高速拥塞控制端算法的仿真与分析  

The Simulation and Analysis of Congestion Control Algorithm for High Speed Network

作　　者：王猛[1] 刘伯栋[1] 孟小波[1] 

机构地区：[1]中国人民解放军63888部队

出　　处：《无线电工程》2008年第9期10-12,共3页Radio Engineering

摘　　要：传统的TCP拥塞控制算法是一种可在网络速度、负载增加的情况下都能正常工作的稳健算法。然而随着诸如网格等新应用的出现和网络带宽的提高,现有的TCP协议不能在高带宽延迟乘积网络中高效工作,已成为网络性能瓶颈。针对这一不足,研究了最近提出的高速拥塞控制协议,利用NS2工具仿真了这些协议,从瓶颈带宽、公平性、TCP-Friendly等指标上进行了对比和分析。结果表明,它们均存在着一定的缺陷,最后讨论了下一步的研究方向。Many new protocols have been put forward for high speed network to solve the problems of existing congestion control mechanism in this environment.In this paper, a large collection of recently proposed protocols for high-speed network are evaluated.The simulations of these protocols are done with NS2 tool, and the analysis is made based on the following properties： link utilization, fairness, TCP- Friendly, etc., which shows some important disadvantages in these protocols. Finally, further improvement is peinted out.

关 键 词：友好性 RTT公平性 FAST TCP BIC TCP 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]