Title
Real-Time Controller Reconfiguration for Delay-Resilient Cyber-Physical Systems
Abstract
Networks on the cyber-physical systems (CPSs) configure feedback control loops between physical systems in the real world and control software in the cyber world. Malicious behaviors on the networks can increase network delays by exhausting limited network resources and security vulnerabilities to destabilize CPSs, which are entitled the network delay attack. In this paper, we focus on the problem of how to guarantee the stability of CPS under the network delay attack. We propose a real-time controller reconfiguration to ensure the resiliency of the physical systems against the network delay attack. Our controller reconfiguration consists of two algorithms: controller gain tuning and access point (AP) handover, which give a delay tolerance and an attack avoidance, respectively. Depending on the network delays, the computing system adopts one of these two algorithms and mitigates the physical impacts of the network delay attack. We validate that the proposed controller reconfiguration can ensure the resiliency of CPS against the network delay attack by implementing a testbed with wireless networks.
Year
DOI
Venue
2022
10.1109/ACCESS.2022.3208232
IEEE ACCESS
Keywords
DocType
Volume
Delays, Power system stability, Wireless networks, Feedback control, Control systems, Actuators, Control theory, Attack-resilient CPS, controller reconfiguration, cyber-physical systems, flooding attack
Journal
10
ISSN
Citations 
PageRank 
2169-3536
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Sangjun Kim141.40
Sanghoon Lee200.34
Kyung-Joon Park327036.78