Median-Based Resilient Consensus Over Time-Varying Random Networks

Shang, Yilun

doi:10.1109/tcsii.2021.3093466

Cited by 10 publications

(2 citation statements)

References 26 publications

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“…Please refer to this work for a complete treatment of state-of-theart concerning DoS attacks, spoofing attacks and Byzantine attacks in MASs, where attack model and mechanisms are introduced together with associated resilient consensus control structure. As a final note, when it comes to secure consensus of MASs, Shang (2022) proposed a median-based consensus strategy for resilient consensus control of MAS considering a time-varying directed random network. The proposed approach is superior to Weighted-Mean-Subsequence-Reduced techniques eliminating the need for the number of malicious agents in vicinity of each cooperating agent.…”

Section: Literature Reviewmentioning

confidence: 99%

Secure dynamic event-triggering control for consensus under asynchronous denial of service

Amini,

Mohammadi,

Hou

et al. 2024

Front. Comput. Sci.

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IntroductionThis article proposes a secure implementation for consensus using a dynamic event-triggered control (DETC) scheme for general autonomous multi-agent systems (MAS) under asynchronous (distributed) denial of service (DoS) attacks. The asynchronous DoS attacks can block each communication channel independently in an unknown pattern. Depending on the impact of DoS on the communication topology, the attacks are categorized into (i): connectivity-preserved DoS (CP-DoS), and (ii): connectivity-broken DoS (CB-DoS). In CP-DoS, the operating communication topology remains connected. On the other hand, in CB-DoS the adversary breaks the communication graph into isolated sub-graphs.MethodsThe DETC scheme is employed to reduce the control updates for each agent. To guarantee consensus under both the CP-DoS and CB-DoS, a linear matrix inequality (LMI) based optimization approach is proposed, which simultaneously designs all the unknown DETC parameters as well as the state feedback control gain.ResultsThe proposed optimization method prioritizes the minimum inter-event interval (MIET) between consecutive control updates. The trade-off between relevant features of the MAS, namely the consensus convergence rate, intensity of control updates, and level of resilience to DoS can be handled by the proposed optimization.DiscussionSimulation results quantify the effectiveness of the proposed approach, showcasing its ability to maintain secure consensus in MAS under varying DoS attack scenarios.

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Section: Literature Reviewmentioning

confidence: 99%

Secure dynamic event-triggering control for consensus under asynchronous denial of service

Amini,

Mohammadi,

Hou

et al. 2024

Front. Comput. Sci.

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“…As a product of the deep integration of physical space and cyber space, CPS security research includes the fault tolerance of the physical layer, attack tolerance of the network layer and joint handling [3,4]. There are many methods used to study the security of a CPS from the control point of view, such as fault-tolerant control [5,6], resilient consistency control [7][8][9], fault diagnosis [10] and life prediction [11,12], where fault-tolerant control theory is an important cornerstone for dealing with physical faults in a CPS. In the past decade or so, scholars have carried out extensive research into three aspects of this field: passive fault-tolerant control [13], active fault-tolerant control [14] and active-passive fault-tolerant control [15,16], and the results have been remarkable.…”

Section: Introductionmentioning

confidence: 99%

Integrated Security Control for Nonlinear CPS with Actuator Fault and FDI Attack: An Active Attack-Tolerant Approach

et al. 2023

Actuators

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This paper investigated the co-design problem of less conservative integrated security control and communication for a nonlinear cyber-physical system (CPS) with an actuator fault and false data injection (FDI) attacks. Firstly, considering the efficient utilisation and allocation of computing and communication resources, an integrated framework was proposed from the perspective of active defence against FDI attacks. Secondly, the actuator fault and FDI attacks were augmented as a vector, and a robust observer was proposed to estimate the system state, actuator fault and FDI attacks. Furthermore, based on the obtained estimation results and the location of the FDI attack in the dual-end network, we designed an integrated security control strategy of active attack tolerance and active fault tolerance and, by constructing Lyapunov–Krasovskii functions and using time-delay system theory and the affine Bessel–Legendre inequality, a less conservative co-design method for integrated security control and network communication resource saving was developed. Finally, a simulation experiment of a quadruple tank was carried out to demonstrate the effectiveness of the proposed method.

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Resilient leaderless and leader–follower consensus over random networks through ℓ-hop communication

Shang

2024

European Journal of Control

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Median-Based Resilient Consensus Over Time-Varying Random Networks

Cited by 10 publications

References 26 publications

Secure dynamic event-triggering control for consensus under asynchronous denial of service

Secure dynamic event-triggering control for consensus under asynchronous denial of service

Integrated Security Control for Nonlinear CPS with Actuator Fault and FDI Attack: An Active Attack-Tolerant Approach

Resilient leaderless and leader–follower consensus over random networks through ℓ-hop communication

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