.Phil.)--Chinese University of Hong Kong, 1996.
Includes bibliographical references.
Chapter 1. --- INTRODUCTION --- p.1
Chapter 2. --- ASYNCHRONOUS TRANSFER MODE SWITCHING --- p.4
Chapter 2.1 --- Transfer Modes --- p.4
Chapter 2.1.1 --- Circuit Switching --- p.4
Chapter 2.1.2 --- ATM Switching --- p.6
Chapter 2.1.3 --- Packet Switching --- p.8
Chapter 2.2 --- Different Types of ATM Switching System --- p.8
Chapter 2.2.1 --- Central Control Type --- p.9
Chapter 2.2.2 --- Self-Routing Type --- p.9
Chapter 2.3 --- Self-Routing Non-Buffering ATM Switching Node --- p.10
Chapter 3. --- FUNCTIONAL DESCRIPTION OF MODULE ´بA´ة --- p.16
Chapter 3.1 --- ATM Cell Format --- p.17
Chapter 3.2 --- Concentrator --- p.17
Chapter 3.3 --- Routing Cell --- p.19
Chapter 4. --- PHYSICAL STRUCTURE OF MODULE ´بA´ة --- p.23
Chapter 4.1 --- Clocking Scheme --- p.23
Chapter 4.2 --- Concentrator --- p.25
Chapter 4.2.1 --- 2-by-2 Sorter --- p.25
Chapter 4.2.2 --- Input Framer --- p.30
Chapter 4.2.3 --- Data Buffer --- p.38
Chapter 4.3 --- Routing Cell --- p.38
Chapter 4.3.1 --- Type I Router --- p.39
Chapter 4.3.2 --- Type II Router --- p.42
Chapter 4.4 --- Block By-Passed Function --- p.43
Chapter 5. --- SIMULATION AND TEST --- p.48
Chapter 5.1 --- Computer Simulation --- p.48
Chapter 5.2 --- Actual Chip Testing --- p.53
Chapter 5.3 --- Measurement Results --- p.55
Chapter 5.3.1 --- Functionality --- p.55
Chapter 5.3.2 --- Maximum Clock Frequency --- p.60
Chapter 5.3.3 --- Power Dissipation --- p.61
Chapter 6. --- CONCLUSION --- p.63
Chapter A. --- BRIEF HISTORY OF ATM SWITCH ARCHITECTURE DEVELOPMENT --- p.65
Chapter B. --- BIBLIOGRAPHY --- p.66
Chapter C. --- A N-WELL CMOS PROCESS --- p.70
Chapter D. --- CADENCE DESIGN FLOW --- p.73
Chapter E. --- YERILOG SIMULATION PROGRAMS --- p.77
Chapter F. --- SCHEMATIC DIAGRAMS --- p.100
40
Weidert, Margaretmary Torelli. "Integrated Services Digital Network (ISDN)." Thesis, 1985. http://hdl.handle.net/10945/21388.
Full text
41
Chen, Shing-Yu, and 陳星宇. "A Novel OFDMA Hybrid Access Network Architecture for Future Integrated Broadband and Wireless Services." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/10304407851519226480.
Full textAbstract:
碩士國立交通大學
顯示科技研究所
97
Today, a variety of new network services make users’ demands for bandwidth grow dramatically. The DSL technology based on copper cannot provide enough bandwidth. Optical network is the solution, because fiber can provide very high bandwidth. The mobility of wireless service is another primary demand. Thus, our goal is to integrate wireline and wireless service to build a cost-effective system. The OFDMA PON is this new system which has high spectral efficiency and it can integrate wireline and wireless service. But the OFDMA system which has been proposed so far needs to be operated with the WDM laser. The process not only increases the cost of system and but also leads to the OBI problem. So, we propose a novel architecture of OFDMA PON which can go without WDM laser. It is cost-effective and bandwidth-effective. In addition, we propose three methods to improve the interference between broadband signal as well as wireless signal. And I will analyze these three methods in details below. And we carry out a series of experiments to demonstrate the feasibility of the system.
42
"Design, analysis and implementation of integrated services networks." Chinese University of Hong Kong, 1993. http://library.cuhk.edu.hk/record=b5888251.
Full textAbstract:
by Wong, Chan-foon.Thesis (M.Phil.)--Chinese University of Hong Kong, 1993.
Includes bibliographical references (leaves 59-67 (1st gp.)).
