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Cyber-physical Security of Control Systems
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- Author / Creator
- Taheri, Mahsa
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In recent years, Networked Control Systems have become prevalent and replaced hard wired systems. After widespread use of wireless networks and computers in control systems, a significant challenge emerged in this domain: security. As cyber security is insufficient in addressing the consequences of the cyber threats in control systems, cyber-physical security came into attention in which various aspects of the control system such as stability and performance under possible attacks can be investigated. One of the most common and attainable attacks is denial-of-service (DoS). In this thesis, we consider input-output stability and performance of networked control systems under DoS attack. We show that under certain conditions on the DoS attack, input-output stability is preserved at the expense of a
deterioration of the L2 gain. The scheme is resilient enough to present a good perspective of different implementation options and enable the designer to balance the trade-off between
performance and the allowable duration of the attack into consideration. -
- Subjects / Keywords
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- Graduation date
- Spring 2020
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- Type of Item
- Thesis
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- Degree
- Master of Science
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- License
- Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.