Title :
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
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;
Conference_Titel :
Intelligent Vehicles Symposium, 2009 IEEE
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-3503-6
Electronic_ISBN :
1931-0587
DOI :
10.1109/IVS.2009.5164382
