Round Robin :

The Throughput of the Round Robin in the function of offered load. Considering the saturation in the graph, we have 50 percent of load assigning to each traffic. The throughput of CBR traffic will decrease by the ratio of the average packet size corresponding to each flow. Indeed, packets with a larger size will be served more. After saturation, the increasing loss leads to the delay of packets represented. Besides, the delay of CBR traffic has a significant increase concerning the VBR traffic, and this is because of more packet loss. At low loads (before saturation zone), while the throughput of CBR is equal to VBR, the CBR traffic experience less delay concerning VBR, which can be justified because of packet size. In statistics, the coefficient of variation (CV) is a simple measure of relative delay dispersion. Corresponding delay coefficient variance depicted.