BIFURCATIONS AND CHAOS CONTROL IN TCP-RED SYSTEM

作     者：刘芳 

作者机构：School of Electrical EngineeringXi'an Jiaotong UniversityXi'an 710049China Department of Electronics and Information Engineeringthe 2nd Northwest Institute for Ethnic MinoritiesYin chuan 750021China 

出 版 物：《Journal of Pharmaceutical Analysis》 (药物分析学报（英文版）)

年 卷 期：2006年第18卷第1期

页      面：1-5页

学科分类：0710[理学-生物学] 08[工学] 0802[工学-机械工程] 0835[工学-软件工程] 080201[工学-机械制造及其自动化] 

基　　金：ThisworkwassupportedbytheFoundationofScienceandTechnologyResearchProgramatUniversitiesinNingxia 

主　　题：bifurcation chaos feedback control parameter variation congestion control transfer control protocol (TCP) random early detection (RED) 

摘      要：Objective Analyzing the nonlinear dynamics of the TCP-RED congestion control system is of great importance. This study will help investigate the loss of stability in Internet and design a proper method for controlling bifurcation and chaos in such system. Methods Based on bifurcation diagram, the effect of parameter on system performance is discussed. By using the state feedback and parameter variation strategy, a simple real time control method is proposed to modify the existing RED scheme. Results With our control method, the parametric sensitivity of RED mechanism is attenuated. Moreover, a sufficient condition on the robust stability of the system is also derived to adjust the parameters in TCP-RED system. Conclusion The proposed method has the advantages of simple implementation and unnecessary knowledge of the exact system.