Fuzzy global terminal sliding mode congestion control in Internet

For the congestion problem of persecuting Internet, an algorithm is presented by global terminal sliding mode control and fuzzy inference. Uncertain and time-varying delay factors are also considered into the system. A new global terminal sliding surface is designed. The sliding surface can make the system movement possesses global robustness. Moreover, the sliding mode possesses finite convergence time. A novel reaching condition is designed by fuzzy inference. It can adaptively adjust reaching rate, so it can effectively reduce chattering. The controller that meets the reaching condition can make the packets size keep little steady oscillation. Simulation contrasts demonstrate the superiority for this proposed controller.