摘要
异构无线网络中传统TCP协议性能大幅度下降。在不增加开销的情况下,利用三维相位图划分RTT所处空间区域来区分丢包原因,提出了一种新的TCP拥塞控制机制(TCP-BRP)。仿真结果表明,TCP-BRP增强了对拥塞和随机差错的区分能力,满足公平性要求,有效地提高了在异构无线网络环境下TCP的性能。
The application of TCP over heterogeneous wireless networks is challenged with degressive performance. Without increasing costs, using three-dimensional phase-plot of round-trip-time （RTT） to divide space into several regions in which to distinguish the causation of packets loss, a new TCP congestion control mechanism, TCP based on round-trip-time phase- plot （TCP-BRP） was proposed. Simulation results show that TCP-BRP enhances the distinction ability of congestion and random errors, meets the requirements of fairness, and effectively improves the performance of TCP in heterogeneous wire- less network environment.
出处
《重庆邮电大学学报（自然科学版）》
北大核心
2009年第5期638-641,共4页
Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
基金
国际科技合作项目计划(2008DFA12110)
新世纪优秀人才支持计划(NCET-06-0778)
重庆市自然科学基金项目(CSTC
2007BB2390
CSTC
2008BB2413)
重庆市教育委员会科学技术研究项目(KJ070501
KJ080522)
