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A Secure Clock Synchronization Scheme for Wireless Sensor Networks Against malicious attacks

Journal of Systems Science & Complexity 2021年第6期34卷 2125-2138页

作者： ZHANG Xuxin LIU Yanzhang ZHANG Ya School of Automation Southeast UniversityNanjing 210096China Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of EducationNanjing 210096China China Electric Power Research Institute Nanjing 210003China

This paper studies the secure and accurate clock synchronization problem for sensor networks with time-varying delays and malicious attacks.A novel clock synchronization scheme based on the attack detection mechanism,attack compensation,and maximum consensus protocol is *** proposed scheme starts with the detection of the malicious attacks and the clock data under attacks is *** the basis,software clock parameters are updated so that all the nodes in the network can have the same software skew and offset,so the clock synchronization can be ***,it is theoretically proved that the proposed scheme can achieve the attack detection correctly,and further can guarantee a secure and accurate clock *** addition,extensive simulations are also conducted to validate the effectiveness of the proposed scheme.

关键词： Clock synchronization communication delays consensus malicious attacks wireless sensor networks

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Robust Hybrid Artificial Fish Swarm Simulated Annealing Optimization Algorithm for Secured Free Scale Networks against malicious attacks

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Computers, Materials & Continua 2021年第1期66卷 903-917页

作者： Ganeshan Keerthana Panneerselvam Anandan Nandhagopal Nachimuthu Anna University Chennai600025India Department of ECE C.Abdul Hakeem College of Engineering and TechnologyVelloreIndia Department of ECE Excel Engineering CollegeSalemIndia

Due to the recent proliferation of cyber-attacks,highly robust wireless sensor networks(WSN)become a critical issue as they survive node ***-free WSN is essential because they endure random attacks *** they are susceptible to malicious attacks,which mainly targets particular significant ***,the robustness of the network becomes important for ensuring the network *** paper presents a Robust Hybrid Artificial Fish Swarm Simulated Annealing Optimization(RHAFS-SA)*** is introduced for improving the robust nature of free scale networks over malicious attacks(MA)with no change in degree *** proposed RHAFS-SA is an enhanced version of the Improved Artificial Fish Swarm algorithm(IAFSA)by the simulated annealing(SA)*** proposed RHAFS-SA algorithm eliminates the IAFSA from unforeseen vibration and speeds up the convergence *** experimentation,free scale networks are produced by the Barabási–Albert(BA)model,and real-world networks are employed for testing the outcome on both synthetic-free scale and real-world *** experimental results exhibited that the RHAFS-SA model is superior to other models interms of diverse aspects.

关键词： Free scale networks robustness malicious attacks fish swarm algorithm

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Performance of Analysis Cognitive Radio with Cooperative Sensing under malicious attacks over Nakagami Faded Channels

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Wireless Engineering and Technology 2016年第2期7卷 67-74页

作者： Hagar O. Shazly Asmaa Saafan Hesham El Badawy Hadia M. El Hennawy Faculty of Engineering Ain Shams University Cairo Egypt National Telecommunication Institute (NTI) Cairo Egypt

The different realistic propagation channels are faced frequently the multipath fading environments. The main goal of this system design (cognitive radio network) is to improve the efficiency of spectrum access on a non-interfering basis. This system achieves high utilization for the limited spectrum in order to fulfill needs for all users’ demands which are considered as a problem in wireless communications due to rapidly increasing in wireless applications and service. This system is exposed to attack due to the vulnerabilities existence in this system. So, the main outcome of this paper is to investigate the performance of the cooperative sensing in cognitive radio networks under malicious attacks over different channel impairments, and to illustrate the most suitable individual probability of detection in real faded channel by using Nakagami model. This paper illustrates the effectiveness of the attacks and fading on the performance of spectrum sensing process.

