摘要
提出了一个典型的模型,该模型考虑到包延时的相关性和串联队列的相关性,这对端到端的抖动有重要影响。针对一个单队列的Poisson流量分布的抖动,给出了一个非常易于计算的公式,然后推广到基于串联队列的标记流的端到端抖动。通过模拟实验可以发现,模型的分析值和模拟值基本吻合,在大流量背景下更为精确,更重要的是对于抖动而言该值是可信的,这样就可以用于网络设计过程中。
This paper proposed a simple model for the delay jitter that was fast enough to be used in networks design algorithms.It took into account the packets delay correlation and also the correlation of tandem queues that had a significant impact on the end-to-end jitter.It presentd simple formulas for the jitter of Poisson traffic in a single queue that could be calculated quickly.It then extended them to the end-to-end jitter of a tagged stream based on a tandem queueing network.It could find analytical values were simulation values are consistent by network simulation,and very accurate for Poisson traffic over a wide range of traffic loads.More importantly they yield conservative values for the jitter so that they can be used in network design procedures.
出处
《计算机应用研究》
CSCD
北大核心
2012年第4期1540-1542,共3页
Application Research of Computers
关键词
抖动模型
流量技术
IP网络规划
jitter model
traffic engineering
IP network planning
