Event-Triggered Guaranteed Cost Secure Consensus Control of Multiagent Systems Under DoS Attacks Over Multiple Communication Channels

This article investigates the distributed event-triggered guaranteed cost secure consensus for linear multiagent systems (MASs) subject to denial-of-service (DoS) attacks over multiple communication channels. First, a classification strategy is proposed, which categorized the multichannels' DoS attacks into three attack modes according to the attack's strength. Second, an event-triggered controller is constructed for reaching the secure consensus, which can simultaneously reduce computation/transmission resources and attenuate the impact of attack. The corresponding feedback gains are designed for each attack mode to reduce conservatism in control and analysis. Furthermore, to explore the tradeoff between secure consensus regulation performance and control energy consumption, an event-triggered guaranteed cost consensus criterion is established by exploiting the joint effect of state errors among neighboring agents and control inputs. Particularly, the determined upper bound of the cost function depends merely on the initial conditions of the agents. Finally, simulation results are given to validate the proposed control scheme.