TCP Yolanda:无线和有线混合网络中的TCP改进算法

在TCP Westwood基础上提出了一种适合无线有线混合网络的TCP改进算法——TCP Yolanda，该算法以瓶颈链路缓冲区长度测量值为参数，采用分两个子阶段的方式改进拥塞避免阶段以更有效进行传输控制，使传输过程能更长时间保持在稳定的高速率状态，并能在误码率较高的无线网络环境下快速恢复拥塞窗口大小，另外在传输发生错误时能判断丢包原因并进行区别处理。基于ns2的仿真实验表明，改进后的TCP算法在网络传输吞吐率、传输稳定性等方面的性能有较大提升，并且保持较好的连接公平性和友好性。

TCP Yolanda:a modified TCP scheme over wire and wireless hybrid networks

Based on the TCP Westwood,this paper proposes a modified TCP algorithm for wire-wireless hybrid networks, named TCP Yolanda.The algorithm is characterized by the following:according to the measurement values of bottleneck link buffer length,the congestion avoidance phase of TCP is divided into two sub-phases for better control,which keeps TCP connection stable at high speed for a long time.Furthermore,under a higher bit error rate,the cause of packet lost in transmission can be distinguished and proper acti...