Containment control for stochastic multiagent systems under denial-of-service attacks: a security-adaptive multichannel event-triggered control method
Innovative security-adaptive control method shields multiagent systems from denial-of-service attacks, ensuring containment despite disruptions.
This research paper presents a security-adaptive multichannel event-triggered control (SAMETM) method to address the containment control issue for stochastic nonlinear multiagent systems under aperiodic denial-of-service (DoS) attacks. The proposed SAMETM allows simultaneous triggering of the controller-to-actuator, parameter estimator-to-controller, and sensor-to-observer channels, overcoming limitations of existing event-triggered mechanisms. A dynamic differentiable scaling method is introduced to handle non-differentiable terms in the triggered parameter estimator. Switching-like observers are constructed to reduce the impact of multiple channels subjected to DoS attacks. The cooperative design of the observers and controllers ensures the containment errors are semi-globally uniformly ultimately bounded under aperiodic DoS attacks. Simulation results validate the effectiveness of the proposed control strategy in safeguarding multiagent systems against disruptions.