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Communications and Networking. 16th EAI International Conference, ChinaCom 2021, Virtual Event, November 21-22, 2021, Proceedings

Research Article

Selective Modulation and Cooperative Jamming for Secure Communication in Untrusted Relay Systems

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  • @INPROCEEDINGS{10.1007/978-3-030-99200-2_27,
        author={Li Huang and Xiaoxu Wu and Hang Long},
        title={Selective Modulation and Cooperative Jamming for Secure Communication in Untrusted Relay Systems},
        proceedings={Communications and Networking. 16th EAI International Conference, ChinaCom 2021, Virtual Event, November 21-22, 2021, Proceedings},
        proceedings_a={CHINACOM},
        year={2022},
        month={4},
        keywords={Physical layer security Cooperative systems Selective modulation},
        doi={10.1007/978-3-030-99200-2_27}
    }
    
  • Li Huang
    Xiaoxu Wu
    Hang Long
    Year: 2022
    Selective Modulation and Cooperative Jamming for Secure Communication in Untrusted Relay Systems
    CHINACOM
    Springer
    DOI: 10.1007/978-3-030-99200-2_27
Li Huang,*, Xiaoxu Wu, Hang Long
    *Contact email: huangliqiaoyi@163.com

    Abstract

    In this paper, an innovative secure communication scheme for untrusted relay systems is proposed. The source and jamming signals are jointly designed based on the selective modulation. The source signal adopts selective modulation, composed of one selection bit and one or more signal bits. The selection bit is employed to carry confidential information, while the signal bits are generated randomly and are modulated the random signal. The selection bit determines the transmit slot/frequency of signal bits, namely, the random signal. The design of the cooperative jamming signal includes two parts, adjusting the signal transmit power and rotating the signal phase. The simulation results demonstrate that our proposed scheme can make the bit error ratio of the selection bit at the untrusted relay to be 0.5. That is, there is no confidential information leakage at the relay node. Besides, the proposed scheme is superior to the Gaussian jamming signal in terms of the secrecy capacity.

    Keywords
    Physical layer security Cooperative systems Selective modulation
    Published
    2022-04-05
    Appears in
    SpringerLink
    http://dx.doi.org/10.1007/978-3-030-99200-2_27
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