Security Tracking Control for Discrete-Time Stochastic Delayed Networked Systems With Cyber-Attacks by Dynamic Event-Triggered Approach

The purpose of this paper is to develop a security tracking controller for discrete-time delayed stochastic network control systems (SNCSs) that are vulnerable to stochastic cyber attacks. The presented strategy, called the Dynamic Event-Triggered Communication Approach (DETCA), adapts the volume of data transmitted across the network based on fluctuations in tracking error system, while concurrently maintaining the desired level of the tracking performance. These stochastic cyber attacks encompass deception attacks and denial-of-service (DoS), which may occur during signal transmission over the network. Based on Lyapunov stability theory, a sufficient condition is provided for guaranteeing the asymptotic stability of the tracking error system. The linear matrix inequalities (LMIs) are employed to solve the event-triggering parameters and the tracking controller gain. The efficacy of the proposed theoretical results is lastly demonstrated by a simulation example provided.