基于扩充的GIX/M/1/N排队系统的主动队列管理算法性能评价模型

为了评价主动队列管理(AQM Active Queue Management)算法的性能,通过在标准的排队系统GIX/M/1/N中嵌入主动队列管理(AQM)算法的方法,建立了一个扩充的GIX/M/1/N排队系统。利用该扩充的GIX/M/1/N排队系统和Internet业务流量自相似性的特征,提出了一种评价AQM算法在非响应业务流量下的性能的分析方法,并据此评价了TD,RED,GRED和Adaptive RED等4个经典的AQM算法。为了验证该分析方法的合理性,利用NS2进行了一系列的仿真实验。结果表明,该分析方法所得结果与仿真实验所得结果一致,因此该分析方法能用于评价AQM算法的性能。

Extended Queueing System GIx/M/1/N for Evaluating the Performance of AQM Algorithms

In order to evaluate the performance of AQM(Active Queue Management)algorithms,an extended queueing system was developed by embedding an AQM algorithm into the queueing system GIX/M/1/N.Using this model and the self-similar traffic of the Internet,a novel approach was proposed to analyze the performance of AQM algorithms with unresponsive traffic.Four classical AQM algorithms TD,RED,GRED and Adaptive RED were assessed by this approach.A series simulation was performed using NS2 to verify the correctness of ...