Consensus of Heterogeneous Linear Multiagent Systems Subject to Aperiodic Sampled-Data and DoS Attack.

Area of Science:

• Control Systems Engineering
• Networked Systems
• Cybersecurity

Background:

• Multiagent systems (MASs) are crucial for distributed tasks.
• Aperiodic sampling and denial-of-service (DoS) attacks pose significant challenges to system stability and performance.
• Achieving robust consensus in heterogeneous MASs under these conditions is complex.

Purpose of the Study:

• To investigate the robust output consensus problem for heterogeneous linear MASs.
• To develop a novel distributed output-feedback control strategy to overcome aperiodic sampling and DoS attacks.
• To ensure secure consensus achievement in MASs.

Main Methods:

• Modeling the closed-loop system as a discrete-time switched stochastic delay system.
• Assuming nonuniform sampling and bounded consecutive attack durations.
• Deriving sufficient conditions for the solvability of the secure consensus problem.

Main Results:

• A novel distributed output-feedback control strategy was proposed.
• Sufficient conditions for achieving robust output consensus were established.
• A constructive design procedure for the controller was presented.

Conclusions:

• The proposed control strategy effectively achieves robust output consensus in heterogeneous linear MASs.
• The findings provide a viable solution for secure consensus under aperiodic sampling and DoS attacks.
• Simulation results validate the controller's effectiveness.