TCP拥塞控制算法  

TCP congestion control algorithm

作　　者：刘俊[1] 童学红[2] 

机构地区：[1]深圳信息职业技术学院电子通信技术系,广东深圳518029 [2]腾讯科技(深圳)有限公司,广东深圳518000

出　　处：《计算机工程与设计》2011年第7期2309-2313,共5页Computer Engineering and Design

摘　　要：针对广泛应用的TCP Reno慢启动算法与拥塞避免算法的问题,在研究分析TCP Reno拥塞控制算法的基础上,提出一种新的拥塞控制算法——在慢启动阶段采用线性增长算法,而在拥塞避免阶段采用基于拥塞窗口的对数增长算法,从而一定程度上解决了TCPReno慢启动不公平问题与拥塞避免阶段拥塞窗口增长过于激进的问题。通过NS仿真实验说明了新算法的可行性,并对其吞吐量、公平性、友好性进行评估,仿真结果表明了该改进的TCP拥塞控制算法的有效性。Aiming at the drawback ofTCP Reno slow-start algorithm and congesfion avoidanee algorithm, TCPRenocongestioncontrol algorithm is researched and a novel algorithm is proposed a logarithmic algorithm based on the growth of a congestion window during congestion avoidance period and a linear algorithm during slow-start period. Consequently, thefaimessofTCPRenoslow-startalgorithm and radicalness of TCP Reno congestion avoidance algorithm are solved to the extent. Simulation analysis shows the feasibility of the new algorithm, its throughput, fairness and compatibility is evaluated by NS simulation. The simulation results show the effectiveness of the algorithm.

关 键 词：传输控制协议 网络拥塞 拥塞控制 拥塞窗口 慢启动 拥塞避免 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]