Performance of a connectionless protocol over ATM

Geert Heijenk, A.P.A. van Moorsel, I.G.M.M. Niemegeers

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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    Recent studies show the existence of a demand for a connectionless broadband service. In order to cope with this demand, a connectionless protocol for the B-ISDN needs to be designed. Such a protocol should make use of ATM and the ATM Adaptation Layer. It needs to specify destination and bandwidth of connections to the ATM network without advance knowledge of the traffic that has to be transferred over these connection. A possible mechanism which can cope with this problem, the 'On-demand Connection with Delayed Release' (OCDR) mechanism, is described. Its eficient operation is based on the assumption that there exists a certain correlation between subsequently arriving CL packets. Two different arrival processes are used to evaluate the performance of the OCDR mechanism: a Poisson arrival process, and a Markov Modulated Poisson Process (MMPP) which models a bursty trafic source. Markov models of the OCDR mechanism have been constructed for both arrival processes. For the madel with Poisson arrivals, a closed form solution is presented. The model with MMPP arrivals is solved numerically. Compared to a 'Permanent Connection' mechanism significant bandwidth reductions can be obtained provided that the offered trafic has a bursty nature. Furthermore, the OCDR mechanism has the advantageous property that the obtained average node delay is not strongly related to the intensity and burstiness of the offered trafic.
    Original languageEnglish
    Title of host publicationProceedings of the International Workshop on Advanced Communications and Applications for High Speed Networks, IWACA '92
    Place of PublicationMunich, Germany
    Number of pages8
    ISBN (Print)not assigned
    Publication statusPublished - 1992
    EventInternational Workshop on Advanced Communications and Applications for High Speed Networks 1992 - Munich, Germany
    Duration: 16 Mar 199219 Mar 1992

    Publication series



    WorkshopInternational Workshop on Advanced Communications and Applications for High Speed Networks 1992


    • METIS-112769
    • EWI-3684
    • IR-15887


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