Resilient Consensus of Multiagent Systems Against Denial-of-Service Attacks

• Published in: IEEE transactions on systems, man, and cybernetics. Systems Vol. 52; no. 4; pp. 2664 - 2675
• Main Authors: Zuo, Zhiqiang, Cao, Xiong, Wang, Yijing, Zhang, Wentao
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.04.2022; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Communication networks; Controllers; Denial of service attacks; Denial-of-Service (DoS) attacks; Denial-of-service attack; Jamming; Laplace equations; Multiagent systems; multiagent systems (MASs); Observers; resilient consensus; state reconstruction; Symmetric matrices; Topology
• ISSN: 2168-2216; 2168-2232
• DOI: 10.1109/TSMC.2021.3051730

This article studies the consensus problem of multiagent systems (MASs) subject to Denial-of-Service (DoS) attacks from the perspective of control. The considered DoS attacks blocking the information exchange in the group of agents pose limitations on the frequency and the duration of them. A distributed observer-based controller is proposed to reconstruct the states of the agents. We prove that MASs under DoS attacks can still achieve consensus by the proposed controller. The scenario where DoS attacks simultaneously jam both the communication networks associated with the controller and the observer is also addressed, and a sufficient condition is obtained to maintain the consensus performance of MASs. Finally, numerical simulations are provided to illustrate the theoretical results.