Analysing Multimedia Traffic in Real-Time ATM Networks

We present a method for providing response-time guarantees for multimedia traffic in Asynchronous Transfer Mode (ATM) networks. The method extends our ResponseTime Analysis (RTA) for ATM networks to better capture the behaviour of MPEG-type multimedia traffic. RTA is intended for admission control of hard real-time traffic, i.e., it determines if a new connection can be admitted without violating the timing requirements of the new as well as any already admitted connection. We evaluate the extended RTA by comparing it with our original RTA, which does not consider the specific traffic patterns of MPEG-type multimedia traffic. In addition, we show how Weighted Fair Queueing (WFQ) and Calculus for Network Delays (CND) can be adopted to MPEG-type multimedia traffic, and compare the thus obtained analysis with our extended RTA. Evaluations indicate that our new method yields both higher achievable network utilisation and shorter analysis times compared to the original RTA, and higher achievable network utilisation compared to both the adapted WFQ and CND. Copyright 1998 IEEE. Published in the Proceedings of Rtas’99, 2 June 1999 Vancouver Canada. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works, must be obtained from the IEEE. Contact: Manager, Copyrights and Permissions / IEEE Service Center / 445 Hoes Lane / P.O. Box 1331 / Piscataway, NJ 08855-1331, USA. Telephone: + Intl. 732-562-3966.