Analytical design of PI controller for AQM with robustness adjustability

作     者：Danying GU Jiwen YANG Weidong ZHANG 

作者机构：Shanghai Jiao Tong UniversityShanghai 200240China 

出 版 物：《Frontiers of Electrical and Electronic Engineering in China》 (中国电气与电子工程前沿（英文版）)

年 卷 期：2008年第3卷第2期

页      面：240-245页

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：supported by the Specialized Research Fund for the Doctoral Program of Higher Education (No.20070248010) NCET (No.04-0383) Australia-China Special Fund for Scientific&Technological Cooperation (No.071107037) 

主　　题：active queue management(AQM) proportional integral(PI)controller transmission control pro-tocol(TCP) time delay robustness 

摘      要：Based on a linearized TCP/AQM model,a new proportional integral(PI)controller design approach is *** analytical approach applies H_(∞) optimization and internal model control(IMC)theory to design active queue management(AQM)routers that support transmission control protocol(TCP)*** most important feature of the proposed scheme lies in that it can be explicitly tuned with a single parameter for the trade-off between performance and stability of the AQM control *** is thus flexible and easy to use in *** proposed method and the designed PI controller are verified and compared with other existing AQM schemes using ns-2 *** results show the advantages of the new PI controller design approach for AQM routers supporting TCP flows.