摘要
TCP Westwood(TCPW)协议在误码率较高、带宽不稳定的无线网络环境下,已经表现出比传统TCP更为优越的性能,但它不能区分丢包的原因,在带宽利用率及性能上仍显不足。针对此问题,提出了TCPW改进算法TCPW-J,基于带宽估计值的变化情况划分网络拥塞等级,以区分拥塞丢包和无线丢包。仿真结果表明,TCPW-J算法提高了网络带宽利用率,并保持了较好的公平性和友好性。
TCP Westwood （TCPW） has shown more superior performance than traditional TCP protocol in the error rate is high,unstable bandwidth wireless network environment.But it can not distinguish the reason of packet loss.Its bandwidth utilization,and performance is still insufficient.For this problem,the proposed the TCPW improved algorithm TCPW-J divided the network congestion level based on bandwidth estimation,to distinguish between congestion losses and wireless packet loss.Simulation results show the TCPW-J algorithm improves network bandwidth utilization,and maintains good fairness and friendliness.
出处
《电子技术应用》
北大核心
2013年第10期102-104,108,共4页
Application of Electronic Technique
