| M/P/C/K排队系统呼损性能研究 |
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| 引用本文： | 符涛,林峰,黄生叶,叶梧,冯穗力.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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| 作者姓名： | 符涛 林峰 黄生叶 叶梧 冯穗力 |
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| 作者单位： | 湖南大学,计算机与通信学院,长沙,410082;华南理工大学,电子与信息工程学院,广州,510640 |
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| 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。
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| 关 键 词： | 自相似业务 Pareto分布 指数分布 呼损率 |
| 文章编号： | 1002-8331（2007）15-0125-03 |
| 修稿时间： | 2006-09 |
Call blocking performance study of M/P/C/K queuing system |
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| FU Tao,LIN Feng,HUANG Sheng-ye,YE Wu,FENG Sui-li.Call blocking performance study of M/P/C/K queuing system[J].Computer Engineering and Applications,2007,43(15):125-127. |
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| Authors: | FU Tao LIN Feng HUANG Sheng-ye YE Wu FENG Sui-li |
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| Affiliation: | 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 |
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| 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. |
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| Keywords: | self-similar traffic Pareto distribution exponential distribution Call Blocking Probability(CBP) |
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