使用EHN-WS-HP机制提高移动切换的TCP性能  

Improvement on TCP Performance of Mobile Network by EHN-WS-HP Mechanism

作　　者：李芳[1] 程东年[1] 杨仕荣[1] 

机构地区：[1]国家数字交换系统工程技术研究中心,河南郑州450002

出　　处：《通信技术》2007年第12期155-157,共3页Communications Technology

摘　　要：无线移动网络的发展日新月异。TCP协议是目前互联网上使用的最为广泛的端到端可靠传输协议,但其应用在无线网络上的时候,TCP性能下降明显。文中详细分析并比较了现有几种机制在移动切换时的性能,针对现有机制不能有效地感知频繁切换的弱点,提出EHN-WS-HP机制。EHN-WS-HP机制在现有EHN-HP协议上进行改进,增加了抗摆动机制(Withstand Swing)以处理频繁的切换。The development of wireless mobile network is changing with each passing day. TCP protocol is the most widely used transport protocol on Internet nowadays. However, when used on the wireless mobile network, the performance of original TCP protocol is obvionsly degraded. In this paper, the performances of several existing mechanisms in the process of mobile handover are analyzed and compared in detail. A new scheme, EHN-WS-HP is proposed, in the light that these existing schemes could not perceive the frequent handovers effectively. EHN-WS-HP, modified on EHN-HP scheme and added with withstand-swing mechanism, is suitable for processing the events the frequent handover.

关 键 词：移动网络 移动切换 TCP协议 抗摆动 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]