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Wang, Lei. "Bandwidth contracting in B-ISDN." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ32801.pdf.
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Lafrenière, Luc. "Parameter negotiation in a B-ISDN environment." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq22771.pdf.
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Fróes, Lima Carlos Alberto 1963. "Analise de OAM para equipamentos da B-ISDN." [s.n.], 1995. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259774.
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Orientador: Rege Romeu ScarabucciDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica
Made available in DSpace on 2018-07-20T15:35:53Z (GMT). No. of bitstreams: 1 FroesLima_CarlosAlberto_M.pdf: 13128038 bytes, checksum: 9a027b022f46f119b85d45abd0009efa (MD5) Previous issue date: 1995
Resumo: A evolução das redes digitais e de uma nova tecnologia de comutação e multiplexação em altas taxas - ATM(Asynchronous Transfer Mode) ¿ garantiu uma forma flexível para a interligaçãoem rede. Da padronização do ITU-T e de diversos foros de fabricantes, aliando a indústria da informática com a indústria de telecomunicações pretende-se uma universalidade no processo de transferência de informações nas próximas décadas. Dentro desta característica de técnica integradora da tecnologia ATM, os equipamentos projetados deverão considerar, além do transporte propriamente da informação, a sua integração do ponto de vista de gerenciamento. Neste sentido, mecanismos de Operação, Administração, Manutenção e Provisionamento deverão estar contidos e padronizados nestes equipamentos. Este trabalho analisa as necessidades básicas de um equipamento que possa ser inserido na futura rede faixa larga de serviços integrados do ponto de vista de concepção de gerenciamento. Como exemplo da estrutura apresentada é também proposto um modelo para a Camada de protocolo ATMque contempla e exemplifica as funcionalidades requeridas em operação e gerenciamento de rede. Utilizando a linguagem formal de descrição e especificação SDL (Specification and Description Language) e diagramas de fluxo de mensagens MSC (Message Sequence Chart) a consistência deste modelo é verificada
Mestrado
Eletrônica, Microeletrônica e Optoeletrônica
Mestre em Engenharia Elétrica
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Manan, Jamalul-lail Abdul. "Performance evaluation of an FDDI-ATM gateway capable of supporting multi-class traffic." Thesis, University of Strathclyde, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322109.
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Yu, Oliver T. W. "Integrated congestion management at the user-network interface of an ATM/B-ISDN network." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30126.
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This thesis presents an integrated congestion management platform of user traffic at the UNI of the ATM-based network considering the presence of signalling traffic. Integrated congestion management dictates that congestion control schemes are applied during the call access phase (call admission control scheme) and the information transfer phase (buffer control scheme) of user traffic source. The congestion control schemes are devised to meet the congestion performance requirements and to optimize the performance if possible.
UNI call admission and buffer controls developed for the conventional packet-switched network are not applicable to the ATM-based network because of the different input traffic characteristics. In most of the past investigations on the performance of conventional packet-switched networks, the individual input traffic is mostly computer-to-computer data; such individual and aggregate traffic are well-known to follow the Poisson process. On the other hand, ATM-based networks allow a variety of input traffic in addition to the Poisson-distributed traffic. In this thesis, individual user traffic process is modelled as a two-state Markov modulated Poisson process; the aggregate user traffic process is modeled as a batch Bernoulli renewal process under short-term condition and as a fluid process under long-term heavy traffic condition.
The signalling traffic at the UNI carries call control messages and network management
messages originated from the user nodes. The signalling traffic must be serviced quickly since they directly affect call establishment and network efficiency. Up to now, all related congestion control researches only consider user traffic. Consequently, the primary objective for this thesis is to study the effect of the higher-priority signalling
traffic on the multiplexing of user traffic at the UNI. A novel modeling of user traffic multiplexing through the ATM statistical multiplexer at the UNI is proposed: it is characterized
by a queueing model with random service disruptions due to the transport of higher priority signalling traffic.
The congestion performance requirements of the user traffic for the UNI are studied in terms of the stochastic cell loss requirement and the deterministic upper-bound cell delay requirement. However, in order to investigate the stochastic cell loss phenomenon due to buffer overflow, the stochastic queue behaviour must first be examined. Consequently, a novel algorithm to solve the stationary distribution of the queue length process under short-term heavy traffic and finite buffer capacity conditions is presented.
