Security Control of Multi-agent Systems Under
Cooperative Attacks With Flexible Switching
Mechanism

Xuemei Zhang

doi:https://doi.org/10.14445/22315373/IJMTT-V67I2P511

International Journal of Mathematics Trends and Technology

Research Article | Open Access | Download PDF

Volume 67 | Issue 2 | Year 2021 | Article Id. IJMTT-V67I2P511 | DOI : https://doi.org/10.14445/22315373/IJMTT-V67I2P511

Security Control of Multi-agent Systems Under Cooperative Attacks With Flexible Switching Mechanism

Xuemei Zhang

Citation :

Xuemei Zhang, "Security Control of Multi-agent Systems Under Cooperative Attacks With Flexible Switching Mechanism," International Journal of Mathematics Trends and Technology (IJMTT), vol. 67, no. 2, pp. 74-82, 2021. Crossref, https://doi.org/10.14445/22315373/IJMTT-V67I2P511

Abstract

This paper investigates the security control problem of nonlinear leader-following multi-agent systems based on distributed adaptive state observers in the purpose of finding some sensors that are attacked by anattacker. At first, a flexible switching mechanism is proposed in designing the observers such that the security problem is effectively solved with the consideration of sensor attacks, process disturbances and output disturbances in the systems’ dynamics. Then, the tracking error control strategy is constructed based on the agents’ dynamics and state estimation. Moreover, both the state estimation and the attack tolerance control performance can be guaranteed regardless of multiple attacks and other external disturbances. What’s more, the unknown feedback matrix of the distributed control protocol and the unknown gain matrix of the proposed observer are determined by solving only two linear matrix inequalities (LMIs). Finally, a simulation example is given to illustrate the effectiveness of the theoretical analysis.

Keywords

multi-agent systems (MASs), security control, sensor attacks, distributed controller, switching mechanism

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