Non-fragile control for consensus of nonlinear multiagent systems under periodic denial of service attacks

This paper focuses on the issues of non-fragile event-triggered consensus problem for nonlinear multiagent systems (MASs) with external disturbance subjected to randomly occurring packet losses and periodic Denial of Service (DoS) attacks. Under connected communication topology, each agent exchanges information with its neighbors. In the presence of packet losses and DoS attacks, an event-triggered mechanism is designed to decide when to communicate the current sampled-data. Randomness is solved by using Bernoulli distribution in a stochastic way and the external disturbance is handled by using H_∞ performance. A sufficient condition is derived in terms of linear matrix inequalities (LMIs) by introducing time-varying Lyapunov–Krasovskii Functional (LKF), ensuring mean square consensus for the resulting closed-loop systems. Finally, to show the effectiveness and applicability of proposed control scheme, two numerical simulations are presented.