Chapter Chapter I --- Introduction --- p.1
Chapter 1.1 --- Background --- p.1
Chapter 1.2 --- Traffic Characteristics --- p.2
Chapter 1.3 --- Related Works --- p.5
Chapter Chapter II --- Integrated Services Protocol (ISP) --- p.7
Chapter 2.1 --- Ethernet --- p.7
Chapter 2.2 --- ISP Description --- p.9
Chapter 2.2.1 --- Voice Communications Characteristics --- p.9
Chapter 2.2.2 --- Voice Packet Format --- p.12
Chapter 2.2.3 --- Call Management --- p.13
Chapter 2.4.4 --- Voice Packet Transmission Protocol --- p.14
Chapter 2.4.5 --- Error Handling --- p.16
Chapter Chapter III --- Protocol Studies --- p.17
Chapter 3.1 --- Simulation Model And Parameters --- p.17
Chapter 3.2 --- Voice Loss --- p.18
Chapter 3.3 --- Data Delay --- p.20
Chapter 3.4 --- Maximum Number Of Active Voice Stations --- p.22
Chapter 3.5 --- Summary --- p.23
Chapter Chapter IV --- Implementation --- p.24
Chapter 4.1 --- System Platform --- p.24
Chapter 4.2 --- Integrated Services Adapter (ISA) --- p.25
Chapter 4.2.1 --- Hardware Design --- p.26
Chapter 4.3 --- Voice on Ethernet Adapter (VEA) --- p.29
Chapter 4.3.1 --- Hardware Design --- p.29
Chapter 4.3.2 --- Software Design --- p.31
Chapter 4.3.2.1 --- Programming The VEA --- p.32
Chapter 4.3.2.2 --- Software Development Under DOS --- p.35
Chapter 4.3.2.3 --- Software Development Under Linux --- p.37
Chapter 4.4 --- Summary --- p.41
Chapter Chapter V --- Implementation Results --- p.42
Chapter 5.1 --- Frequency Response --- p.43
Chapter 5.2 --- Distortion --- p.44
Chapter 5.3 --- Amplification and Linearity --- p.45
Chapter 5.4 --- Voice Quality With Different Voice Packet Sizes --- p.46
Chapter 5.5 --- Voice Loss Under Various Data Loadings --- p.47
Chapter Chapter VI --- Implementation Experiences --- p.49
Chapter 6.1 --- CPU Bottle-neck --- p.49
Chapter 6.2 --- Data Bus Bottle-neck --- p.50
Chapter 6.3 --- Operating System --- p.50
Chapter Chapter VII --- Future Works --- p.52
Chapter 7.1 --- Enhancement of ISA --- p.52
Chapter 7.2 --- Extensions To Other Networks --- p.53
Chapter 7.3 --- A New Architecture For Future Multimedia Workstation --- p.54
Chapter Chapter VIII --- Conclusions --- p.57
Bibliography --- p.59
Appendices --- p.A.l
Appendix A: Detailed Circuit Designs --- p.A.2
Appendix B: Detailed Software Designs --- p.A.5
Appendix C: Schematic Diagrams --- p.A.15
Appendix D: Program Listings --- p.A.23
43
"Gateway design for a high speed multimedia integrated network." Chinese University of Hong Kong, 1994. http://library.cuhk.edu.hk/record=b5888614.
Full textAbstract:
by Chung Kong Ngai.Thesis (M.Sc.)--Chinese University of Hong Kong, 1994.
Includes bibliographical references (leaves 84-86).
Chapter 1 --- Introduction --- p.1
Chapter 1.1 --- Introduction to CUM LAUDE NET --- p.1
Chapter 1.2 --- Interconnections with Other Networks --- p.3
Chapter 1.3 --- Introduction to FDDI --- p.4
Chapter 1.4 --- Scope of the Thesis --- p.4
Chapter 2 --- Overview of CUM LAUDE NET --- p.7
Chapter 2.1 --- Network Architecture of CUM LAUDE NET --- p.7
Chapter 2.2 --- Level One Network Architecture --- p.9
Chapter 2.3 --- Level One Router --- p.11
Chapter 2.3.1 --- fault protection --- p.12
Chapter 2.4 --- Host and Network Interface Card --- p.13
Chapter 2.5 --- Protocol used in CUM LAUDE NET --- p.13
Chapter 2.5.1 --- protocol layering --- p.14
Chapter 2.5.2 --- packet format --- p.16
Chapter 2.5.3 --- fast packet routing protocol --- p.17
Chapter 2.5.4 --- ACTA protocol --- p.19
Chapter 2.6 --- Network Services --- p.21
Chapter 3 --- Overview of FDDI --- p.22
Chapter 3.1 --- FDDI Architectural Model --- p.23
Chapter 3.1.1 --- FDDI stations --- p.24
Chapter 3.2 --- FDDI station layering --- p.27
Chapter 3.2.1 --- PMD (Physical Medium Dependent) Layer --- p.28
Chapter 3.2.2 --- PHY (Physical Layer) --- p.28
Chapter 3.2.3 --- MAC (Medium Access Control) Layer --- p.29
