基于自适应反步滑模控制的主动队列管理

针对TCP网络的拥塞控制问题，基于自适应反步滑模控制提出了一种主动队列管理算法。由于系统的不确定在实际工程中很难或根本无法事先获得，设计一个自适应律来实时适应系统不确定的值，从而消除系统不确定所带来的影响。利用此自适应律，提出一个自适应反步滑模控制器，使得系统具有较好的暂态性能和鲁棒性能。仿真结果表明，该方法对TCP网络的复杂变化具有较好的鲁棒性和较快的系统响应。

Active Queue Management based on Adaptive Backstepping Sliding Mode Control

For the problem of congestion control in TCP networks,an active queue management algorithm is proposed based on the adaptive backstepping sliding mode control.Since the lumped uncertainties of the network systems is difficult to obtain in advance in practical applications,an adaptive law is proposed to compensate the effects of the system uncertainties.Using the proposed adaptive law,an adaptive backstepping sliding mode controller is proposed to make systems possesses the advantages of good transient control and robust performance.Simulation results verifies that the proposed algorithm has good robustness and fast system response for complicated changes in TCP networks.