An active queue management algorithm based on Internal Model PID control with integral separate

In order to overcome the disadvantages of the traditional PI controller, e.g., the long time adjustment and weak robust performance. This paper proposed an internal model PID control with integral separate. The key feature of the present algorithm lies in that it is easy to adjust its parameters and with the use of integral separate method, it not only maintain the integral effect but also decrease the overall capacity. Simulation results show that IMC PD-PID has stronger robust performance and quicker queue adjusting velocity.