Chapter 3.2.4 --- SMT (Station Management) --- p.31
Chapter 3.3 --- FDDI MAC Protocol --- p.32
Chapter 3.3.1 --- capacity allocation --- p.32
Chapter 3.4 --- FDDI Applications --- p.36
Chapter 3.5 --- FDDI II --- p.39
Chapter 4 --- Device driver of the FDDI Adapter --- p.41
Chapter 4.1 --- Characteristics of the FDDI Adapter --- p.42
Chapter 4.2 --- Hardware Overview of the Adapter --- p.42
Chapter 4.3 --- Structure of the Device Driver --- p.43
Chapter 4.3.1 --- fddi_init() entry point --- p.46
Chapter 4.3.2 --- fddi_open() entry point --- p.46
Chapter 4.3.3 --- fddi_hard_header() entry point --- p.46
Chapter 4.3.4 --- fddi_rebuild_header() entry point --- p.49
Chapter 4.3.5 --- fddi_close() entry point --- p.49
Chapter 4.3.6 --- fddi_start_xmit() entry point --- p.50
Chapter 4.3.7 --- interrupt handler fddi_interrupt() --- p.51
Chapter 4.4 --- Operation of the transmit buffer memory ring --- p.52
Chapter 4.5 --- Operation of the receive buffer memory ring --- p.54
Chapter 4.6 --- Communication with the Adapter --- p.57
Chapter 5 --- Design and Implementation of the Gateway --- p.58
Chapter 5.1 --- Detail design of the Gateway --- p.60
Chapter 5.2 --- Protocol Converter for ARP --- p.62
Chapter 5.3 --- Protocol Convertor for IP --- p.68
Chapter 5.3.1 --- forwarding IP frame --- p.70
Chapter 5.3.2 --- fragmentation of IP frame --- p.73
Chapter 5.4 --- Address Routing Table --- p.76
Chapter 5.5 --- Performance results of the Gateway --- p.79
Chapter 5.6 --- Future Development --- p.81
Chapter 6 --- Conclusion --- p.82
Bibliography --- p.84
44
"Pipeline rings and integrated services rings." Chinese University of Hong Kong, 1989. http://library.cuhk.edu.hk/record=b5886199.
Full text
45
"Enhancement of ISDN user-network interface signalling protocol for the inclusion of basic local area network property." Chinese University of Hong Kong, 1993. http://library.cuhk.edu.hk/record=b5887820.
Full textAbstract:
by Cheung Kam Wah.Thesis (M.Phil.)--Chinese University of Hong Kong, 1993.
Includes bibliographical references (leaves 62-63).
Chapter Chapter 1. --- Introduction --- p.1
Chapter Chapter 2. --- ISDN Architecture --- p.4
Chapter 2.1 --- ISDN Definition --- p.4
Chapter 2.2 --- Channel Structure --- p.6
Chapter 2.3 --- Wiring Configuration of ISDN User-Network Interface --- p.6
Chapter 2.4 --- ISDN Signalling Protocol at S/T Interface --- p.7
Chapter Chapter 3. --- ISDN Signalling Protocol Enhancement --- p.8
Chapter 3.1 --- ISDN Basic Rate Access Configuration --- p.8
Chapter 3.2 --- Protocol Enhancement --- p.10
Chapter 3.3 --- ISDN Layer 1 Signalling Protocol Enhancement --- p.11
Chapter 3.4 --- ISDN Layer 2 Signalling Protocol Enhancement --- p.13
Chapter 3.5 --- ISDN Layer 3 Signalling Protocol Enhancement --- p.15
Chapter Chapter 4. --- Basic Call Control Procedure for Special Terminal Equipment --- p.18
Chapter 4.1 --- Signalling Procedure for Call establishment and Termination --- p.18
Chapter 4.2 --- Requirements on the Developed System --- p.27
Chapter Chapter 5. --- Software Simulation --- p.29
Chapter Chapter 6. --- System Performance Analysis --- p.33
Chapter 6.1 --- Simple Measurement on the Execution Time of ISDN Call --- p.33
Chapter 6.2 --- Call Handling Capacity Analysis --- p.36
Chapter 6.3 --- Call Request Delay Analysis --- p.42
Chapter Chapter 7. --- Conclusion --- p.59
References --- p.62
Appendix I: Software Simulation Program Flowchart --- p.64
Appendix II: Software Simulation Program in Borland C++ Language --- p.86
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Luo, Shie-Shuo, and 羅仕樹. "A Study on Service Quality of Information Telecommunication Network Business-- A Case of Integrated Services Digital Network in Basic Rate Access." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/13744226331210060956.
