Stability Analysis for Cyber-Physical Systems Under Denial-of-Service Attacks

This article investigates the stability analysis problem for cyber-physical systems (CPSs) under denial-of-service (DoS) attacks. Based on the real-time data characterizing the suffered DoS attack, a necessary and sufficient condition for the closed-loop stability in the presence of DoS attacks is p...

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Bibliographic Details
Published in:IEEE transactions on cybernetics 2021-11, Vol.51 (11), p.5304-5313
Main Authors: Lu, An-Yang, Yang, Guang-Hong
Format: Article
Language:English
Subjects:
Asymptotic stability
Control systems
Cyber-physical systems
Cyber-physical systems (CPSs)
Cybersecurity
Denial of service attacks
denial-of-service (DoS) attack
Denial-of-service attack
Monitoring
multiple transmission channels
Power system stability
Stability analysis
Stability criteria
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Summary:This article investigates the stability analysis problem for cyber-physical systems (CPSs) under denial-of-service (DoS) attacks. Based on the real-time data characterizing the suffered DoS attack, a necessary and sufficient condition for the closed-loop stability in the presence of DoS attacks is provided. Besides, by transforming stability analysis the system under DoS into stability analysis of an auxiliary system, novel sufficient conditions for the closed-loop stability, which can be verified more easily than the necessary and sufficient condition, are provided. Based on the proposed conditions, an online stability monitoring strategy, which triggers an alarm if the closed-loop stability is not guaranteed, is proposed. Finally, two examples are given to illustrate the effectiveness of the proposed strategy.
ISSN:2168-2267
2168-2275
DOI:10.1109/TCYB.2020.2986008