A novel UNI call admission control scheme is proposed, and its objective is to maintain the required network performance assigned to the UNI access-node by exerting call admission control in the call access phase of each user traffic source. It is analyzed using an input-limit static control model employing stochastic ordering between the cell loss ratio random variable and the desired threshold random variable as a criterion to decide if a new call should be admitted. The cell loss ratio random variable has been chosen as the performance objective rather than the long-term-time-averaged cell loss ratio, so as to take into account of the dynamic nature of bursty traffic sources.
A novel UNI intra-node buffer control scheme is proposed, and its objective is to optimize the network performance of the UNI access-node by exerting buffer control in the aggregate information transfer phase of the user traffic sources. It is analyzed by means of a sequential decision process model characterized by a stationary, Markovian and deterministic threshold control policy.Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate
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Arias, Christopher V. "An evaluation of B-ISDN for the communication architecture requirements of Distributed Interactive Simulation (DIS)." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://handle.dtic.mil/100.2/ADA280783.
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Thesis (M.S. in Information Technology Management) Naval Postgraduate School, March 1994.Thesis advisor(s): Carl R. Jones, Myung W. Suh. "March 1994." Bibliography: p. 58-59. Also available online.
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Schwarz, Albrecht. "Modellierung und Bewertung von Verfahren zur Last- und Leistungsregelung in Steuereinheiten von B-ISDN-, ATM-Vermittlungssystemen /." Stuttgart : Inst. für Nachrichtenvermittlung und Datenverarbeitung, 2002. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=009999625&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Wu, Jiyong. "Contribution a l'etude d'une chaine de telecommunication privee haut debit a integration de services (b-isdn)." Paris, ENST, 1991. http://www.theses.fr/1991ENST0020.
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La chaine de telecommunication privee haut debit presentee est constituee de plusieurs elements: le terminal multimedia, le commutateur prive haut debit, le reseau optique et le commutateur aim comme nud du reseau. Les objectifs principaux de cette conception sont: a) introduire de nouveaux services dans le domaine prive comme messagerie vocale visiophone, videoconference. . . ; b) etendre la limite geographique et la connectivite des systemes et des reseaux existants: c) experimenter et valider les technologiques nouvelles: d) mesurer de facon quantitative les besoins reels de nouveaux services. La contribution a cette etude se divise en 5 parties: 1) proposition et etude des paquetiseurs et d'un multiplexeur de paquets pour le terminal multimedia; 2) definition d'un nouveau commutateur prive haut debit multiservices (avec des brevets europeens). Ses performances sont etablies par modelisation et simulation; 3) etude de la politique de l'allocation des canaux en mode circuit envisagee pour fddi-ii et qpsx. Ensuite, proposition des politiques nouvelles afin d'ameliorer les performances; 4) etude de deux files d'attente en competition avec capacite finie et application pour la definition des schemas de priorite de transmission dans l'interconnexion des pbx haut debit et des reseaux locaux; 5) performance d'un commutateur atm pour les services video
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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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Wu, Jiyong. "Contribution à l'étude d'une chaîne de télécommunication privée haut débit à intégration de services (B-ISDN) : version non confidentielle /." Paris : École nationale supérieure des télécommunications, 1991. http://catalogue.bnf.fr/ark:/12148/cb355858407.
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Hartanto, Vincentius Felix. "User-network oriented call control and traffic management in B-ISDNs." Thesis, University of Canterbury. Electrical and Electronic Engineering, 1994. http://hdl.handle.net/10092/5745.
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This thesis presents a framework for call control and traffic management in B-ISDNs. Unlike the conventional focus on network capabilities, this thesis proposes a novel user-network oriented approach. This approach allows user terminals to perform control functions and to make use of service-specific information, such as the nature of calls and the nature of information within connections of the calls, in order to reduce call establishment delay and to minimise the bandwidth required by the connections.
