Keywords :
authentication performance; channel-phase; Physical-Layer Authentication (PLA); probability of false alarm; Authentication performance; Channel phase; Impersonation attack; Multi carrier transmission; Performance; Phase based; Physical layers; Physical-layer authentication; Power; Probability of false alarm; Signal Processing; Information Systems; Hardware and Architecture; Computer Science Applications; Computer Networks and Communications
Abstract :
[en] This paper focuses on the serious threat to security of key-based physical-layer authentication (PLA) by an eavesdropper using an elaborate impersonation attack, which aims to pass the authentication process illegally. To prevent the eavesdropper from decreasing the authentication performance, we propose a robust channel-phase based PLA scheme for multi-carriers transmission, which contains a novel two-level decision. Specifically, the first level decision is used to protect legitimate users from high receiver power caused by the elaborate attack of the eavesdropper, and the second one is used to further authenticate the user. The optimal threshold for accurately detecting the response signal with high receiver power is derived. Moreover, we provide the theoretical performance analysis for the proposed scheme, and derive the closed-form expressions of the probability of detection and false alarm via the numerical statistic and the proper approximation. Simulation results show the robustness of our proposed scheme and verify the effectiveness of the theoretical analysis.
Funding text :
This work is supported in part by Research Program of National University of Defense Technology under Grant No. ZK24-60. An earlier version of this paper was presented at 2024 IEEE 24th International Conference on Communication Technology (IEEE ICCT 2024). Xinjin Lu is with the National University of Defense Technology, Changsha 410000, China, and is also with State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, Luoyang 471003, China (luxin-jin2023@163.com). Yuxin Shi, Ru-Han Chen and Kang An are with the Sixty-Third Research Institute, National University of Defense Technology, Nanjing 210000, China (e-mail: shiyuxin13@nudt.edu.cn, tx rhc22@nudt.edu.cn, ankang89@nudt.edu.cn). Zhifei Yang is with State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, Luoyang 471003, China (e-mail: zhifeiyang@163.com). Symeon Chatzinotas is with the Institute of Informatics and Telecommunications, NCSR \u2018Demokritos\u2019, 153 41 Athens, Greece (e-mail: schatzin@ieee.org). Corresponding author: Yuxin Shi.
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