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Secure cooperative output regulation for linear parameter-varying systems under dos attacks: a resilient observer approach

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Science China(Information Sciences) 2023年第9期66卷 35-49页

作者： Chengcheng FU Hao ZHANG Chao HUANG Zhuping WANG Huaicheng YAN School of Electronic and Information Engineering Tongji University School of Information Science and Engineering East China University of Science and Technology

This paper investigates the cooperative output regulation problem of heterogeneous linear parameter-varying multi-agent systems under denial-of-service(dos) attacks. The matrix and state of the exosystem are taken to be unknown to the followers. Moreover, with the assumption that only a directed spanning tree exists in the communication topology, a resilient observer is proposed to exponentially estimate the global information, which can also be effective under dos attacks with a certain intensity. Afterward,to avoid using the exact value of the exosystem matrix, a distributed online algorithm is proposed, through which the linear parameter-varying output regulation equation is asymptotically solved. Based on the resilient observer and the solution of the output regulation equation, a distributed regulator is proposed to achieve asymptotic cooperative output regulation for all agents. Some numerical simulations are conducted to verify the effectiveness of the proposed observer, algorithm, and controller.

关键词： cooperative output regulation heterogeneous multi-agent systems dos attacks linear parameter-varying systems

Observer-based event-triggered control for linear MASs under a directed graph and dos attacks

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Journal of Control and Decision 2022年第3期9卷 384-396页

作者： Shuo-Qiu Zhang Wei-Wei Che Chao Deng College of the Institute of Complexity Science Shandong Key Laboratory of Industrial Control TechnologyQingdao UniversityQingdaoPeople’s Republic of China Institute of Advanced Technology Nanjing University of Posts and TelecommunicationsNanjingPeople’s Republic of China

In this paper,we investigate the observer-based event-triggered consensus problem for linear multi-agent systems(MASs)under a directed graph and denial-of-service(dos)attacks.A type of dos attacks launched by malicious attackers at irregular intervals is considered,which can cause communication channel disruption.A novel event-triggered secure control scheme based on a closed-loop observer is proposed to determine the scheduling of the controller update,and a separation method with less conservativeness is employed to design the controller and observer ***,the frequency and duration of dos attacks that can be tolerated are analysed for the observer-based secure consensus *** addition,a strictly positive minimal event-triggered time interval for each agent is designed with the help of the proposed eventtriggered condition to eliminate the Zeno ***,a numerical simulation is given to verify the theoretical analysis.

关键词： Directed graph dos attacks event-triggered mechanism consensus control multi-agent systems

Resilient Control Strategy of Cyber-Physical System under dos attacks 36

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Resilient Control Strategy of Cyber-Physical System under Do...

第36届中国控制会议

作者： Shan Liu Bugong Xu Shanbin Li Yonggui Liu The College of Automatic Science and Engineering South China University of Technology

ISBN: (纸本)9781538629185

This paper is concerned with the problem of resilient control strategy for cyber-physical system(CPS) under denial-of-service(dos) *** combined design between cyber layer and physical layer of CPS is *** the one hand,the cyber mixed strategy is designed by using the physical performance H index;on the other hand,the controller of physical system is designed by optimal cyber mixed *** design method considers not only the robust performance of physical system,but also the security performance of network *** the end,an example is used to illustrate the effectiveness of the method we proposed.

关键词： Cyber-physical system Resilient control dos attacks Mixed strategy

A Router Based Packet Filtering Scheme for Defending Against dos attacks

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China Communications 2014年第10期11卷 136-146页

作者： LU Ning SU Sen JING Maohua HAN Jian School of Computer and Communication Engineering Northeastern University at Qinhuangdao State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications.

The filter-based reactive packet filtering is a key technology in attack traffic filtering for defending against the Denial-of- Service （dos） attacks. Two kinds of relevant schemes have been proposed as victim- end filtering and source-end filtering. The first scheme prevents attack traffic from reaching the victim, but causes the huge loss of legitimate flows due to the scarce filters （termed as collateral damages）; the other extreme scheme can obtain the sufficient filters, but severely degrades the network transmission performance due to the abused filtering routers. In this paper, we propose a router based packet filtering scheme, which provides relatively more filters while reducing the quantity of filtering touters. We implement this scheme on the emulated dos scenarios based on the synthetic and real-world Internet topologies. Our evaluation results show that compared to the previous work, our scheme just uses 20% of its filtering routers, but only increasing less than 15 percent of its collateral damage.

关键词： Internet security dos attacks filter-based reactive packet filtering

Event-triggered secure control for networked positive systems under dos attacks

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Event-triggered secure control for networked positive system...

