Stabilization of Event-triggered Quantized Feedback Control Systems under Denial-of-Service Attacks

In this paper, we study stabilizing problems for networked control systems in the presence of Denial-of-Service (DoS) attacks. DoS attacks may prevent signal transmissions over the network communication channels. The control objective is to save communication resources as many as possible while closed-loop stability is not destroyed under DoS attacks. By constructing a predictor-based periodic event-triggered control framework, we provide a stabilizing condition. The condition is up to the maximum unstable eigenvalue of the dynamic matrix of the plant and the parameters of DoS attacks. Through the event-triggered scheme, the transmission interval is extended, and the communication resources are saved. Simulations are done to confirm the bit rate under event-triggered control is lower than that under periodic sampling control.