Event-Triggered Quantized Consensus of Linear Multiagent Systems Under Asynchronous Denial-of-Service Attacks
This article investigates the event-triggered consensus problem for a general linear multiagent system (MAS) under limited feedback bit rates. Moreover, the interagent communication edges of the MAS may be blocked by multiple attackers in an asynchronous manner. Since each agent has to quantize the...
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| Published in: | IEEE transactions on automatic control Vol. 70; no. 1; pp. 697 - 704 |
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| Main Authors: | , |
| Format: | Journal Article |
| Language: | English |
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New York
IEEE
01.01.2025
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
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| ISSN: | 0018-9286, 1558-2523 |
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| Abstract | This article investigates the event-triggered consensus problem for a general linear multiagent system (MAS) under limited feedback bit rates. Moreover, the interagent communication edges of the MAS may be blocked by multiple attackers in an asynchronous manner. Since each agent has to quantize the feedback information into finite-bit symbols before transmissions, an asynchronous attack may break the quantization synchronization among neighboring agents. To mitigate the effects of asynchronous attacks, we design a distributed dynamic encoding-decoding scheme, under which the quantization range and the number of occupied bits of each transmission of every communication edge are independently determined and may vary by DoS attacks. Furthermore, we propose an event-triggered quantized consensus protocol, under which distributed event-triggers determine information transmission over each communication edge. Under the proposed methods, we provide a sufficient average bit rate condition to ensure the asymptotic consensus of the concerned MAS. That bit rate condition depends on the dynamics of agents, the communication topology and denial-of-service (DoS) attacks. The proposed methods still works in MASs with bounded network delay and asynchronous DoS attacks. A numerical example is provided to verify the effectiveness of obtained results. |
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| AbstractList | This article investigates the event-triggered consensus problem for a general linear multiagent system (MAS) under limited feedback bit rates. Moreover, the interagent communication edges of the MAS may be blocked by multiple attackers in an asynchronous manner. Since each agent has to quantize the feedback information into finite-bit symbols before transmissions, an asynchronous attack may break the quantization synchronization among neighboring agents. To mitigate the effects of asynchronous attacks, we design a distributed dynamic encoding-decoding scheme, under which the quantization range and the number of occupied bits of each transmission of every communication edge are independently determined and may vary by DoS attacks. Furthermore, we propose an event-triggered quantized consensus protocol, under which distributed event-triggers determine information transmission over each communication edge. Under the proposed methods, we provide a sufficient average bit rate condition to ensure the asymptotic consensus of the concerned MAS. That bit rate condition depends on the dynamics of agents, the communication topology and denial-of-service (DoS) attacks. The proposed methods still works in MASs with bounded network delay and asynchronous DoS attacks. A numerical example is provided to verify the effectiveness of obtained results. |
| Author | Lin, Na Ling, Qiang |
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| Cites_doi | 10.1109/TCSI.2017.2777504 10.1109/TCNS.2022.3140684 10.1109/TAC.2005.864190 10.1016/j.automatica.2014.10.022 10.1016/j.isatra.2021.06.026 10.1109/TCYB.2020.2977969 10.1109/TAC.2020.2981083 10.1109/TCYB.2019.2896160 10.1109/TAC.2011.2164017 10.1109/TII.2012.2219061 10.1109/TCYB.2020.2979342 10.1109/TAC.2019.2925505 10.1109/TAC.2010.2052384 10.1109/TCYB.2018.2814993 10.1109/JPROC.2006.887293 10.1109/TAC.2014.2350391 10.1109/TAC.2015.2416924 10.1109/TNNLS.2018.2890119 10.1109/TSMC.2018.2876497 |
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| SubjectTerms | Asymptotic methods Bandwidth Bit rate Communication Consensus protocol Delays Denial of service attacks Denial-of-service (DoS) attacks Denial-of-service attack event-triggered control Feedback Linear systems Multi-agent systems Multiagent systems multiagent systems (MASs) Quantization (signal) quantized consensus Synchronism Topology |
| Title | Event-Triggered Quantized Consensus of Linear Multiagent Systems Under Asynchronous Denial-of-Service Attacks |
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