Research of an adaptive PI admission control of Web service

Author

Zhu Zijie ; Gao Xiang ; Zhang Chunhui

Author_Institution

28th Res. Instn., China Electron. Technol. Group Corp., Nanjing, China

fYear

2014

fDate

May 31 2014-June 2 2014

Firstpage

2290

Lastpage

2293

Abstract

A session-based admission time ratio (ATR) feedback control mechanism is introduced in order to the control Internet load pressure. An auto-regressive moving average (CARIMA) system is described as the Internet load pressure model. The Model Reference Adaptive Controller (MRAC) based on feedback control and feedforward compensation is designed to adjust ATR, and feedback controller is used to statue feedback control, also feedforward compensation is composed by error integration compensation. The simulation results of Apache Web server compared with MRAC and PI MRAC control methods show that the PI MRAC control based on system identification online has a better performance on improving the Internet quality of service (QoS) in case of overload.

Keywords

PI control; Web services; autoregressive moving average processes; compensation; control system synthesis; feedback; feedforward; model reference adaptive control systems; pressure control; quality of service; ATR feedback control mechanism; Apache Web server; CARIMA system; Internet load pressure control; Internet load pressure model; MRAC design; QoS; Web service; adaptive PI admission control; conditional autoregressive moving average system; error integration compensation; feedforward compensation; model reference adaptive controller; proportional-integral control; quality of service; session-based admission time ratio; Adaptation models; Admission control; Feedback control; Internet; Load modeling; Mathematical model; ATR; CARIMA; PI MRAC control; admission control; system identify;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference (2014 CCDC), The 26th Chinese

Conference_Location

Changsha

Print_ISBN

978-1-4799-3707-3

Type

conf

DOI

10.1109/CCDC.2014.6852552

Filename

6852552