With B-ISDNs being expected to support general multiparty multimedia calls, a call control scheme is required to process such calls, and to establish and to manage the association among the parties (users) and the connections associated with each call. To this end, a hierarchical call control structure is proposed in this thesis. The structure allows the control functions to be carried out either by the network or by the user terminals depending on the level of terminal intelligence. The details of the call control structure along with the required signalling protocol are described. Examples of both simple and complex call establishments are provided in order to illustrate the proposed call control.
Within each connection of a call, cell loss priority (CLP) can be used to identify cells having different loss probability requirements. Users can use CLP for tagging cells containing less essential information. Furthermore, we propose the possibility for users to police their traffic appropriately and to selectively tag any excess cells, considered expendable or else protected by end-to-end error recovery schemes, as being low priority; this avoids indiscriminate cell losses that would be caused by network usage of CLP.
Not all connections will allow tagging of cells. Therefore, based on the existence or absence of pretagged or low priority cells in a connection, we can distinguish two classes of connections, namely connections without pretagged cells (the class of pure connections) and connections with pretagged cells (the class of mixed connections). The traffic management framework for pure connections is very well established, but this is not the case for mixed connections. Therefore it is of the interest in this thesis to present a traffic management framework for mixed connections, which includes connection admission control, usage parameter control, as well as buffer management and scheduling policy.
Connection admission control algorithms, based upon a virtual bandwidth concept, involve a search for an equivalent bandwidth required by a connection. With mixed connections, there are two different QoS requirements. Existing methods which satisfy both requirements are either specific to some services, or time consuming, due to the required separate search for sufficient bandwidth to satisfy each QoS requirement. Considering these drawbacks, we propose two bandwidth allocation schemes in a homogeneous traffic environment and one scheme in a heterogeneous traffic environment. The methods require a single search for bandwidth and fully exploit the statistical dependency between the high and low priority traffic, and, as the result, allocate smaller bandwidth than previously proposed methods.
After a connection has been admitted, a usage parameter control or policing algorithm is required, to monitor and to control the traffic within the connection during the information transfer phase, in order to ensure that the negotiated traffic parameters are not exceeded. The leaky bucket algorithm is the basis for the most popular policing schemes. In order to make sense of the large number of leaky bucket schemes, two classifications are proposed. Most of the schemes cannot take into account the presence of pretagged cells in mixed connections. Therefore, in order to overcome this drawback, we propose four modifications to the original leaky bucket scheme. Comparative studies based on both analytical and simulation techniques show that the newly proposed leaky bucket schemes can offer better quality of service for high priority traffic than earlier proposed leaky bucket schemes.
The convergence within a network of high priority cells in pure connections and both high and low priority cells in mixed connections can lead to the interference between the cells in the sense that overload of low priority cells in a mixed connection can degrade not only the QoS of other mixed connections but also the QoS of pure connections. Therefore it is necessary for the network to implement a buffer management scheme to minimise such interference, while simultaneously trying to maximise the utilisation of network resources. A new buffer policy, called dual queues with limited cyclic service (DQCS), is developed and shown to achieve both objectives by both discrete-time performance analysis and simulation.
The thesis concludes with proposals of some novel schemes for further study in order to develop an overall call control and traffic management framework for B-ISDNs.
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ALFEO, MARIANGELA JESSICA. "Staphylococcus aureus iron-regulated surface determinant B (IsdB) protein interacts with von Willebrand factor and promotes adherence to endothelial cells." Doctoral thesis, Università degli studi di Pavia, 2021. http://hdl.handle.net/11571/1446314.
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Yeh, Yi-Chun, and 葉怡君. "Authentication Protocols for B-ISDN Billing System." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/67058558371253532411.
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楊嘉利. "Analysis of interface between PABX and B-ISDN." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/52924166160702770518.
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Yang, Chia-Li, and 楊嘉利. "Analysis of Interface between PABX and B-ISDN." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/16998535077379450499.
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碩士國立臺灣科技大學
工程技術研究所
81
The cell relay will new skill of base structure of high - speed network in future . It call a cell switching or ATM ( Asynchronous Transfer Mode). It be accepted by industry union. The thesis major inquire about interface between PABX ( Private Automatic Branch eXchange) and B-ISDN. The interface be comprised of two part. The PABX to network interface part cut frame of variable lenghth to small cell of settle length then use multipexer linking a great many line. The network to PABX interface part unite with cell after pass demultiplexer. The thesis use queueing theory and probability to ask the cell probability distribution function in buffer, and ask cell loss probability and average waiting time.
