Event-based security tracking control for networked control systems against stochastic cyber-attacks

Abstract

This paper investigates the security tracking controller design for discrete-time networked control systems (NCSs) with stochastic cyber-attacks via dynamic event-triggered communication approach (DETCA). The DETCA is introduced to adjust the amount of data transmission in the network based on variation of the tracking error while keeping the tracking performance of the system. Stochastic cyber-attacks such as the denial-of-service and deception attacks are assumed to be encountered during the signal transmitted in the network. A sufficient condition to guarantee the asymptotical stability of the tracking error system is achieved with the Lyapunov stability theory. The tracking controller gain and the event-triggering parameter are co-designed by solving a linear matrix inequality. Finally, two simulation examples are given to verify the availability of theoretical results.