Physical layer authentication (PLA) is a promising solution to address the security issue raised due to malicious jamming or spoofing. However, accurate and diversified channel state information is required to implement the PLA schemes. In this regard, reconfigurable intelligent surface (RIS) has the potential to quickly reshape the communication environment at a cheap cost, and thus has great potential to enhance the PLA. In this paper, we propose a RIS-assisted channel impulse response (CIR)-based dynamic PLA scheme. Specifically, the receiver exploits the geographic location information of the transmitters embedded in CIR to identify the message. In order to reduce the impact of the components representing environmental changes in CIR on the authentication, the method of regularly updating CIR database is adopted. In addition, with RIS enriched CIR information, we can achieve a high authentication rate by constructing a classification neural network. Experiments are conducted based on the communication system with DeepMIMO datasets, and the simulation results demonstrate that the proposed authentication scheme is effective for the identification of both first-attack and non-first-attack spoofers.


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    Title :

    Reconfigurable Intelligent Surface-Aided Physical Layer Authentication with Deep Learning


    Contributors:
    Liu, Haixia (author) / Li, Lixin (author) / Tang, Xiao (author) / Lin, Wensheng (author) / Yang, Fucheng (author) / Yin, Tong (author) / Han, Zhu (author)


    Publication date :

    2024-06-24


    Size :

    9111999 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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