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Huang, Zhi-Yao, and 黃志堯. "study of interconnecting FDDI networks through B-ISDN." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/74163906764838882214.
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Wang, Yau-Chung, and 王耀中. "A Study for Interconnecting DQDB MAN via B-ISDN." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/87681250292887072307.
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碩士國立中央大學
資訊及電子工程研究所
82
This thesis focuses on the problems arising with the inter -working unit ( or gateway) which connects a Distributed Queued Dual Bus (DQDB) Metropolitan Area Network (MAN) with Broadband Integrated Service Digital Network (B-ISDN) based on the technique of Asynchronous Transfer Mode (ATM).The bandwidth allocation for setting up a virtual connection between gateway and ATM network is our main concern. The ATM network architecture is based on a connection- oriented technique. As to DQDB MAN, there are two methods for medium access. One is Pre-Arbitrated (PA) access mode which supports isochronous service and the other is Queued- Arbitrated (QA) access mode which supports non-isochronous service. Although DQDB MAN may provide connection-oriented data service based on QA access mode which is expected to be a better solution in terms of service quality and simplicity of implementation, however, it has not been clearly specified yet. For the moment, the problem we are concerned with is how to interconnect connectionless DQQB MANs via connection-oriented ATM network and make the best use of resources. In this thesis, we propose a new estimation algorithm for connectionless DQDB MAN interworking with ATM to estimate incoming traffic rate rapidly and accurately. This results in low loss rate and minimal queueing delay in gateway buffer compared with other schemes which have been proposed. In addition, based on the knowledge of required bandwidth, we propose a negotiation strategy for bandwidth allocation. Simulation results show that the proposed scheme performs better than others in most cases. Further, we present another method which we called "confirmation mechanism" to achieve the lowest cell loss rate for internetting DQDBs via B-ISDN under a tolerable coverage of queueing delay.
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Huang, Chih Yao, and 黃志堯. "A Study of Interconnecting FDDI Networks Through B-ISDN." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/11200432338131092037.
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碩士國立清華大學
電機工程研究所
81
FDDI網路以其高速及能同時提供同步與非同步服務的能力，近年來已被廣 泛認可為一最具吸引力的一種Back- bone 結構來介接各種現存的、將建 的中、低速區域網路 (LAN) ，以及一種Backend 結構來連接高速電腦。 當FDDI網路繁殖到一個程度便會發生介接的問題。B- ISDN以其具備控制 發訊與資料傳送分離的網路運作方式，不但可讓資料傳送品質可以預期， 甚且可以簡化硬體製作而大大提升介接單元的工作速度。這些特質使得B- ISDN富於潛力來提供像FDDI這樣高速區域網路間的介接問題的解決方案。 本論文的目的在研究利用B-ISDN來介接散處各地的 FDDI 網路，使成為一 個範圍廣大的單一 FDDI 網路( Extended FDDI)。使位於各個FDDI網路上 的所有終端機誤以為是處於同一個FDDI網路上而無所覺。也就是要把B- ISDN這個介接介質透明化。我們探討能達成這個目的的介接單元( Interworking Unit, IWU)之結構。經由電腦模擬驗證，我們所提之介接 單元架構具有 fast forwarding 之能力、有效地利用B-ISDN之頻寬及與 B-ISDN 有良好的協和性。本論文安排如下: 第二章主要介紹在兩個不同 的網路介接時，所遭遇之問題。其中包含介接機制與介接單元之結構、定 址方式、路由方式(routing) 及相互轉換之協定第三章中主要討論我們所 提出之介接單元架構。此架構主要包含四個機制。第四章先討論我們所建 立之模擬模型。然後利用此一模型來驗證我們所提架構之有效性。
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LIN, ZHI-HONG, and 林志鴻. "Traffic smoothing at ATM adaptation layer for B-ISDN." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/05301025486842264735.
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CHEN, JIA-MING, and 陳加銘. "Queueing analysis of a customer equipment in B-ISDN." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/36767705945296516009.
