Stability Analysis of Network Control System with Time Delay and Packet Dropout

In Network Control System(NCS),the network-induced delay is usually random,and packet dropout often presents in both the backward and the forward channels.Aiming at this problem,stabilization is studied for NCS with random time delay and asynchronous packet dropout.Uncertain systems matrix is used to avoid the influence of random time delay existed in both S-C and C-A channels,and then NCS is modeled as an asynchronous dynamical system with four rate constrains on events by considering packet dropout.The state feedback exponential stability is proposed for the closed-loop NCS.A state feedback controller that depends on S-C packet dropout rates(packet dropout rates from sensor to controller),and C-A packet dropout rates(packet dropout rates from controller to actuator)is designed.An illustrative example of wireless transmission NCS in the Internet of things is given to demonstrate the effectiveness of the proposed method.