H∞ Control for ICPS with Hybrid-Triggered Mechanism Encountering Stealthy DoS Jamming Attacks

• Published in: Actuators Vol. 11; no. 7; p. 193
• Main Authors: Wang, Mufeng, Geng, Yangyang, Wang, Jingpei, Liu, Ke, Che, Xin, Wei, Qiang
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 16-07-2022
• Subjects: Channel capacity; Channel noise; Control systems design; Controllers; Cyber-physical systems; Feedback control; H-infinity control; hybrid-triggered mechanism (HTM); H∞ control; Industrial Cyber-Physical System (ICPS); Jamming; Random variables; Stealth technology; stealthy DoS jammer; system security; Upgrading; Wireless communications
• ISSN: 2076-0825; 2076-0825
• DOI: 10.3390/act11070193

In recent years, with the upgrading of the attack technology, stealthy DoS jamming attacks have become the primary factor to threaten the security of Industrial Cyber-Physical Systems (ICPS). Considering the complex industrial scenarios of ICPS, which are influenced by a variety of external and internal interference, a H∞ controller designing problem is studied in this paper for an ICPS which deploys a hybrid-triggered mechanism (HTM) in the wireless channel encountering stealthy DoS jamming attacks. By employing a compensation mechanism which is employed in the controller to mitigate the impacts of attacks, external disturbance, limited channel capacity, wireless channel noise, we establish a closed-loop system and prove the closed-loop system is mean square exponentially stable and can achieve the desired H∞ disturbance rejection level theoretically. Finally, simulation examples are used to demonstrate effectiveness of the proposed H∞ controller.