| 论业务量相关性对排队性能的影响 |
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| 引用本文： | 晏冠华,金跃辉,程时端.论业务量相关性对排队性能的影响[J].电子与信息学报,2002,24(1):115-119. |
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| 作者姓名： | 晏冠华 金跃辉 程时端 |
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| 作者单位： | 北京邮电大学程控交换技术与通信网国家重点实验室,北京,100876 |
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| 基金项目： | 诺基亚中国研发中心资助 |
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| 摘 要： | 探讨业务量的相关性对排队系统性能究竟会带来什么样的影响，对于高速网络中流量控制机制和资源分配算法具有非常重要的意义，该文采用了一种独特的方法，来分析业务量的相关性在一定的网络环境下对于排队系统性能的影响，仿真的结果显示，一定时间尺度范围内的长期相关性导致排队性能的恶化，而且这种影响对于增加缓冲区的大小并不十分敏感，而且，业务量序列的边际分布和Hurst参数仍不足以充分决定排队性能的好坏。
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| 关 键 词： | 业务量相关性 自相似业务量 排队性能 Hurst参数 通信网 |
| 收稿时间： | 2000-4-1 |
| 修稿时间： | 2000年4月1日 |
Research on the impact of traffic dependence on queueing performance |
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| Yan Guanhua,Jin Yuehui,Cheng Shiduan.Research on the impact of traffic dependence on queueing performance[J].Journal of Electronics & Information Technology,2002,24(1):115-119. |
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| Authors: | Yan Guanhua Jin Yuehui Cheng Shiduan |
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| Institution: | National Laboratory of Switching Technology and Telecommunication Networks Beijing University of Posts and Telecommunications Beijing 100876 China |
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| Abstract: | The impact of traffic dependence on queueing performance is of great significance to traffic control mechanism and resource allocation algorithm in high-speed networks. This article adopts a unique method to analyze the influence that the traffic dependence brings to the queueing performance under given network conditions. The results of simulation show that long-range dependence during a certain time scale will deteriorate the queueing performance, and that such an effect is insensitive to increasing the buffer size. Also the marginal distribution and Hurst exponent of traffic series are inadequate to determine the queueing performance. |
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| Keywords: | Traffic dependence Self-similar traffic Queueing performance Hurst exponent |
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