Call blocking performance study of M/P/C/K queuing system

Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (15): 125-127.

• 网络、通信与安全 • Previous Articles Next Articles

Call blocking performance study of M/P/C/K queuing system

FU Tao¹，LIN Feng¹，HUANG Sheng-ye¹，YE Wu²，FENG Sui-li²

1.College of Computer and Communication，Hunan University，Changsha 410082，China
2.College of Electronics and Information Engineering，South China University of Technology，Guangzhou 510640，China
E-mail：futaotao@126.com

Received:1900-01-01 Revised:1900-01-01 Online:2007-05-21 Published:2007-05-21
Contact: 符涛

M/P/C/K排队系统呼损性能研究

符涛^１，林峰¹，黄生叶¹，叶梧²，冯穗力^２

1.湖南大学计算机与通信学院，长沙 410082
2.华南理工大学电子与信息工程学院，广州 510640

通讯作者: 符涛

Abstract

Abstract: Recent studies show that network traffic is self-similar.But it is difficult to analyse precisely the queuing performance of self-similar traffic in multi-channel and multi-buffer system.This paper derives the average Call Blocking Probability（CBP） of M/P/C/K model，and compares it with the CBP formula of M/M/C/K model.The experimental results in a system with buffers show that the self-similar traffic results in call blocking performance deterioration.

Key words: self-similar traffic, Pareto distribution, exponential distribution, Call Blocking Probability（CBP）

摘要： 大量的研究表明网络中的业务量呈现自相似特征，但精确分析自相似业务流下的含多个服务装置、多缓存系统的排队性能非常困难。通过仿真得到服务时间是Pareto分布的M/P/C/K模型的平均呼损率（CBP），将它与服务时间是指数分布的传统网络排队模型M/M/C/K的CBP公式比较，结果表明，在有缓存情况下，自相似业务量导致网络的排队呼损性能劣化。

关键词: 自相似业务, Pareto分布, 指数分布, 呼损率

FU Tao¹，LIN Feng¹，HUANG Sheng-ye¹，YE Wu²，FENG Sui-li². Call blocking performance study of M/P/C/K queuing system[J]. Computer Engineering and Applications, 2007, 43(15): 125-127.

符涛^１，林峰¹，黄生叶¹，叶梧²，冯穗力^２. M/P/C/K排队系统呼损性能研究[J]. 计算机工程与应用, 2007, 43(15): 125-127.

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Call blocking performance study of M/P/C/K queuing system

M/P/C/K排队系统呼损性能研究

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