Distributed adaptive fuzzy fault-tolerant control for multi-agent systems with node faults and denial-of-service attacks.

This paper studies the distributed adaptive fuzzy fault-tolerant control for multi-agent systems (MASs) with node faults and denial-of-service (DoS) attacks. On account of DoS attacks, the fixed network topology is changed into switching topologies, which brings about many difficulties in designing fault-tolerant controllers. In addition, node faults and nonlinearity terms make it more challenging to analyze the stability of MASs with DoS attacks. To cope with the nonlinear terms in MASs, a fuzzy logic systems method is provided. Also, based on the switching mechanism, the average dwell time technique, and the Lyapunov stability theory, a distributed adaptive fuzzy fault-tolerant controller is proposed, and the bounded synchronization of the MASs is achieved. A simulation example is used to validate the efficiency of the proposed approach. • Instead of considering node faults and malicious attacks separately, an adaptive fuzzy FTC strategy is constructed for nonlinear MASs with node faults and DoS attacks. • The fuzzy logic systems (FLSs) approach is utilized to remove the constraint that the nonlinear dynamics of the leader and follower are required to match each other. • Based on the Lyapunov stability analysis, an average dwell time (ADT) condition is provided to guarantee the bounded synchronization of MASs. [ABSTRACT FROM AUTHOR]