Research on double-end cooperative congestion control mechanism of random delay network

Propagation delay is the main factor of affecting the network performance. Random propagation delay has an adverse impact on the stability of feedback control mechanism. We argue that some existing schemes which try to control the node-end-systems queue donpsilat work well when random propagation delay acts on the models. To find a solution to this problem, a double-end cooperative congestion control mechanism is proposed and analyzed. We have studied the performance of the control mechanism via simulations on OPNET software. Simulations show that the mechanism can improve network performance under random propagation delay. And in the node-end-systems, the probability of cells discard is lesser.