第40届中国控制会议

作者： Jiao Liu Le Kang Xiangna Kong Hongchao Li School of Artificial Intelligence Hebei University of Technology

This paper aims to address the problem of secure control for a class of networked positive systems subject to denialof-service（dos） attacks under event-triggered scheme. dos attacks involve with limited frequency and duration, which block the transmission of control input. According to the sleeping or activating status of dos attacks, a switched positive system model composed of two positive subsystems is constructed. By considering the positive property of states and the effects of dos attacks,a new event-triggering scheme is proposed. By using the matrix decomposition technique, the gain matrix of the event-triggered controller is parameterized as a combination of non-positive and non-negative components. Under such designed controller, a sufficient criterion is derived to guarantee the positive property and stability of the corresponding system. At last, a numerical example is carried out to substantiate the proposed result.

关键词： Networked positive systems dos attacks Event-triggered control Switching approach

Dynamic Event-Triggered Leader-Following Consensus of Multiagent Systems under dos attacks

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Dynamic Event-Triggered Leader-Following Consensus of Multia...

第43届中国控制会议

作者： Ji Ma Xiangyong Chen Yue Wu Ji Sun Jianhua Liu The Key Laboratory of Complex Systems and Intelligent Computing in Universities of Shandong School of Automation and Electrical Engineering Linyi University

In this paper, the leader-following consensus of multi-agent systems(MASs) under denial-of-service(dos) attacks over undirected networks is studies. First, introduce an estimator under dos attacks to design a dynamic event-triggered communication protocol, which avoids continuous communication between agents. Then, with the presence of the estimator between the triggering instants can reduce the state shift. In contrast to the conventional method, the existence of dynamic threshold need fewer triggering times. Under this control strategy, the systems only need the states in triggering instants according to estimated states. Finally, verify the effectiveness of the proposed approach by a simulation example.

关键词： Multi-agent systems Event-triggered protocol Leader-following consensus dos attacks

Resilient Automated Intersection Control of CAVs subject to dos attacks

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Resilient Automated Intersection Control of CAVs subject to ...

第43届中国控制会议

作者： Chaobin Zhou Jian Gong Ziyi Zhou Qing Ling College of Mechano-Electronic Engineering Lanzhou University of Technology School of Mechanical Engineering Southeast University College of Automation and College of Artificial Intelligence Nanjing University of Posts and Telecommunications School of Transportation Southeast University School of Civil Engineering Lanzhou University of Technology

This paper tackles the challenge of automated intersection control for connected and automated vehicles(CAVs)subject to Denial-of-Service(dos) *** attacks can disrupt vehicular communication,resulting in heightened service time and transmission delays,thereby elevating the risk of collisions at *** address this issue,we propose a resilient automated intersection control system ensuring the secure passage of connected vehicles through non-signalized *** synthesize a resilient controller for the automated intersection control system,we utilize the polytopic overapproximation technique based on the real Jordan *** technique enables the modeling of system dynamics and uncertainties,facilitating the derivation of sufficient conditions for system *** the resolution of linear matrix inequalities,we determine controller gains that meet these stability *** examples are presented to showcase the efficacy of the proposed control method.

关键词： Automated Intersection Control Connected and Automated Vehicles Diutributed Control dos attacks

Observer-based Event-triggered Predictive Control under dos attacks

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Observer-based Event-triggered Predictive Control under DoS ...

第40届中国控制会议

作者： Xiuping Yang Chen Peng School of Mechanical and Electrical Engineering and Automation Shanghai University

This paper deals with the observer-based event-triggered predictive control problem for networked control systems（NCSs） subject to state unmeasurable and packet loss induced by dos ***,a switching observer is introduced to reconstruct the state of the system,meanwhile,an event generator is designed to reduced communication ***,in order to compensate for the triggered packet loss caused by the attacks,an observer-based predictive controller is ***,by constructing an appropriate Lyapunov functional,sufficient conditions are obtained to ensure the exponential stability of the closed-loop ***,a numerical example is given to demonstrate effectiveness of the proposed control strategy.

关键词： Networked Control Systems dos attacks Event-triggered Control Predictive Control

Event-triggered Control for Stochastic Networked Control Systems under dos attacks

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Event-triggered Control for Stochastic Networked Control Sys...

第三十九届中国控制会议

作者： Zenghui Hu Xiaowu Mu School of Mathematics and Statistics Zhengzhou University

This paper investigates the event-triggered control（ETC） problem for stochastic networked control systems（NCSs）with exogenous disturbances and Denial-of-Service（dos） attacks. The ETC strategy is proposed to reduce the utilization of network resource while defending the dos attacks. Based on the introduced ETC strategy, sufficient conditions, which rely on the frequency and duration properties of dos attacks, are obtained to achieve the stochastic input-to-state stability and Zenofreeness of the ETC stochastic NCSs. An example of air vehicle system is given to explain the effectiveness of proposed ETC strategy.

关键词： Event-triggered control networked control systems stochastic systems dos attacks stochastic input-to-state stability