Observer-Based Event-Triggered Containment Control for MASs Under DoS Attacks.

Area of Science:

• Control Theory
• Networked Systems
• Cybersecurity

Background:

• Linear multiagent systems (MASs) face challenges with unmeasurable states and external disturbances like denial-of-service (DoS) attacks.
• Existing containment control strategies may be conservative or communication-intensive.

Purpose of the Study:

• To develop an observer-based event-triggered containment control strategy for MASs under DoS attacks.
• To address state estimation for unmeasurable states in MASs.
• To enhance MAS resilience to DoS attacks while optimizing communication resources.

Main Methods:

• An improved separation method-based observer is designed for less conservative state estimation.
• A novel observer-based event-triggered containment controller using observer states is proposed.
• Zeno behavior is mitigated by incorporating a positive constant into the event-triggered mechanism.

Main Results:

• The proposed observer effectively estimates MAS states with reduced conservativeness.
• The event-triggered controller ensures MAS containment control under DoS attacks.
• The system demonstrates resilience to DoS attacks and avoids Zeno behavior.

Conclusions:

• The developed observer-based event-triggered containment control strategy is effective for linear MASs under DoS attacks.
• The proposed methods conserve communication resources and enhance system robustness.
• Practical examples validate the effectiveness of the observer and controller design.