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This paper presents a performance analysis of different methods used to select the congestion representative over the genetic algorithm based Congestion Representative selection in a multicast multirate network. A huge volume of control traffic is introduced into the network, and the routers are heavily loaded because the entire rate control burden has been shifted to them. Therefore, the number of these operations is limited during a period and restricts the effectiveness of these multicast congestion control methods. In multi-rate technique, the source maintains several layers each with different transmission rate, and receivers give to different subsets of these layers depending on their and network's bandwidth and congestion circumstances.
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