Resilient Secure Synchronization for Complex Networks Under DoS Attacks: A New Switching Sampled-Data Control Protocol
研究拒绝服务攻击下复杂网络的弹性安全同步问题，设计了一种新逻辑处理器和切换采样数据控制协议，通过切换李雅普诺夫函数建立同步准则，并用蔡氏电路验证了方法的可行性。
In this article, the resilient secure synchronization of complex networks (CNs) that are subject to denial-of-service (DoS) attacks is studied. In contrast to existing logic processors, a new processor in which more essential information on DoS attacks, such as the number of sampling instants being attacked and attack moment being detected, can be captured is designed. Based on the benefits of the logic processor, a switching sampled-data (SD) control protocol in which different feedback gains are chosen for different attack cases is proposed. In contrast to existing control schemes, the switching SD control protocol is more flexible. Subsequently, according to different attack cases, a switching Lyapunov-Krasovskii function (LKF) that can effectively fulfil the switching SD control protocol is founded. New resilient secure synchronization criteria that can successfully counteract the effects of DoS attacks are then established for CNs based on the switching SD control protocol and switching LKF. Finally, a complex Chua’s circuit system is used to give evidence of the feasibility and superiority of the proposed method.