MANET中基于信号强度的TCP拥塞控制算法研究  

ON CONGESTION CONTROL ALGORITHM IN MANET BASED ON SIGNAL STRENGTH

作　　者：吴金亮[1] 王猛[2] 刘伯栋[2] 孟小波[2] 

机构地区：[1]北京航空航天大学电子信息工程学院 [2]中国人民解放军63888部队

出　　处：《计算机应用与软件》2008年第7期226-227,240,共3页Computer Applications and Software

摘　　要：针对MANET中较高比特误码率、路由故障等因素引起的大量数据丢包和重传提出跨层设计的TCP拥塞控制算法。算法根据接收到的信号强度预测路由断点并提前建立备份路由,拯救传输中的数据包,解决传统TCP的拥塞控制算法在MANET中存在的问题。实验结果表明,优化算法极大地提高了TCP流的平均吞吐量。A cross-layer designed TCP congestion control algorithm is proposed to solve a comparatively high likelihood of packet loss and retransmission due to high bit error rate and routing trouble in MANET. The algorithm predicts the occurrence of a link failure based on re- ceived signal strengths and initiates a route re-discover proactively before the link actually fails to salvage the packets in transit, and the problem in traditional algorithm in MANET is solved. The experiment results show that the new algorithm increases its average throughput of TCP flow in MANET.

关 键 词：跨层 移动自组网 拥塞控制 TCP 

分 类 号：TP393.4[自动化与计算机技术—计算机应用技术] TN929.5[自动化与计算机技术—计算机科学与技术]