Secure synchronization against link attacks in complex networks with event-triggered coupling

Abstract

This paper concentrates on the secure synchronization problem against link attacks in complex networks with event-triggered coupling. The link attacks for each link are independent, which means that there are multiple attack patterns for coupling communication topology. Then, the relevant model of link attacks with multiple patterns is constructed to analyze the effect on synchronization error system. Furthermore, to reduce communication burden and save coupling resources, a sampled-data-based event-triggered coupling mechanism is established. In this situation, the triggering condition is supervised only at discrete sampling instants. By employing Lyapunov theory and some inequality techniques, sufficient conditions are given to guarantee the synchronization against link attacks with multiple patterns. At last, a simulation example on Chua’s circuit network is provided to demonstrate the effectiveness of the proposed results.