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<p>This paper addresses the problem of event-triggered secure control for networked positive systems operating under hybrid network attacks. It is assumed that the communication network is subject to both random deception attacks and denial-of-service attacks. To conserve limited network bandwidth, a memory-based dynamic event-triggering scheme (MDETS) is proposed for scheduling data transmissions. Unlike conventional dynamic event-triggering strategies, the proposed mechanism integrates historical triggering information into the threshold condition enabling more flexible adjustment of the triggering threshold. This effectively reduces redundant data transmissions and enhances network resource utilization efficiency. Based on the MDETS, an event-triggered model for networked positive systems under hybrid attacks is established. Moreover, sufficient conditions ensuring the positivity and stability of the closed-loop system are derived, along with a corresponding output feedback controller design. Finally, two examples are provided to demonstrate the effectiveness and feasibility of the proposed approach in enhancing system security, reducing communication load, and improving control performance.</p>

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Memory-Based Dynamic Event-Triggered Secure Control for Networked Positive Systems Under Hybrid Attacks

  • 期刊论文

  • 发表日期：

    2026年6月2日

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  • Shunli Zhao,
  • Yatao Peng,
  • Chong Yang,
  • Hang Zhang

摘要

This paper addresses the problem of event-triggered secure control for networked positive systems operating under hybrid network attacks. It is assumed that the communication network is subject to both random deception attacks and denial-of-service attacks. To conserve limited network bandwidth, a memory-based dynamic event-triggering scheme (MDETS) is proposed for scheduling data transmissions. Unlike conventional dynamic event-triggering strategies, the proposed mechanism integrates historical triggering information into the threshold condition enabling more flexible adjustment of the triggering threshold. This effectively reduces redundant data transmissions and enhances network resource utilization efficiency. Based on the MDETS, an event-triggered model for networked positive systems under hybrid attacks is established. Moreover, sufficient conditions ensuring the positivity and stability of the closed-loop system are derived, along with a corresponding output feedback controller design. Finally, two examples are provided to demonstrate the effectiveness and feasibility of the proposed approach in enhancing system security, reducing communication load, and improving control performance.