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Jamming Assisted covert wireless communication in Multi-Channel Systems

China communications 2024年第9期21卷 211-224页

作者： Che Bohan Sha Nan Yang Weiwei Lu Xingbo Gao Chang Army Engineering University of PLA Nanjing 210007China Beijing University of Posts and Telecommunications Beijing 100876China

This paper investigates the jammerassisted multi-channel covert wireless communication(CWC)by exploiting the randomness of sub-channel selection to confuse the *** particular,we propose two sub-channel selection transmission schemes,named random sub-channel selection(RSS)scheme and maximum sub-channel selection(MSS)scheme,to enhance communication *** each proposed scheme,we first derive closed-form expressions of the transmission outage probability(TOP),the average effective rate,and the minimum average detection error probability(DEP).Then,the average effective covert rate(ECR)is maximized by jointly optimizing the transmit power at the transmitter and the number of *** results show that there is an optimal value of the number of sub-channels that maximizes the average *** also find that to achieve the maximum average ECR,a larger number of subchannels are needed facing a stricter covertness constraint.

关键词： covert wireless communication jamming multi-channel system

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covert wireless communication on Beidou Short Message communication

Covert Wireless Communication on Beidou Short Message Commun...

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第十三届中国卫星导航年会

作者： Maochun Wang Weiwei Yang Lu Xu Xin Lv Ye Chen Qingchen Wu Bing Liu College of communications Engineering Army Engineering University of PLA Beijing Satellite Navigation Center

As a significant feature and advantage of BeiDou navigation satellite system（BDS）,short message communication（SMC） with the character of wide coverage and low communication cost,which is widely used in transportation,fishery,agriculture and forestry ***,due to the broadcast nature of wireless transmission,the security issue of SMC cannot be *** existing security systems and research are mostly about encryption algorithms,without considering the protection of communication behavior and the transmitter’s *** this background,we explore the covert wireless communication to guarantee the security of BeiDou ***,the warden’s detection strategy is analyzed through hypothesis testing ***,the covertness of SMC is discussed in two scenarios:whether the user’s location information is exposed or *** simulation results indicate that the user’s SMC behavior can be effectively protected by using the jammer with random transmit power.

关键词： Beidou short message Physical layer security covert wireless communication

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