A flow Control based Multi-rate Congestion Control Mechanism in Heterogeneous Network Environment

This paper present a flow control based Multi-rate Congestion Control Mechanism in a heterogeneous network. Multicasting is a promising approach for mass distribution of streaming media. In single rate multicast (SR-M) [1], [2], [4] approach, the source sends data to all receivers at a single rate that is limited by the slowest link or highest packet loss receiver between source and receivers. Various single-rate congestion control approach has been proposed developed, but these approaches are not well suited in a heterogeneous network environment where receivers have different capacities. To overcome the drawback of single rate multicast congestion control, multi-rate congestion control approach comes into the picture where the sourcecan send data at different rates to all receivers according to their capacity. This paper provides a proficient technique based on flow control and link utilization. Ns-2 network simulation package has used to implement our MR-MCC approach. Simulation results demonstrate the great performance of our MR-MCC approach regarding throughput, packet loss than other existing approaches.