无线链路的TCP性能问题及其改善  

Improve the TCP Performance over Wireless Link

作　　者：叶敏华[1] 刘雨[1] 张惠民[1] 

机构地区：[1]北京邮电大学信息工程学院,北京100876

出　　处：《电子科技大学学报》2003年第2期179-183,共5页Journal of University of Electronic Science and Technology of China

基　　金：国家自然科学基金资助项目;编号:60072036

摘　　要：介绍了无线链路上的TCP性能问题和相关的工作。提出了一种改进从移动主机到固定网络方向TCP性能的方案,在基站处设置TCP代理来监视在无线链路上丢失的TCP报文段,通过复制和发送重复的ACK来触发MH端TCP的快速重传,有效地防止超时重传的发生。计算机仿真结果表明此方案具有良好的性能。The TCP performance on wireless link and the related works are introduced. A new scheme is proposed to improve the TCP performance over the wireless link on the direction from mobile host to fixed network. It installs a TCP agent at the base station to monitor the segments dropped on the wireless link, then triggers TCP fast retransmission on the MH side by replicating and forwarding specific ACKs, which can effectively avoid timeout retransmission. Simulation results show that the new scheme has favorable performance.

关 键 词：传送控制协议 应答 传送控制协议代理 报文段 无线链路 TCP 

分 类 号：TN915.04[电子电信—通信与信息系统]