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首页> 外文期刊>ISA Transactions >Observer-based H-infinity control for cyber-physical systems encountering DoS jamming attacks: An attack-tolerant approach
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Observer-based H-infinity control for cyber-physical systems encountering DoS jamming attacks: An attack-tolerant approach

机译：基于观察者的H-Infinity对遇到DOS干扰攻击的网络物理系统：攻击方法

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摘要

In this paper, considering two typical attack strategies of a DoS jammer, a new kind of H-infinity control problem is studied for Cyber-Physical Systems (CPSs) with different transmission mechanism encountering DoS jamming attacks. By defining a concept of working subcycle, the concrete attack strategies of a DoS jammer can be generated by choosing different reasonable value combinations in a unified framework according to the DoS jammer's energy efficiency and stealthiness. Then, for two different transmission mechanisms, namely the time-triggered mechanism (TTM) and the event-triggered mechanism (ETM), in which CPSs can employ in its wireless channels, two DoS jammers employ different attack strategies and launch SINR-based DoS jamming attacks to decrease the quality of wireless communication. Considering the case that the CPSs do not know the DoS jammers' attack strategies, the corresponding H-infinity observer-based controllers are designed by using an attack-tolerant mechanism to achieve the desired H-infinity disturbance attenuation level, and the controller design problems are transformed to auxiliary convex optimization problems. Finally, numerical simulations are presented to demonstrate the effectiveness of the proposed H-infinity control methods and the varying of system performance under different interference power chosen by the DoS jammers. (C) 2020 ISA. Published by Elsevier Ltd. All rights reserved.
机译：在本文中，考虑到DOS干扰器的两个典型攻击策略，研究了具有不同传输机制的网络物理系统（CPSS）研究了一种新的H-Infinity控制问题。通过定义工作次循环的概念，可以通过根据DOS干扰的能效和隐身在统一的框架中选择不同合理的价值组合来生成DOS干扰的具体攻击策略。然后，对于两个不同的传输机制，即时间触发机制（TTM）和事件触发机制（ETM），其中CPS可以在其无线信道中采用，两个DOS干扰器采用不同的攻击策略并启动基于SINR的DOS干扰攻击来降低无线通信的质量。考虑到CPSS不知道DOS干扰的攻击策略的情况，通过使用攻击耐受机制来实现所需的H-Infinity扰动衰减水平，以及控制器设计问题，设计了基于H-Infinity的基于观察者的控制器。转变为辅助凸透化问题。最后，提出了数值模拟以证明所提出的H-Infinity控制方法的有效性以及DOS干扰器选择的不同干扰功率下的系统性能的变化。 （c）2020 ISA。 elsevier有限公司出版。保留所有权利。

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