异构网络下一种新的TCP技术  

A Novel TCP Technology in Heterogeneous Network

作　　者：何利[1] 毕元梅[2] 

机构地区：[1]重庆邮电大学计算机学院,重庆400065 [2]重庆大学通信工程学院,重庆400030

出　　处：《通信技术》2010年第8期24-26,29,共4页Communications Technology

基　　金：重庆市科委自然科学基金项目(编号:CSTC2007BB2445;CSTC2007BB2454);重庆市邮电大学青年自然科学基金项目(编号:A2008-34)

摘　　要：由于传统传输控制协议(TCP)拥塞控制主要是为带宽时延乘积较小和信道误码率很低的有线网络环境而设计的,因此很难适用于异构网络下长的往返时延RTT、较大的误码率、以及大带宽等问题。提出了一种新的TCP-selective技术,通过在同一个服务器上使用不同的TCP版本,与实际的链路质量相匹配,根据链路信息来调用与之相适应的TCP来解决单一TCP性能增强方案所不能解决的问题,仿真结果证明这种新的TCP技术是有效可行的。For the traditional congestion control of TCP is designed for wired network with small bandwidth-delay product and low BER. It’s hard to suit the long round trip times （RTTs）, fairly high packet error rates （PER）, and very large bandwidths in heterogeneous network. A novel TCP-selective technology is presented in this paper, which matches the actual link-quality by selecting different TCP versions for the same server. Based on the link information, the suitable TCP is called to solve the problem that the single throughput-enhanced TCP scheme could not solved. The simulation results indicate that this novel TCP technology is feasible and effective.

关 键 词：传输控制协议 异构网络 性能增强 

分 类 号：TN915.04[电子电信—通信与信息系统]