Simulation and Application of Wireless Network Congestion Control

Study on the wireless network congestion control problem.Traditional wireless network TCP congestion control algorithms cannot distinguish lost packages of the network congestion and network random errors,causing the low network bandwidth utilization rate,and the network congestion is very serious,sometimes even leads to network collapse.In order to reduce the probability of network congestion,an improved TCP congestion control algorithm is proposed.The control algorithm can effectively distinguish the lost packages of network congestion and network random errors based on network states.At the same time,the mechanisms of congestion avoidance,rapid retransmission and rapid recovery of the traditional TCP network congestion control algorithm were ameliorated to improve the performance of the network.The improved network control algorithm is tested based on the simulator NS2,and the experimental results show that the algorithm enhances the network bandwidth utilization and improves the average throughput,and avoids the wireless network congestion.