Xunhe Yin, Qingquan Cui, Xianglong Meng, Yongkang Xiao, Y. Song
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An active queue management (AQM) scheme based on modified Smith Predictor
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.
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