Networked Control Systems Event Triggering Control Based on Markov Random Packet Loss Under DoS Attack

In this letter, stability analysis and controller design issues of network control systems under random DoS (denial-of-service) attacks considering Markov packet loss characteristics are studied. First, consider the closed-loop sampling network control system under equal-period sampling mode, assuming that DoS can randomly select attack continuation events under limited energy constraints. Secondly, the packet loss caused by DoS attacks is regarded as a packet loss behavior that obeys the Markov jump law; on this basis, combined with the event triggering mechanism, the networked controlled object is modeled as having a jump mode. The discretized state space equation is used to obtain the stability conditions and controller design method using LMIs technology. Finally, the effectiveness of the proposed controller design method is verified through numerical simulation.