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Lin, Chin-Tsai, and 林進財. "Discussion on Consumption Recognition of High-Tech Communication Products--Taking The Business of Integrated Services Digital Network as an Example." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/51545309289178849104.
Full textAbstract:
碩士國立交通大學
管理科學研究所
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Since the new high-tech communication products produced and the competition trend of market liberalization that market research and analysis on consumption recognition are the effective tool for enterprise getting the niche. This research try to take the business of Integrated Services Digital Network as an example to discuss and analyze whether there is any bvious difference between each independent variable of organizational attribution and such dependent variables as ecognition,need, evaluation and adoption. And pointing to the variables which have obvious relationship, raise more reasonable marketing strategy and facilitate the use of resources to be rationalized to benefit both industries and customers. This research adopts the method of questionnaire, and the research objects are the non-residing users of such seven metropolitan areas as Taipei City, Kaohsiung City, Keelung City, Hsinchu City, Taichung City, Chia-Yi City and Tainan City,whose name are published on the yellow pages of telephone book of 1995, and refersto the ten trades classified from the "The Potentiality of ISDN Network Market andIts promotion Strategy Investigation Report" by The World Economic Society in August 1993, making the random questionnaire and taking two-factor cross analysis as cord examination and times number statistic analysis. The result of research finds that: the more office automation and computerization of an organization, the more recognition to the function of bearer services,teleservices and supplementary services that the recognition is corresponding to the demand and matches the theory of use process; and the boss' age and education are irrelevant to the bearer services,teleservices and s upplementary services of recognition. And enterprise who has branches will need the bearer services and supplementary services. The established years, employee numbers and monthly communication expense are irrelevant to the evaluation variable of each expense. The fitting expense for ISDN is somewhat high, and the local, domestic communication charges are reasonable, as to the International charge is hoped to decline. The decision level for use is exclusively relevant to the demand of image transmitting function, and enterprise who has local or foreign branches most hope the price of the image telephone terminal equipment's is below NT$50,000. The demand of ISDN communicating Hi-net equipment is extremely high which is the hot product most possibly to be accepted by the market. And the analysis on the demand of promotion type, the mailed information is still the most acceptable way. Keywords: consumption recognition, integrated services digital network, high-tech communication products
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Σκάλτσας, Κωνσταντίνος. "Τεχνοοικονομική σύγκριση ασυρματικών και οπτικών δικτύων πρόσβασης." Thesis, 2011. http://hdl.handle.net/10889/5051.
Full textAbstract:
Στην παρούσα διπλωματική εργασία μελετάται έλεγχος της λειτουργίας ενός πλήθους διαφορετικών τεχνολογιών δικτύου, όπως το Ψηφιακό Δίκτυο Ενοποιημένων Υπηρεσιών (Integrated Services Digital Network, ISDN), ο ψηφιακός βρόχος συνδρομητή (Digital Subscriber Loop), οι τεχνολογίες SHDSL,VDSL κ.α. Αφότου έγινε μια εκτενής περιγραφή των περισσότερων τύπων δικτύων και διεξοδική μελέτη των λειτουργιών τους, προσδιορίστηκαν οι τεχνολογίες δικτύου που είναι εφικτό να μελετηθούν στα πλαίσια ενός εργαστηριακού μαθήματος. Για την επίτευξη του στόχου αυτού δη-μιουργήθηκαν μια σειρά εργαστηριακών ασκήσεων που βοηθούν στην κατανόηση τόσο των συγκεκριμένων τεχνολογιών (και των μεταξύ τους διαφορών) όσο και των πολυάριθμων ελέγχων που είναι δυνατό να διεξαχθούν για την παρακολούθηση και συντήρηση των συγκεκριμένων δικτύων. Εν κατακλείδι η εργασία αποτελεί ένα χρήσιμο εργαλείο για τη μελέτη των πιο σημαντικών τεχνολογιών δικτύου.This diploma thesis examines the monitoring of the functions, of many network technologies such as the Integrated Services Digital Network (ISDN), the Digital Subscriber Loop (DSL), the SHDSL, VDSL technologies and more. After an extensive reference of the most network types and a comprehensive study of their functions, it has been determined which of those is possible to be examined as a part of lab course. In order for this goal to be achieved, it has been created a set of laboratory exercises that help in the understanding of these network technologies, the differences between them and the multiple tests that can be conducted for the monitoring and maintenance of those networks. In conclusion this diploma thesis is useful tool in the study of the most important network technologies.