无线网中面向TCP友好的拥塞控制算法  

TCP-friendly Congestion Control over Wireless Networks

作　　者：张清华[1] 林亚平[1] 蒋红艳[1] 

机构地区：[1]湖南大学计算机与通信学院,长沙410082

出　　处：《科学技术与工程》2006年第4期371-374,共4页Science Technology and Engineering

摘　　要：在LDA协议的基础上,提出一种改进的端到端无线网TCP友好拥塞控制算法(WLAD+)。WLDA+根据无线中的拥塞用一种类似于处于丢包和延迟状态的TCP连接的方式来调节发送者的传输行为。考虑到无线网的特殊性,WLDA+加进了错误区分模式来监测无线网中丢包。通过模拟实验评价了WLDA+模式的性能,实验结果表明应用错误区分模式能有效地达到无线网的拥塞控制。An end-to-end adaptation scheme, called the wireless loss-delay based adaptation algorithm （WLDA＋is presented）. WLDA＋ adapts the transmission behavior of multimedia senders in accordance with the network congestion state in wireless environments, WLDA＋ is based on the loss-delay based adaptation scheme which adjusts the transmission behavior of the senders in a manner similar to TCP connections suffering from equal losses and delays. To take the specific characteristics of wireless links into account, WLDA＋ incorporates error differentiation schemes to detect the loss nature in the wireless channel. The performance of WLDA＋ is then investigated by simulating the behavior of this algorithm under different network to pologies.

关 键 词：无线网拥塞控制 TCP友好性 错误区分模式 传输速率 

分 类 号：TN919.3[电子电信—通信与信息系统]