基于速率的网络拥塞控制H_∞反馈控制器设计  

H_∞ Feedback Controller Design for Network Congestion Control Based on Flow Rate

作　　者：洪丽敏[1] 屈百达[1] 

机构地区：[1]江南大学通信与控制工程学院,江苏无锡214122

出　　处：《现代电子技术》2009年第1期155-157,共3页Modern Electronics Technique

摘　　要：为了解决现代网络中常见的网络拥塞控制问题,采用频域设计的方法,把不确定时滞转化为系统已知未建模动态幅值界限的乘性不确定性;根据系统鲁棒稳定性及性能指标的要求,把高速网络基于速率的鲁棒H∞拥塞控制反馈控制器的设计问题转化为工程应用中常见的混合灵敏度优化问题,然后采用解析法求取满足要求的H∞控制器。结果证明采用此方法设计的拥塞控制H∞反馈控制器较为简单,且能有效达到防止拥塞及使网络利用效率最大化的目的。This paper transforms uncertain time- delay system into system＇s unmodeling dynamic breadth finitude＇s multi- plieative uncertainty by frequency domain design method,in order to resolve network congestion control problem in the modern high speed communication networks. According to the robust stabilization and requirement of performance index of system, problems of feedback controller about robust H∞ congestion control of the high speed communication networks which based on flow rate control are converted into the common engineering application problem of mixed- sensitivity, then working out the desirable H∞ controller by the analytic method. The result proves that H∞ feedback controller of congestion control is simple, the goal of preventing congestion and the efficiency of network using maximum by adopting frequency domain design method can be obtained.

关 键 词：网络拥塞 鲁棒H∞ 控制 H∞ 性能指标 状态反馈 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]