An Efficient Bandwidth Assignment Algorithm for Real-Time Traffic in ATM Networks

Abstract

Asynchronous Transfer Mode is the chosen transport mechanism for future broadband networks. Although there is a huge number of mathematical models and experimental results, there are still many problems to be investigated. One of these problems is the way to provide guaranteed performance for real time traffic. In this paper we propose an algorithm for call admission control based on a simple and accurate estimate of the cell loss probability considering both cell scale and burst scale components. The loss probability is estimated from the asymptote of the tail probability by introducing a correction factor. Extensive numerical evaluations and simulations are made to evaluate the accuracy of the proposed algorithm.