Research on Delay and Packet Loss Control Mechanism in Wireless Mesh Networks

In wireless mesh networks, the performance of TCP was degraded rapidly due to the interference in wireless channels. To deal with this problem, A TCP control mechanism based on the character of delay distribution and wireless packet loss is proposed in this paper. Firstly, this delay model can capture the delay exactly that a packet experiences at one hop transmission with rigorous theoretic derivation and lower overhead, and computational complexity. Then we analyze the character of the wireless packet loss. Furthermore, this mechanism points out the control method at transport layer to deal with the different type of packet loss. The simulation results show that our mechanism can decrease the packet loss rate efficiently.