Cooperative Output-Feedback Secure Control of Distributed Linear Cyber-Physical Systems Resist Intermittent DoS Attacks

• Published in: IEEE transactions on cybernetics Vol. 51; no. 10; pp. 4924 - 4933
• Main Authors: Wang, Xin, Park, Ju H., Liu, Heng, Zhang, Xian
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.10.2021; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Communication networks; Control methods; Control systems; Cooperative control; Cooperative secure control; Coordination; Cyber-physical systems; Denial of service attacks; distributed cyber-physical systems (CPSs); Dynamic stability; Error analysis; intermittent denial-of-service (DoS) attacks; Liapunov functions; Network topologies; Network topology; observer-based output-feedback control; Output feedback; Protocols; Stability analysis; Subsystems; Switches; Switching; Topology; Tracking errors; unreliable switching topology; Vehicle dynamics
• ISSN: 2168-2267; 2168-2275; 2168-2275
• DOI: 10.1109/TCYB.2020.3034374

This article studies a cooperative output-feedback secure control problem for distributed cyber-physical systems over an unreliable communication interaction, which is to achieve coordination tracking in the presence of intermittent denial-of-service (DoS) attacks. Under the switching communication network environment, first, a distributed secure control method for each subsystem is proposed via neighborhood information, which includes the local state estimator and cooperative resilient controller. Second, based on the topology-dependent Lyapunov function approach, the design conditions of secure control protocol are derived such that cooperative tracking errors are uniformly ultimately bounded. Interestingly, by exploiting the topology-allocation-dependent average dwell-time (TADADT) technique, the stability analysis of closed-loop error dynamics is presented, and the proposed coordination design conditions can relax time constraints on interaction topology switching. Finally, two numerical examples are presented to demonstrate the effectiveness of the theoretical results.