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    Area of Science:

    • Control Systems Engineering
    • Network Security
    • Distributed Computing

    Background:

    • Multiagent systems face challenges in achieving consensus due to external disturbances.
    • Denial-of-Service (DoS) attacks disrupt agent-to-agent communication, hindering system coordination.
    • Periodic, energy-limited DoS attacks pose a significant threat to secure consensus.

    Purpose of the Study:

    • To develop an event-triggered secure consensus protocol for multiagent systems.
    • To address the impact of periodic DoS attacks on system stability and communication.
    • To reduce controller update frequency while maintaining system security.

    Main Methods:

    • An event-based protocol with distinct leader-follower and follower-follower measurements was designed.
    • Lyapunov functions and inductive approaches were used to analyze system stability.
    • Positive lower bounds for event intervals were calculated to prevent Zeno behavior.

    Main Results:

    • Sufficient conditions for achieving secure consensus under DoS attacks were derived.
    • The event-triggered protocol effectively schedules agent communications, reducing update frequency.
    • The proposed method successfully eliminates Zeno behavior.

    Conclusions:

    • The developed event-triggered protocol ensures secure consensus in multiagent systems against periodic DoS attacks.
    • The protocol enhances communication efficiency by reducing controller updates.
    • Theoretical analysis and simulations confirm the effectiveness of the proposed approach.