Through the analysis of the fluid-based model

a new predictive model is proposed for Internet system.This model is simple

and the way of selecting parameters is relatively easy.It's able to predict the change of congestion window according to the network environment.Based on the theory of Dynamic Matrix Control (DMC)

a new Active Queue Management (AQM) algorithm is proposed

called DMCAQM.The design details

the stability analysis and the principles of choosing parameters are also presented.The results of simulations under different network environments demonstrate that DMCAQM is effective in controlling the queue length to the desired value.In comparison to other AQM algorithms

such as PI

RaQ and REM

DMCAQM have faster response and lower queue fluctuations.In addition

DMCAQM has larger interval while with simple implementation

so it use less resource on the routers.