Dynamic Event-Triggered Consensus for Multiagent Systems Under DoS Attacks: A Hybrid System Approach

• Published in: IEEE transactions on systems, man, and cybernetics. Systems Vol. 53; no. 11; pp. 1 - 11
• Main Authors: Liu, Guopin, Park, Ju H., Hua, Changchun, Li, Yafeng
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.11.2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Cybernetics; Denial of service attacks; Denial-of-service (DoS) attacks; Denial-of-service attack; Directed graphs; dynamic event-triggered control (ETC); Electrical engineering; Hybrid systems; Laplace equations; Multi-agent systems; Multiagent systems; multiagent systems (MASs); Robustness
• ISSN: 2168-2216; 2168-2232
• DOI: 10.1109/TSMC.2023.3296638

In this article, we investigate the consensus problem of multiagent systems (MASs) based on the event-triggered control (ETC) method. The communication between agents is transmitted through unreliable networks with denial-of-service (DoS) attacks. By equipping the MAS with estimation capabilities so as to estimate the lost measurements caused by DoS attacks, we present a hybrid dynamic event-triggered strategy (HDETS) for the consensus of MAS subject to unreliable networks. Based on the proposed HDETS, we can preserve the consensus of MASs provided that the DoS attacks satisfy a condition on its frequency and duration . In addition, it can guarantee the Zeno-freeness with a designed strictly positive minimum event-triggered interval as well. Furthermore, we revisit the estimator with the trigger-resetting property, and present a finite time resetting condition for the estimation error, which illustrates the maximal DoS attacks intensity that the MASs can tolerate. Finally, the developed results are verified by a spacecraft formation simulation example.