适用于异质网络的RED算法的改进与分析

设计、分析和评价主动队列管理(AQM)算法成为近来网络拥塞问题研究的一个热点.随机提前探测(RED)算法作为AQM算法的典型代表,得到了较为广泛的应用.为了提高它的稳定性和公平性相继又开发出了ARED(adaptive RED),GRED(gentle RED),FRED(flow RED)和wRED(weighted RED)等多种改进算法.在分析了RED算法及3种变种算法的基础上,比较了它们的优缺点,给出了适用于不同性质网络连接点处的WRED改进算法,用仿真试验证明了WRED改进算法在处理异质网络拥塞问题方面具有优势.

Amelioration of RED algorithm which fits in heterogeneous networks

Design,analysis and evaluation in active queue management(AQM) algorithm have became the hotspot in the resolve of congestion control.As the typical representation of AQM,random early detection(RED) is applied abroad.The several varied algorithms such as ARED,SRED,FRED and WRED are developed in order to improve its stability and equity.The purpose of this paper is to study RED and its varied formats,compare the advantages and disadvantages among these algorithms and analyze the proposed WRED algorithm which...