Active Queue Management: Comparison of Sliding Mode Controller and Linear Quadratic Regulator
نویسندگان
چکیده
Active Queue Management (AQM) takes a trade-off between link utilization and delay experienced by data packets. From control point of view, it is rational to regard AQM as a typical regulation system. In this paper, two types of controllers, i.e. Sliding Mode Variable Structure (SMVS) controller and optimal Linear Quadratic Regulator (LQR) are designed for AQM. Simulation results conform the robust performance of SMVS controller against the disturbance. At the same time, a complete comparison between SMVS and LQR controllers is made. The conclusion is that both transient and steady state performance of SMVS controller is better than that of LQR one. Key-Words: Active queue management, congestion control, robust control, sliding mode control, linear quadratic regulator.
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