Web QoS Control Using Fuzzy Adaptive PI Controller

摘要：

Abstract-This paper researches on QoS (Quality of Service) control problems for web servers. A Fuzzy Adaptive PI Control system is proposed in this paper. Via a basic PI controller, the system can dynamically adjust the ratio of 73-76accepting time in a control period, in order to turn down requests when the server is overloaded. Considering that in a real Internet environment, the network and server load are continually varying in an uncertain range, we use a fuzzy control approach to tune the PI parameters adaptively. Details of the fuzzy control approach are elaborated in this paper. Simulation results demonstrate that in a stable server load environment, the Fuzzy Adaptive PI Control system works as well as the basic PI controller, but it acts much more stably and rapidly dealing with fluctuating loads.

关键词： Web Server QoS PI Controller Fuzzy Adaptive

作者: Fuquan Tian Wenbo Xu Jun Sun

作者单位: School of Information Engineering Jiangnan University Wuxi, P.R.China

会议类型: 国际会议

会议名称: 电子商务、工程及科学领域的分布计算和应用国际会议(DCABES 2010)

会议地点: 香港

会议语种:英文

页码: 73-76

在线出版日期: 2010-08-10（万方平台首次上网日期，不代表论文的发表时间）