Optimization Based Rate Control for Multirate
Koushik Kar, Saswati S. Sarkar, Leandros Tassiulas · 2001
Multirate multicasting, where the receivers of a multicast group can receive service at different rates, is an efficient mode of data de- livery for many real-time applications. In this paper, we address the prob- lem of achieving rates that maximize the total receiver utility for multirate multicast sessions. This problem not only takes into account the heterogene- ity in user requirements, but also provides a unified framework for diverse fairness objectives. We propose two algorithms and prove that they con- verge to the optimal rates for this problem. The algorithms are distributed and scalable, and do not require the network to know the receiver utilities. We discuss how these algorithms can be implemented in a real network, and also demonstrate their convergence through simulation experiments.