Secure Leader-Follower Consensus for Multi-agent Systems under Asynchronous DoS Attacks via State Estimation Method

This paper investigates the secure consensus problem of multi-agent systems (MASs) under Denial-of-Service (DoS) attacks, in which the attacks is asynchronously launched in communication and control channels. For these two channels, three categories of possible scenarios for asynchronous attacks are introduced in the paper. Considering the complexity and potential infeasibility of directly obtaining the system state, a state estimator is designed to estimate system state using local output information. Furthermore, a leader-follower consensus criterion is presented by developing distributed controller based on estimated state. Finally, a simulation example is given to illustrate the validity of the obtained secure consensus criterion.