Security-based asynchronous event-triggered control for passivity analysis of semi-Markov jump cyber-physical systems under aperiodic DoS attacks

Abstract

This study explores the problem of asynchronous event-triggered secure control for semi-Markov jump cyber-physical systems (S-MJCPSs) subjected to time-varying delays (TVDs) and aperiodic denial-of-service (DoS) attacks. To counteract Zeno behavior and eliminate the need for continuous monitoring, a memory-based mode-dependent resilient event-triggering scheme (MMRETS) is devised. This scheme not only enhances transmission efficiency but also improves resilience against DoS attacks. Furthermore, an advanced auxiliary function-dependent integral inequality is introduced to effectively handle the differentiation of the triple integral terms in the lyapunov-krasovskii functional (LKF). Leveraging this refined inequality, passivity conditions with reduced conservatism for S-MJCPSs are established, and the corresponding sufficient conditions are formulated as linear matrix inequalities (LMIs). Lastly, the efficacy and superiority of the proposed approach are validated through two numerical case studies: an aircraft engine system and a robot arm model.