Congestion control algorithm of delay system based on prediction

Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (29): 122-125.

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

Congestion control algorithm of delay system based on prediction

XIAO Ping-ping^1,2,TIAN Yan-tao²,AN Xiao-feng¹

1.School of Information Science and Engineering,Jilin Teachers’ Institute of Technology and Engineering,Changchun 130052,China

2.School of Communication Engineering,Jilin University,Changchun 130022,China

Received:1900-01-01 Revised:1900-01-01 Online:2007-10-11 Published:2007-10-11
Contact: XIAO Ping-ping

基于预测的时滞系统拥塞控制算法

肖萍萍^1,2,田彦涛²,安晓峰¹

1.吉林工程技术师范学院信息工程学院,长春 130052
2.吉林大学通信工程学院,长春 130022

通讯作者: 肖萍萍

Abstract

Abstract: To overcome the disadvantage influence of delay term on the TCP/AQM control system model,the paper proposes a new AQM algorithm called PPI,which combines Smith predictor and Dahlin algorithm.The algorithm can eliminate the influence of delay on the system performance,and reduce the number of the tuning parameters.The result of simulation shows that the presented PPI controller can effectively avoid network congestion,improve the system stability,and have a good performance in respect to robustness to variation of system parameters.

Key words: communication technology, congestion control, delay system, Smith predictor

摘要： 为了克服TCP/AQM控制系统中时滞环节带来的不利影响,将Smith预估器与Dahlin算法相结合,提出了一种新的AQM机制——PPI算法,该算法能消除时滞环节对系统性能的影响,并减少整定参数的数量,通过仿真结果显示出PPI控制器能有效避免网络拥塞,提高系统的稳定性,并在系统变化时具有较好的鲁棒性。

关键词: 通信技术, 拥塞控制, 时滞系统, Smith预估器

XIAO Ping-ping^1,2,TIAN Yan-tao²,AN Xiao-feng¹. Congestion control algorithm of delay system based on prediction[J]. Computer Engineering and Applications, 2007, 43(29): 122-125.

肖萍萍^1,2,田彦涛²,安晓峰¹. 基于预测的时滞系统拥塞控制算法[J]. 计算机工程与应用, 2007, 43(29): 122-125.

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Congestion control algorithm of delay system based on prediction

基于预测的时滞系统拥塞控制算法

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