Congestion control schemes in prioritized ATM networks

Parviz Yegani, Marwan Krunz, Herman Hughes

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Scopus citations


One of the fundamental challenges facing broadband information transport is to determine congestion control strategies to support multiple classes of traffic in the future Asynchronous Transfer Mode (ATM)-based Broadband Integrated Services Digital Networks (B-ISDN). To accomplish this in a flexible and a cost-effective manner, priority classes for the different services are commonly used. In this paper, we study priority queueing schemes implemented in statistical multiplexer with shared and separate buffers, whose input consists of superposition of voice and data traffic. A performance comparison is given for two buffer access schemes: the common Nested Threshold Cell Discarding (NTCD) with single shared buffer and NTCD with Multiple Buffers (NTCD-MB). The arrival process to the multiplexer is approximated using a Markov Modulated Poisson Process (MMPP). It is shown that when implementing the NTCD-MB priority scheme, the parameters of the switching node can be adjusted in such a way that the service quality is guaranteed for different classes of traffic. The improved performance as a result of implementing such scheme is investigated via simulations.

Original languageEnglish (US)
Title of host publicationConference Record - International Conference on Communications
PublisherPubl by IEEE
Number of pages5
ISBN (Print)0780318269
StatePublished - 1994
EventProceedings of the 1994 IEEE International Conference on Communications - New Orleans, LA, USA
Duration: May 1 1994May 5 1994

Publication series

NameConference Record - International Conference on Communications
ISSN (Print)0536-1486


OtherProceedings of the 1994 IEEE International Conference on Communications
CityNew Orleans, LA, USA

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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