基于线性化滑模控制的主动队列管理算法

Active Queue Management Algorithm Based on Linearization Sliding Mode Control

针对TCP网络中的拥塞现象,论文提出了一种基于线性化滑模控制的主动队列管理算法,应用线性化的方法处理系统模型的非线性,并设计滑模控制器来补偿系统不确定性对控制的影响,通过Simulink仿真,证明了所设计控制器能够克服系统不确定性,迅速使队列长度稳定在期望值附近,有效避免拥塞现象的发生。

For the phenomenon of congestion in the TCP network, a kind of active queue management algorithm is presented on the base of linearization sliding mode control theory. The nonlinear system is transformed into linear by using linearization method,then sliding mode controller is designed to compensate the influence of uncertainty on the control system. The simulation results of simulink proved that the controller can overcome the system uncertainty and make the queue length stabling near the expectations quickly, avoid the phenomenon of congestion effectively.