Secure Consensus Control of Multiagent Systems Under DoS Attacks: A Switching-Scheme-Based Active Defense Method.

IF 9.4 1区 计算机科学 Q1 AUTOMATION & CONTROL SYSTEMS
Dong-Yu Zhang, Xiao-Jian Li
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引用次数: 0

Abstract

This article studies the secure consensus control problem of multiagent systems (MASs) with a nonzero input leader subject to denial-of-service (DoS) attacks. The introduction of backup topologies makes it possible for MASs to actively defend against DoS attacks. Subsequently, a novel active defense method consisting of two types of state observers, an adaptive topology switching mechanism, and switching controllers is proposed, which can ensure the leader-follower bound consensus even if DoS attacks hinder the interaction between agents. Within such a defense framework, the switching mechanism, driven by the predefined performance index and designed monitoring function, can automatically search for a healthy communication graph among backup topologies. Concurrently, the observer-based switching control strategy will be modified to match the corresponding topology, in which the universal observer and controller parameters in different topologies are obtained by solving linear matrix inequalities. It should be highlighted that the developed defense scheme not only removes the limitations of existing results on the duration and frequency of DoS attacks but also ensures the same upper bound of consensus error before and after DoS attacks. Finally, several simulation examples for different systems illustrate the efficiency and superiority of the theoretical results.

DoS 攻击下多代理系统的安全共识控制:基于交换模式的主动防御方法
本文研究的是多代理系统(MAS)的安全共识控制问题,该系统有一个受到拒绝服务(DoS)攻击的非零输入领导者。备份拓扑的引入使 MAS 主动防御 DoS 攻击成为可能。随后,我们提出了一种新型主动防御方法,该方法由两类状态观测器、自适应拓扑切换机制和切换控制器组成,即使 DoS 攻击阻碍了代理之间的交互,也能确保领导者与跟随者之间的约束共识。在这种防御框架内,切换机制在预定义的性能指标和设计的监控功能的驱动下,可以在备份拓扑中自动搜索健康的通信图。与此同时,基于观测器的切换控制策略也将进行修改,以匹配相应的拓扑结构,其中不同拓扑结构中的通用观测器和控制器参数是通过求解线性矩阵不等式获得的。需要强调的是,所开发的防御方案不仅消除了现有结果对 DoS 攻击持续时间和频率的限制,还确保了 DoS 攻击前后共识误差的上限相同。最后,针对不同系统的几个仿真实例说明了理论结果的效率和优越性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
IEEE Transactions on Cybernetics
IEEE Transactions on Cybernetics COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE-COMPUTER SCIENCE, CYBERNETICS
CiteScore
25.40
自引率
11.00%
发文量
1869
期刊介绍: The scope of the IEEE Transactions on Cybernetics includes computational approaches to the field of cybernetics. Specifically, the transactions welcomes papers on communication and control across machines or machine, human, and organizations. The scope includes such areas as computational intelligence, computer vision, neural networks, genetic algorithms, machine learning, fuzzy systems, cognitive systems, decision making, and robotics, to the extent that they contribute to the theme of cybernetics or demonstrate an application of cybernetics principles.
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