计算机应用与软件2013，Vol.30Issue(5)：41-43,3.DOI:10.3969/j.issn.1000-386x.2013.05.012
无线异构网络TCP性能研究与改进
RESEARCH ON TCP PERFORMANCE IN WIRELESS HETEROGENEOUS NETWORKS AND ITS IMPROVEMENT
摘要
Abstract
TCP Vegas has a better performance in throughput and stability than TCP Reno in homogeneous networks,but performs much worse in heterogeneous networks where Vegas and Reno coexists.This is because TCP Reno has aggressive control mechanism,which makes Vegas fail in obtaining a fair share of the bandwidth.We first validate this characteristic of unfairness,and further propose an improved Vegas algorithm with dynamic threshold alternation.Simulation results show that the improved control algorithm achieves a higher throughput and better stability in heterogeneous networks than the conventional TCP Vegas.关键词
Reno/Vegas/不公平性/异构网络Key words
Reno/ Vegas/ Unfairness / Heterogeneous network分类
信息技术与安全科学引用本文复制引用
肖锴,章国安..无线异构网络TCP性能研究与改进[J].计算机应用与软件,2013,30(5):41-43,3.基金项目
国家自然科学基金项目(61071086) （61071086）
江苏省自然科学基金项目(11KJB510021) （11KJB510021）
南通市社会发展计划项目(HS2011015) （HS2011015）
