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In this article, an optimal security control scheme is investigated for cyber-physical systems (CPSs) with multiple transmission channels under hybrid attacks. An optimal jamming attack strategy aimed at maximizing the jammer’s utility in different transmission channels is derived of the CPSs under which the probability of successful packet transmission is constructed by the signal-interference-plus-noise ratio (SINR). False data injection attackers can capture transmission signals and inject garbage signals to affect system control performance. These security factors inevitably increases control difficulty and motivate to design security controller in this article. Then, an optimal security control strategy is designed that minimizing user energy consumption while preserving satisfactory system performance. Besides, asymptotic stability conditions are provided for the CPSs under the hybrid attacks with the proposed optimal security controller. Finally, the effectiveness of the proposed approach is shown through a practical example.
Geng et al. (Thu,) studied this question.