Performance Analysis of Concurrent Multicast / TCP Traffic Over Lossy High Delay Links

Abstract

In this paper we investigate the performance of TCP-friendly congestion controlled multicast traffic over satellite links, an example for a multicast congestion control protocol we simulate multicast enhanced loss-delay based adaptation (MLDA) error links showing the typical loss and delay characteristics of satellite links. In the context of our investigation we concentrate on performance of MLDA over satellite links in terms of bandwidth utilization and fairness towards different TCP versions (Westwood, Hybla). Finally we show that through the use of loss differentiation scheme the performance of MLDA can be decreased considerably