Relative Output Feedback-Based Dynamic Event-Triggered Secure Consensus of Multi-Agent System With DoS Attack

This paper investigates the consensus problem of linear multi-agent systems (MASs) with relative output feedback under denial-of-service (DoS) attacks.A distributed control protocol based on relative output feedback is proposed, incorporating a dynamic event-triggered sampling strategy. By using the piecewise Lyapunov method, the convergence and divergence rates during attack-free periods and attack periods are obtained, thereby deriving the conditions for the system to achieve consensus, i.e., the attack frequency and duration of the attack model. Theoretical analysis proves that the event-triggering scheme excludes the Zeno behavior in the closed-loop system, and reconstructs the continuous-time relative information required for sampling errors, avoiding the need for continuous communication in triggering. Finally, numerical simulations are conducted to verify the effectiveness of the proposed scheme.