大延时网络中的主动队列管理机制
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国家自然科学基金资助项目(90104001)


AQM Algorithms in Large-delay Networks
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    摘要:

    研究了网络延时对路由器主动队列管理机制的影响,分析了几种典型主动队列管理算法在大延时网络中的性能。在介绍了基于内模补偿的DC-AQM算法的优缺点之后,根据PID控制器延时补偿的Ziegler-Nichols设定方法,提出了ZNDC(Ziegler-Nichols delay compensation)AQM算法并进行了仿真实验验证,实验结果表明算法达到了预期的目标。

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    The study was made to research into the effect of the network delay upon the AQM mechanism and to analyze the properties of several typical AQM algorithms in delay networks, which was put forward recently. With a discussion of the advantage and disadvantage of the DC-AQM, this paper, according to the Ziegler-Nichols approach, in which PID controller may compensate for the time delay, proposed an AQM algorithm using Ziegler-Nichols Method that can reduce the negative impact caused by the large delay. Finally, the performance of AQM with Ziegler-Nichols Delay Compensation is evaluated through NS simulations. Results from the simulation reached the objective expected.

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刘明,窦文华,张鹤颖.大延时网络中的主动队列管理机制[J].国防科技大学学报,2006,28(5):47-51.
LIU Ming, DOU Wenhua, ZHANG Heying. AQM Algorithms in Large-delay Networks[J]. Journal of National University of Defense Technology,2006,28(5):47-51.

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  • 收稿日期:2006-08-01
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  • 在线发布日期: 2013-03-14
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