Hybrid event-based anti-bump finite-time H∞ control for cyber-physical switched systems under denial-of-service attacks

This paper aims to investigate the hybrid event-based anti-bump finite-time H ∞ control method for cyber-physical switched systems under Denial of Service (DoS) attacks. By gaining insights into the characteristics of DoS attacks, a novel hybrid event-triggered scheme (HETS) is proposed. This scheme effectively reduces network transmission load and accurately captures the network service denial behavior caused by attack interference. In the context of complex network environments with multiple switching characteristics, this study addresses the challenges posed by HETS, transmission delays, and DoS attacks on the input signals of controllers. To tackle these challenges, we utilize an asynchronous switching strategy, along with bumpless transfer constraints and a zero-order hold mechanism. The objective is to design sustainable input asynchronous control signals while ensuring that the control scheme exhibits bumpless transfer (BT) characteristics and achieves H ∞ performance. By employing the asynchronous switching strategy and the admissible edge-dependent average dwell time method (AED-ADT), a dual-mode Lyapunov function is devised to establish finite-time stability criteria and provide a design approach for constructing anti-bump H ∞ controllers. Finally, two examples illustrate the applicability and effectiveness of the method.