Distributed Resilient Control for Cyber-Physical Systems under Denial-of-Service Attacks

Abstract

This paper proposes a distributed resilient control method for the consensus problem of cyber-physical systems under denial-of-service attacks. Compared with the existing denial-of-service attacks results on multi-agent systems, network communication delays among agents are considered in this paper. To avoid the asynchronous phenomenon caused by communication delays, a distributed resilient controller is designed by introducing a switching mechanism in the controller. A sufficient condition based on duration and frequency of denial-of-service attacks is derived by using the dwell time analysis method. Besides, it can be shown that the developed resilient control method can guarantee the exponentially convergent of the consensus errors. Finally, a simulation example is given to show the validity of the developed approach.