Distributed Algorithms for Computation of Fair Rates in Multirate Multicast Trees

Multicast Trees Saswati Sarkar and Leandros Tassiulas Dept. of Electrical and Computer Engineering and Institute for Systems Research University of Maryland, College Park, MD, USA email addresses: [email protected], [email protected] Abstract|We study fairness in arbitrary networks with multicast capabilities. Multicast tra c in internet and ATM provides a motivation for studying these networks. A study of fairness in multicast networks poses several interesting problems e.g., the issue of intra-session fairness in addition to that of inter-session fairness in unicast networks. We develop a mathematical framework to model the fair allocation of bandwidth in multirate multicast networks with minimum and maximum rate constraints. We present distributed algorithms for computation of maxmin fair rates allocated to various source-destination pairs.