摘要
物联网通过采用认知无线电的动态频谱共享机制提高了频谱利用率,然而认知物联网(Cognitive Internet of Things,CIoT)容易受到多种攻击,包括干扰攻击和窃听攻击。首先,基于联盟博弈考虑一个合作模型,其中合法用户合作传输以提高信干噪比(Signal to Interference plus Noise Ratio,SINR),而干扰机合作以提高接收信号强度(Jammer Received Signal Strength,JRSS),窃听机旨在降低系统的保密速率。其次,基于演化博弈论研究了CIoT网络中合法用户和攻击者的动态特性,利用能量采集(Energy Harvesting,EH)技术提高用户的发射功率以提高SINR,从而提高用户的合作水平。此外,通过设置协作干扰节点劣化窃听信道以提高系统的保密速率。仿真结果表明,所提方法在应对干扰攻击和窃听攻击问题上是有效的,且在SINR和保密速率方面优于传统方法。
IoT(Internet of Things)improves spectrum utilization by adopting the dynamic spectrum sharing mechanism of cognitive radio.However,the CIoT(Cognitive Internet of Things)is vulnerable to a variety of attacks,including jamming attacks and eavesdropping attacks.First,based on the coalition game,this paper designs a cooperative model in which legitimate users cooperate in transmission to improve the SINR(Signal to Interference plus Noise Ratio),while jammers cooperate to improve the strength of JRSS(Jammer Received Signal Strength),and eavesdroppers aim to reduce the secrecy rate of the system.Then,based on evolutionary game theory,this paper studies the dynamics of legitimate users and attackers in CIoT networks,uses EH(Energy Harvesting)technology to increase the users’transmitting power to improve SINR and thus the cooperation level of users.In addition,collaborative jamming nodes are set up to degrade the qualities of eavesdropping channel,so as to improve the secrecy rate of the system.Simulation results indicate that the proposed method is effective in dealing with jamming and eavesdropping attacks,and is superior to the conventional methods in terms of SINR and secrecy rate.
作者
王锐亮
王俊
林瑞全
刘佳鑫
徐浩东
丘航丁
WANG Ruiliang;WANG Jun;LIN Ruiquan;LIU Jiaxin;XU Haodong;QIU Hangding(Institute of Electrical and Automation Engineering,Fuzhou University,Fuzhou Fujian 350108,China)
出处
《通信技术》
2023年第2期167-174,共8页
Communications Technology
基金
国家自然科学基金项目“基于能量采集的认知无线电频谱感知及接入方法的研究”(61871133)
福建省科技厅高校产学项目“公私网结合的疫情应急通信指挥系统”(2020H6006)。
关键词
干扰攻击
窃听攻击
联盟博弈
演化博弈
能量采集
协作干扰
jamming attack
eavesdropping attack
coalition game
evolutionary game
energy harvesting
collaborative jamming
