Minimize the Effect of IGMP Leave Latency in Layered Multicast

Many receivers driven cumulative layered multicast congestion control protocol such as RLM, RLC and FLID-DL used for multimedia application. However, these protocols are suffering with problem of congestion during IGMP leave latency leading to switching between overloading and under loading network state which can´t utilize bandwidth so that quality of service gets degraded. To overcome of these problems, we propose an adaptive algorithm that judicially utilizing the concept of deaf period and dynamic layer which is based on a threshold value of Leave latency. Our propose algorithm perform better in term of QoS and proper bandwidth utilization by effective congestion control during leave latency period.