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Cheng, Ray-Guang, and 鄭瑞光. "Traffic Control Strategies for B-ISDN Using Fuzzy Sets Theory." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/60005630939271915462.
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碩士國立交通大學
電信研究所
81
Due to the demand for the multimedia services, the broadband integrated service digital network (B-ISDN) has increasingly received high attention. Since the characteristics of B-ISDN are quite different from the currently used network. It will be difficult to model the statistical behaviors of the diverse traffic and their service requirements. The traditional method, based on queueing model analysis, may not be suitable for the traffic control problems because the model will be very complicated and the solution could not be obtained. We believe that the fuzzy logic may become a suitable tool for dealing with the ATM traffic control problems. In this thesis, the fuzzy logic controller (FLC) is used to cope with the traffic control related problems. An fuzzy congestion controller is proposed to cope with the congestion control related problem. Furthermore, a strategy to integrate the operation of an admission controller and a congestion controller is also proposed. According to the simulation results, we can find that the FLCs have a great potential in these areas.
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Zhou, Fang Xin, and 周芳信. "The ATM adaptation layer design between LAN and B-ISDN network." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/32164918938061685615.
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Lin, Min-Yi, and 林明毅. "Effects of Call Occupancy Distribution on Cell Loss in B-ISDN." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/10959426582244744586.
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碩士國立臺灣科技大學
電機工程研究所
84
As is well known, B-ISDN based on ATM will bring many new challenges to network designers. One of these challenges is how to dimension the network in order to satisfy the QoS re- quirements of a call at different time levels,e.g.,call blocking probability at the call level and cell loss, delay, and jitterhe cell level. It has been pointed out that aggregate cell loss probability taking call blocking into account could beral orders of magnitude smaller than full-load cell loss probability without taking call blocking into account. We show that call occupancy distribution has a great influence on aggre- gate cell loss probability. More specifically, the effects of bandwidth requirements, peakedness of call arrival process, call admission control, as well as call blocking probability on call occupancy distribution and in turn on aggregate cell loss proba- bility are demonstrated. It's shown that in general the ratio of-load cell loss probability to aggregate cell loss probabi- lity increases if call blocking probability decreases, or peak- edness of call arrival process increases, or reservation in- creases. Furthermore, it is shown the effective bandwidth based on Gibbens - Hunt approach is too pessimistic in many scenarios with low call blocking probability and/or high peakedness ofarrival processes. In other words, the effective bandwidths can be adjusted(or reduced) in order to increase the mean call occupancy. To verify the accuracy of analytical results, simu- lation results are provided whenever is possible. It is shown both aggregate cell loss and full-load cell loss probability are overestimated by about one or two orders of magnitude but theytical results provide a reasonable estimate for the ratioload cell loss probability to aggregate cell loss proba- bility.
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Ming, Lin Feng, and 林鳳銘. "Design and Implementation of a Fault Tolerant ATM Switch for B-ISDN." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/91086503571847113448.
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碩士國立交通大學
資訊科學學系
83
In this thesis, we propose a new method to build a fault tolerant ATM switch. By this method, we can build an ATM switch which has two non-overlapping paths between each input/output pair. The key component in the proposed switch is a 2x2 FTSE (Fault Tolerant Switching Element) which can be the basic building block for high speed ATM switches. The design of the FTSE-based fault tolerant ATM switch is based on a multi-path, self-routing principle. The FTSE is made with the ability of fault tolerance by adding a few spares to the traditional Switching Element (SE) : mainly one spare Input Controller (IC) and two spare Output Controllers (OCs). By mathematical analysis, we conclude that our ATM switch uses less SEs and have more redundant paths than the other ATM siwtches. To eliminate the blocking problem we provide two shared buffers in the FTSE. The two shared buffers can make the usage of the buffers more efficient and fault tolerant as well. The ATM switch has been described by using VHDL. By VHDL simulation, we have verified the functionality of the switch. We also synthesize the ATM switch to evaluate its delay and area. The simulation and synthesis results demonstrate that the reliability/cost ratio of the FTSE-based fault tolerant ATM switch is better than that of other switches.
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Xu, Yu Shen, and 徐育申. "The ATM adaptation layer design between H.261 and B-ISDN network." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/33123460176414172405.
