An active queue management (AQM) scheme based on modified Smith Predictor

Author

Yin, Xunhe ; Cui, Qingquan ; Meng, Xianglong ; Xiao, Yongkang ; Song, Y.D.

Author_Institution

Sch. of Electron. & Inf. Eng., Beijing Jiaotong Univ., Beijing, China

fYear

2009

fDate

3-5 June 2009

Firstpage

808

Lastpage

813

Abstract

Active queue management (AQM) at routers can effectively control the queue length while keeping high throughput of routers. In this paper, a new AQM algorithm called Hang algorithm based on a modified Smith predictor is proposed. Theoretic analysis and extensive simulation shows that the developed control scheme is effective in dealing with transmission delay and other uncertainties. Comparison with traditional PI control and PI-Smith Predictor control is also conducted via NS2 simulation, and the results confirm the effectiveness of the proposed method in accounting for load disturbance and delay variation.

Keywords

PI control; delays; queueing theory; telecommunication congestion control; telecommunication network management; telecommunication network routing; Hang algorithm; NS2 simulation; PI control; PI-Smith predictor control; active queue management scheme; delay variation; load disturbance; queue length; routers; transmission delay; Algorithm design and analysis; Control systems; Delay effects; Pi control; Predictive models; Proportional control; Robust control; Robust stability; Sliding mode control; Uncertainty; Active Queue Management; Delay variation; Load disturbance; Smith predictor;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Vehicles Symposium, 2009 IEEE

Conference_Location

Xi´an

ISSN

1931-0587

Print_ISBN

978-1-4244-3503-6

Electronic_ISBN

1931-0587

Type

conf

DOI

10.1109/IVS.2009.5164382

Filename

5164382