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Protocol-based security controller design for networked control systems with DoS attacks compensation mechanism

Author

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  • Li, Changhao
  • Pan, Yingnan
  • Sun, Xingjian

Abstract

Till now, there are many investigations on networked control systems (NCSs) with event-triggering weighted-try-once-discard protocol (ET-WTODP) and attack compensation mechanism, but targeted improvements from the perspective of network resource utilization and control performance still require further exploration. This paper studies the design issue of interval type-2 fuzzy security controller for NCSs with improved ET-WTODP and denial-of-service (DoS) attacks compensation mechanism. Firstly, in order to better schedule the operating states of ET-WTODP, an improved ET-WTODP is designed. In contrast with existing ET-WTODPs, the improved ET-WTODP can be more flexible to schedule the operating states through the change trends of system states, which provides better network resource utilization efficiency. Secondly, an improved DoS attacks compensation mechanism is designed to further reduce the adverse impact of DoS attacks by predicting the output of the controller when attacks occur. Taking ET-WTODP and DoS attacks compensation mechanism into account, sufficient conditions for the stochastic stability of closed-loop system under H∞ performance are obtained based on Lyapunov stability theory. Finally, simulation verification is utilized to testify the effectiveness of the proposed control method.

Suggested Citation

  • Li, Changhao & Pan, Yingnan & Sun, Xingjian, 2026. "Protocol-based security controller design for networked control systems with DoS attacks compensation mechanism," Applied Mathematics and Computation, Elsevier, vol. 517(C).
    • Handle: RePEc:eee:apmaco:v:517:y:2026:i:c:s0096300325006253
    DOI: 10.1016/j.amc.2025.129900
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