Distributed fault-tolerant consensus tracking control for multi-agent systems under multiple attacks: An encoding–decoding strategy
This study investigates the distributed fault-tolerant consensus tracking (FCT) problem of multi-agent systems (MASs) subject to actuator faults, and deception and eavesdropping attacks. The problem is addressed through the proposal of a unified framework that integrates decentralized high-gain esti...
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| Published in: | Chaos, solitons and fractals Vol. 200; p. 117117 |
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| Main Authors: | , , , , |
| Format: | Journal Article |
| Language: | English |
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01.11.2025
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| ISSN: | 0960-0779 |
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| Abstract | This study investigates the distributed fault-tolerant consensus tracking (FCT) problem of multi-agent systems (MASs) subject to actuator faults, and deception and eavesdropping attacks. The problem is addressed through the proposal of a unified framework that integrates decentralized high-gain estimator-based (HGE) estimation, encoding–decoding strategy-based (EDS) encryption–decryption, and distributed fault-tolerant consensus tracking control (FCTC). The decentralized HGE simultaneously estimates system states, actuator faults, and deception attacks, while mitigating the impact of deception attacks on the estimation. The EDS encrypts and decrypts the estimated state and/or alleviates communication congestion. The distributed FCT controller, incorporating fault estimation and state encryption, achieves compensation for faults and maintains data confidentiality against eavesdropping attacks. Rigorous analysis establishes sufficient conditions that guarantee leader-following consensus with uniform ultimate boundedness. The communication data size is explicitly analyzed as a performance metric, revealing the intrinsic trade-off between tracking accuracy and communication efficiency. Simulation studies under various faults/attacks scenarios validate the effectiveness of the proposed framework.
•The control protocol combines privacy preservation and fault tolerance.•The estimator, encoding–decoding strategy, and controller are co-designed. |
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| AbstractList | This study investigates the distributed fault-tolerant consensus tracking (FCT) problem of multi-agent systems (MASs) subject to actuator faults, and deception and eavesdropping attacks. The problem is addressed through the proposal of a unified framework that integrates decentralized high-gain estimator-based (HGE) estimation, encoding–decoding strategy-based (EDS) encryption–decryption, and distributed fault-tolerant consensus tracking control (FCTC). The decentralized HGE simultaneously estimates system states, actuator faults, and deception attacks, while mitigating the impact of deception attacks on the estimation. The EDS encrypts and decrypts the estimated state and/or alleviates communication congestion. The distributed FCT controller, incorporating fault estimation and state encryption, achieves compensation for faults and maintains data confidentiality against eavesdropping attacks. Rigorous analysis establishes sufficient conditions that guarantee leader-following consensus with uniform ultimate boundedness. The communication data size is explicitly analyzed as a performance metric, revealing the intrinsic trade-off between tracking accuracy and communication efficiency. Simulation studies under various faults/attacks scenarios validate the effectiveness of the proposed framework.
•The control protocol combines privacy preservation and fault tolerance.•The estimator, encoding–decoding strategy, and controller are co-designed. |
| ArticleNumber | 117117 |
| Author | Wang, Xiaofan Liu, Yiliu Lan, Jianglin Ren, Xiaoqiang Liu, Chun |
| Author_xml | – sequence: 1 givenname: Yiliu orcidid: 0009-0008-6450-6437 surname: Liu fullname: Liu, Yiliu organization: School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, China – sequence: 2 givenname: Chun orcidid: 0000-0002-9294-6519 surname: Liu fullname: Liu, Chun organization: School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, China – sequence: 3 givenname: Xiaoqiang orcidid: 0000-0001-6674-4553 surname: Ren fullname: Ren, Xiaoqiang organization: School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, China – sequence: 4 givenname: Jianglin orcidid: 0000-0001-9057-5649 surname: Lan fullname: Lan, Jianglin organization: James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, United Kingdom – sequence: 5 givenname: Xiaofan orcidid: 0000-0003-0295-2462 surname: Wang fullname: Wang, Xiaofan email: xfwang@shu.edu.cn organization: School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, 200444, China |
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| Keywords | Fault-tolerant consensus tracking control Cyber-attacks Encoding–decoding strategy Actuator faults Multi-agent systems |
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| SubjectTerms | Actuator faults Cyber-attacks Encoding–decoding strategy Fault-tolerant consensus tracking control Multi-agent systems |
| Title | Distributed fault-tolerant consensus tracking control for multi-agent systems under multiple attacks: An encoding–decoding strategy |
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