| 基于改进网络模型的大时滞网络拥塞控制算法 |
| |
| 引用本文： | 王晓曦,王永吉,周津慧,王秀利.基于改进网络模型的大时滞网络拥塞控制算法[J].电子学报,2005,33(5):842-846. |
| |
| 作者姓名： | 王晓曦 王永吉 周津慧 王秀利 |
| |
| 作者单位： | 1. 中国科学院软件研究所互联网软件技术实验室,北京 100080;2. 中国科学院计算机科学重点实验室,北京 100080;3. 中国科学院研究生院,北京 100039 |
| |
| 基金项目： | 中国科学院"百人计划",国家自然科学基金,中国科学院国际合作项目,国家高技术研究发展计划(863计划),教育部留学回国人员科研启动基金 |
| |
| 摘 要： | 随着对网络拥塞控制的深入研究,出现了许多有关网络流量的控制理论及网络模型.Misra等人于2000年基于流体流(fluid flow)理论提出的模型被研究人员广为采用.但模型在推导过程中的一些近似却使得模型对网络行为描述不精确.本文对此从理论和实验结果两方面进行了详细分析,并对原模型进行了改进.基于改进的模型,把一种PID(Proportional Integral Differential)及类PID设计方法用于AQM(Active Queue Management)控制器的设计.对比仿真结果表明,该算法具有更好的性能.
|
| 关 键 词： | 网络模型 拥塞控制 主动队列管理 PID控制 大时滞 D稳定域 |
| 文章编号： | 0372-2112(2005)05-0842-05 |
| 收稿时间： | 2004-05-10 |
Congestion Control Algorithm Based on Improved Model in Large-Delay Networks |
| |
| WANG Xiao-xi,WANG Yong-ji,ZHOU Jin-hui,WANG Xiu-li.Congestion Control Algorithm Based on Improved Model in Large-Delay Networks[J].Acta Electronica Sinica,2005,33(5):842-846. |
| |
| Authors: | WANG Xiao-xi WANG Yong-ji ZHOU Jin-hui WANG Xiu-li |
| |
| Affiliation: | 1. Laboratory for Internet Software Technologies,Institute of Software,Chinese Academy of Sciences,Beijing 100080,China;2. Key Laboratory for Computer Science,Chinese Academy of Sciences,Beijing 100080,China;3. Graduate School,Chinese Academy of Sciences,Beijing 100039,China |
| |
| Abstract: | With further research on the network congestion control,many flow control theories and network models have appeared.Based on fluid flow theory,Misra developed a dynamic model of the TCP congestion window in 2000,which has been accepted by many researchers.However,some flaws are inevitable due to its approximation in the model evolvement.This paper gives a detailed analysis of its shortcoming from both the theory and experimental results.Then it presents an improved model.Based on this model,a new PID(Proportional Integral Differential) and PID-like controller design method is applied to AQM controller.Experimental results show that this algorithm outperforms other algorithms. |
| |
| Keywords: | network model congestion control active queue management PID control large delay D stability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子学报》浏览原始摘要信息 |
|
点击此处可从《电子学报》下载全文 |
|
