Secure State Estimation With Switched Compensation Mechanism Against DoS Attacks

This article is concerned with the secure state estimation problem for cyber-physical systems under intermittent denial-of-service (DoS) attacks. Based on a switching scheme and the cascade observer technique, a novel resilient state observer with a switched compensation mechanism is designed. Moreo...

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Published in:	IEEE transactions on cybernetics Vol. 52; no. 9; pp. 9609 - 9620
Main Authors:	Yan, Jing-Jing, Yang, Guang-Hong
Format:	Journal Article
Language:	English
Published:	United States IEEE 01.09.2022 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:	Cascade observer Compensation Computer crime Convergence Cyber-physical systems cyber-physical systems (CPSs) Denial of service attacks denial-of-service (DoS) attacks Denial-of-service attack Design parameters Errors Observers Resilience secure state estimation Security State estimation State observers switched algorithm switched compensation mechanism Switches Symmetric matrices Wireless communication
ISSN:	2168-2267, 2168-2275, 2168-2275
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Abstract	This article is concerned with the secure state estimation problem for cyber-physical systems under intermittent denial-of-service (DoS) attacks. Based on a switching scheme and the cascade observer technique, a novel resilient state observer with a switched compensation mechanism is designed. Moreover, a quantitative relationship between the resilience against DoS attacks and the design parameters is revealed. Compared with the existing results, where only the boundedness of the estimation error is guaranteed under DoS attacks, the exponential convergence of the estimation error is achieved by employing the proposed observer scheme, such that the estimation performance is improved. More specifically, in the disturbance-free case, it is proven that the state estimation error converges exponentially to 0 despite the existence of DoS attacks. Finally, simulation results are provided to illustrate the effectiveness and merits of the proposed methods.
AbstractList	This article is concerned with the secure state estimation problem for cyber-physical systems under intermittent denial-of-service (DoS) attacks. Based on a switching scheme and the cascade observer technique, a novel resilient state observer with a switched compensation mechanism is designed. Moreover, a quantitative relationship between the resilience against DoS attacks and the design parameters is revealed. Compared with the existing results, where only the boundedness of the estimation error is guaranteed under DoS attacks, the exponential convergence of the estimation error is achieved by employing the proposed observer scheme, such that the estimation performance is improved. More specifically, in the disturbance-free case, it is proven that the state estimation error converges exponentially to 0 despite the existence of DoS attacks. Finally, simulation results are provided to illustrate the effectiveness and merits of the proposed methods. This article is concerned with the secure state estimation problem for cyber-physical systems under intermittent denial-of-service (DoS) attacks. Based on a switching scheme and the cascade observer technique, a novel resilient state observer with a switched compensation mechanism is designed. Moreover, a quantitative relationship between the resilience against DoS attacks and the design parameters is revealed. Compared with the existing results, where only the boundedness of the estimation error is guaranteed under DoS attacks, the exponential convergence of the estimation error is achieved by employing the proposed observer scheme, such that the estimation performance is improved. More specifically, in the disturbance-free case, it is proven that the state estimation error converges exponentially to 0 despite the existence of DoS attacks. Finally, simulation results are provided to illustrate the effectiveness and merits of the proposed methods.This article is concerned with the secure state estimation problem for cyber-physical systems under intermittent denial-of-service (DoS) attacks. Based on a switching scheme and the cascade observer technique, a novel resilient state observer with a switched compensation mechanism is designed. Moreover, a quantitative relationship between the resilience against DoS attacks and the design parameters is revealed. Compared with the existing results, where only the boundedness of the estimation error is guaranteed under DoS attacks, the exponential convergence of the estimation error is achieved by employing the proposed observer scheme, such that the estimation performance is improved. More specifically, in the disturbance-free case, it is proven that the state estimation error converges exponentially to 0 despite the existence of DoS attacks. Finally, simulation results are provided to illustrate the effectiveness and merits of the proposed methods.
Author	Yan, Jing-Jing Yang, Guang-Hong
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BackLink	https://www.ncbi.nlm.nih.gov/pubmed/33729974$$D View this record in MEDLINE/PubMed
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SubjectTerms	Cascade observer Compensation Computer crime Convergence Cyber-physical systems cyber-physical systems (CPSs) Denial of service attacks denial-of-service (DoS) attacks Denial-of-service attack Design parameters Errors Observers Resilience secure state estimation Security State estimation State observers switched algorithm switched compensation mechanism Switches Symmetric matrices Wireless communication
Title	Secure State Estimation With Switched Compensation Mechanism Against DoS Attacks
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