Explicit rate adjustment for multirate multicast congestion control using TCP throughput equation and packet-pair probe

The multirate multicast congestion control (MR-MCC) scheme has been considered as a suitable scheme for multicasting for a very large heterogeneous group of receivers. In this work, we propose a new design of MR-MCC using explicit rate adjustment based on TCP throughput equation and packet-pair probe. The design goals are: scalability, responsiveness, fast convergence, fairness (including interprotocol fairness, intraprotocol fairness, intrasession fairness and TCP-friendliness) and feasibility. We have implemented our design into a network simulator (ns2) and undertake a performance evaluation to investigate it. The results show that our protocol holds good properties of the design goal.