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Chang, Chih-Tar, and 張志達. "The Design and Implementation of Post Processor in B-ISDN Simulation Testbed." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/65030154448041564004.
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Hsiao, Ming-Tsung, and 蕭明宗. "A Congestion Control Strategy in Remote Multiplexing Node (RMN) of B-ISDN." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/92306581753615118425.
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碩士國立交通大學
電信研究所
81
In the late few years, Broadband ISDN (B-ISDN) has been raised attention as a communication architecture which can support multimedia applications on asynchronous transfer mode (ATM) networks. This paper presents several source models such as data, voice, and video. Especially on video model, we considered scene change condition. Then, we applied those model to ATM network for congestion control. We use two level threshold on buffer queue length to selective discard some less significant packets. A mathematical model of this system is analysed and queue length distributions are derived. It is shown that the control procedures can achieve significant performance improve- ment over uncontrolled system. In chapter 2, we propose a two-threshold reactive congestion control strategy with partial reject. The two-threshold conges- tion control strategy will be active when the queue length exceeds a higher threshold and will continue until the queue length drops to a lower threshold for each type of traffic. When the batch size of a new coming arrival exceeding the remaining free buffers of its queue, the system will accept packets until there is no free buffer, and these exceeding packets are re- jected and lost. The major purpose is to get high throughput. In chapter 3, the strategy used in here is similar to chapter 2, but replace ``partial reject" to ``complete reject". When the batch size of a new coming arrival exceeding the remaining free buffer of its queue, the whole batch packets will be complete reject. The purpose is to keep message integrality.
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Pazhyannur, Rajesh S. "Feedback based flow control of B-ISDN/ATM Networks with significant propagation delays." 1996. http://catalog.hathitrust.org/api/volumes/oclc/36335608.html.
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Thesis (Ph. D.)--University of Wisconsin--Madison, 1996.Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 154-157).
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GAO, HENG-ZHI, and 高恆智. "A reactive congestion control for network termination of B-ISDN with synchronous servers." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/78775994755377050909.
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Schwarz, Albrecht [Verfasser]. "Modellierung und Bewertung von Verfahren zur Last- und Leistungsregelung in Steuereinheiten von B-ISDN-ATM-Vermittlungssystemen / vorgelegt von Albrecht B. Schwarz." 2002. http://d-nb.info/965232247/34.
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Pitz, Stefan [Verfasser]. "Untersuchung des Einflusses von Steuerungsalgorithmen auf die Qualität von Multimediadaten im B-ISDN / vorgelegt von Stefan Pitz." 2002. http://d-nb.info/968467008/34.
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Yu, Oliver T. W. "Connection architecture and protocols to support user terminal mobiltity over an ATM/B-ISDN personal communications network." Thesis, 1997. http://hdl.handle.net/2429/6617.
Full textAbstract:
Future personal communications networks (PCNs) will support personal and terminal
mobility based on the B-ISDN platform, and will likely employ ATM-based backbone
networks to interconnect wireless mobile networks. This thesis addresses the problem
of providing robust, fast and seamless network-wide handoffs over an ATM-based PCN
to support non-restrictive terminal mobility and to maintain connection-oriented performances
during calls in order to enable handoff transparency to users. A novel "mobile
virtual circuit (MVC) connection architecture" is proposed in the ATM layer to facilitate
fast handoffs and to allow mobile and non-mobile traffic to share connection resources.
The proposed MVC maintains the current and the potential handoff connections terminated
at the neighbouring base stations as a dynamic connection tree, which converges at
a root node in the ATM-based backbone to enable connection reuse during handoff. To
minimize resource overhead and to enable fast handoff, the proposed MVC predetermines
routes for potential handoff connections during call setup and after each successive handoff,
and employs the proposed robust and fast scheme of generic bandwidth reservation
along the predetermined route to complete the establishment during handoff.
A novel "general real-time connection rerouting service" in ATM/B-ISDN is proposed
with capabilities that can be configured to support robust, fast and seamless call
rerouting over fixed connections in general and to support call handoffs over ATM-based
PCN in particular. This service includes: (1) a novel packet ordering synchronization
transaction protocol (POSTP) to prevent call disruptions due to transient data loss and
sequencing errors during the traffic rerouting phase; (2) a novel robust and fast resource
reservation transaction protocol (RFRTP) to enable fast connection establishment over
a predetermined route with optional localized rerouting over congested or failed links.
