PLM-CSFQ: a new integrated multicast congestion control algorithm

In this paper, a framework for transmission of multicast layer via a packet-pair mechanism is proposed. The performance of PLM using CSFQ queueing mechanism has been evaluated through simulation and showed that PLM/CSFQ exhibits reasonable losses in several experiments. However one of the limitations of the new model is the ability to scale to a large number of PLM sessions, which results in further packet losses experienced by each receiver as more sessions are introduced into the network. The cause is the insufficient reduction of the number of layers per receiver in times of heavy congestion. This is due to the nature of the PLM protocol and the packet mechanism. Overall result from experiments shows that PLM/CSFQ was able to adapt to a network of heterogeneous receivers and it also scales well with the number of receivers that join the same session.