关键词： Cognitive Radio Cooperative Sensing malicious attacks Nakagami Faded Channels

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Towards resilient average consensus in multi-agent systems:a detection and compensation approach

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Frontiers of Information Technology & Electronic Engineering 2024年第2期25卷 182-196页

作者： Chongrong FANG Wenzhe ZHENG Zhiyu HE Jianping HE Chengcheng ZHAO Jingpei WANG Department of Automation Shanghai Jiao Tong UniversityShanghai200240China State Key Laboratory of Industrial Control Technology Zhejiang UniversityHangzhou310027China Technology and Engineering Center for Space Utilization Chinese Academy of SciencesBeijing100094China

Consensus is one of the fundamental distributed control technologies for collaboration in multi-agent systems such as collaborative handling in intelligent *** this paper,we study the problem of resilient average consensus for multi-agent systems with misbehaving *** protect consensus value from being influenced by misbehaving nodes,we address this problem by detecting misbehaviors,mitigating the corresponding adverse impact,and achieving the resilient average *** types of misbehaviors are considered,including attacks,accidental faults,and link *** characterize the adverse impact of misbehaving nodes in a distributed manner via two-hop communication information and develop a deterministic detection compensation based consensus(D-DCC)algorithm with a decaying fault-tolerant error *** scenarios wherein information sets are intermittently available due to link failures,a stochastic extension named stochastic detection compensation based consensus(S-DCC)algorithm is *** prove that D-DCC and S-DCC allow nodes to asymptotically achieve resilient accurate average consensus and unbiased resilient average consensus in a statistical sense,***,the Wasserstein distance is introduced to analyze the accuracy of ***,extensive simulations are conducted to verify the effectiveness of the proposed algorithms.

关键词： Resilient consensus Multi-agent systems malicious attacks Detection Compensation

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A Compact Trust Computation and Management Approach for Defending against Derailed attacks for Wireless Sensor Networks and Its Applications

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Circuits and Systems 2016年第10期7卷 3228-3245页

作者： R. Mohan Kumar A. V. Ram Prasad Department of ECE K.L.N. College of Engineering Sivagangai District India

One of the most effective measurements of intercommunication and collaboration in wireless sensor networks which leads to provide security is Trust Management. Most popular decision making systems used to collaborate with a stranger are tackled by two different existing trust management systems: one is a policy-based approach which verifies the decision built on logical properties and functionalities;the other approach is reputation-based approach which verifies the decision built on physical properties and functionalities of WSN. Proofless authorization, unavailability, vagueness and more complexity cause decreased detection rate and spoil the efficacy of the WSN in existing approaches. Some of the integrated approaches are utilized to improve the significance of the trust management strategies. In this paper, a Compact Trust Computation and Management (CTCM) approach is proposed to overcome the limitations of the existing approaches, also it provides a strong objective security with the calculability and the available security implications. Finally, the CTCM approach incorporates the optimum trust score for logical and physical investigation of the network resources. The simulation based experiment results show that the CTCM compact trust computation and management approach can provide an efficient defending mechanism against derailing attacks in WSN.

关键词： Wireless Sensor Networks Trust Management Security Intrusion Detection System malicious attacks

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Topological Vulnerability of Chinese High Speed Rail Network

Topological Vulnerability of Chinese High Speed Rail Network

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第三十届中国控制会议

作者： ZHANG Jianhua~1,CAI Yunze~2,XU Xiaoming~(1,2,3,4),HONG Liu~1,WANG Shuliang~1 1.Department of Control Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,P.R.China 2.Department of Automation,Shanghai Jiao Tong University,Shanghai 200240,P.R.China 3.University of Shanghai for Science and Technology,Shanghai,200093 P.R.China 4.Shanghai Academy of System Science,Shanghai 200093,P.R.China

＜正＞Chinese high speed rail network has been given more and more attentions recent years,and it is adopted to improve the whole developments of ***-short term planning of Chinese high speed rail network is given and the topological structure of Chinese high-speed rail network is discussed to investigate the reliability of network based on complex network theory and graph *** parameters are presented to assess the topological characteristics of Chinese high speed rail network,and the reliability and robustness of the network subject to attacks can be *** parameter called unit degree betwweenness is firstly proposed to assess the transportation capacity of lines connecting with the *** attack protocols,the largest degree node-based attacks and the highest betweenness node-based attacks,are involved into Chinese high speed rail network to assess the topological reliability and robustness,and the results show that the highest betweenness node-based attacks can cause more damages to the network than the largest degree node-based *** interventions are adopted to improve the global connectivity and enhance the reliability and robustness of Chinese high speed rail network,and they are proved to be effective by simulations.

关键词： High speed rail network malicious attacks Reliability assessments Topological interventions

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