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一种改善无线TCP性能的链路层重传方案
引用本文:周颖华,刘东卓,武陵.一种改善无线TCP性能的链路层重传方案[J].计算机应用与软件,2009,26(8):197-198,230.
作者姓名:周颖华  刘东卓  武陵
作者单位:1. 西南大学电子信息工程学院,重庆,400715
2. 安徽财经大学信息工程学院,安徽,蚌埠,233041
摘    要:提出一种提高无线环境中TCP性能的链路层选择性重传的改进方案mARQ.根据每个数据包在链路层被拆分成多个无线帧这一特点,对包中所有帧的重传次数之和进行限定,使其可以根据各帧的需求进行自适应分配.系统仿真表明:与传统方案相比,新设计方案mARQ在高误帧率的环境下以较低的误包率获得了较高的TCP吞吐量,提高了无线环境下TCP的性能.

关 键 词:传输控制协议  拥塞控制  重传  误帧率  吞吐量

A LINK RETRANSMISSION SCHEME FOR IMPROVING WIRELESS TCP PERFORMANCE
Zhou Yinghua,Liu Dongzhuo,Wu Ling.A LINK RETRANSMISSION SCHEME FOR IMPROVING WIRELESS TCP PERFORMANCE[J].Computer Applications and Software,2009,26(8):197-198,230.
Authors:Zhou Yinghua  Liu Dongzhuo  Wu Ling
Affiliation:School of Electronic and Information Engineering;Southwest University;Chongqing 400715;China;School of Information Engineering;Anhui University of Finance and Economics;Bengbu 233041;Anhui;China
Abstract:An improved scheme mARQ of link layer selective retransfer is proposed to improve the TCP performance in wireless environment.This scheme sets a limitation to the sum of retransfer times of all frames in the packet on the basis of the characteristic of the packet,that is,every data packet can be divided into several wireless frames on link layer,so that the retransfer time of each frame can be allocated adaptively according to its requirement.The simulation of the system shows that compared with the traditi...
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