To support general real-time connection control services (e.g., the proposed rerouting
service), extensions to the SS7-based signaling network are proposed with source-routing
associated-CCS and inband signaling to provide fast distributed signaling transport and
synchronization data transport respectively.
To facilitate robust handoffs or to maintain the probability of forced call termination
due to handoff blocking under non-stationary call arrival condition, a novel "dynamic
guard channel resource management architecture" is proposed to adapt the number of
guard channels in each cell according to the current estimate of the handoff arrival rate
derived from the current number of ongoing calls in neighbouring cells and the mobility
pattern, so as to keep the handoff blocking probability close to the targeted objective
while constraining the new call blocking probability to be below a given level. The
proposed scheme is applicable to channel allocation over cellular mobile networks, and
is extended to bandwidth allocation over the backbone network. It is demonstrated
that fast, robust and seamless network-wide handoffs over an ATM-based PCN can be
achieved by integrating the proposed service and architectures. Handoff performance is
analyzed in terms of handoff processing delay and forced call termination probability.
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Gangadhar, Nandyala Dhani. "Analysis Of Discrete-Time Queues With Applications To ATM Based B-ISDNs." Thesis, 1995. https://etd.iisc.ac.in/handle/2005/1644.
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Gangadhar, Nandyala Dhani. "Analysis Of Discrete-Time Queues With Applications To ATM Based B-ISDNs." Thesis, 1995. http://etd.iisc.ernet.in/handle/2005/1644.
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Zhang, Bin. "Performance evaluation of rate-based congestion control schemes for ABR service over broadband satellite networks interworking with ATM/B-ISDNs." Thesis, 1997. http://hdl.handle.net/2429/6461.
Full textAbstract:
Asynchronous Transfer Mode (ATM) is an emerging networking technique which supports
quality of service (QoS) guarantees for different traffic types. The Available Bit Rate (ABR)
service is proposed to provide the efficient use of limited network resources for data traffic.
For ABR service, ATM Forum has suggested the rate-based congestion control schemes:
Explicit Forward Congestion Indication (EFCI, a binary feedback scheme) scheme, Explicit
Rate (ER) scheme, and Enhanced Proportional Rate Control Algorithm (EPRCA). In addition,
the segmented closed-loop scheme was also recommended to reduce the size of the control
loop.
In this thesis, the effects of satellite link (long delay) on the EFCI and ER schemes are
analyzed by using calculation results. Based on the analytical results, the simulations of endto-
end congestion control schemes are performed. For the EFCI scheme, both the calculation
and simulation results show that the long delay will worsen the network performance in
terms of buffer occupancy, link utilization and cell loss ratio (CLR). Our study also finds
that the buffer threshold, buffer size in ATM switch, as well as the rate increase and decrease
factors, will affect the buffer occupancy, link utilization and cell loss ratio in the various
ways. Procedures are suggested to minimize the buffer requirement and maximize the link
utilization with the required CLR and maximum link delay. Moreover, a delay-based method
(DBCI scheme) is proposed to dynamically adjust the traffic rate in order to minimize the
buffer requirement. For the ER scheme, since-the product of data rate and link delay in each
ABR connection plays a key role on the buffer occupancy of the ATM switch, the delaybased
adaptation method (DBER scheme) to reallocate the left-over bandwidth is proposed.
Simulation results show that the suggested approaches can improve the buffer occupancy efficiently when congestion happens. The generic and delay-based EPRCA schemes are
investigated with different parameters in different links. Simulation results are compared and
the delay-based EPRCA scheme is found to be a more efficient scheme. Furthermore, the
segmented (double-loop) congestion control schemes are evaluated by simulations methods
and analyzed with different combinations of EFCI and ER schemes. The results are compared
with those of end-to-end (single-loop) schemes. From the comparisons, the segmented
congestion control scheme is considered to be a better scheme in the long delay environment
because it can respond to congestion more quickly and be able to distribute the queued cells
(e.g. the long queue length occurred in the single loop scheme) into more ATM switches
involved in the congestion.