Threshold-free multi-attributes physical layer authentication based on expectation–conditional maximization channel estimation in Internet of Things

Tao Jing, Hongyan Huang, Yue Wu, Qinghe Gao, Yan Huo and Jiayu Sun

International Journal of Distributed Sensor Networks, 2022, vol. 18, issue 7, 15501329221107822

Abstract: With the number of Internet of Things devices continually increasing, the endogenous security of Internet of Things communication systems is growingly critical. Physical layer authentication is a powerful means of resisting active attacks by exploiting the unique characteristics inherent in wireless signals and physical devices. Many existing physical layer authentication schemes usually assume physical layer attributes obey certain statistical distributions that are unknown to receivers. To overcome the uncertainty, machine learning–based authentication approaches have been employed to implement threshold-free authentication. In this article, we utilize an expectation–conditional maximization algorithm to provide the physical layer attribute estimates required for the authentication phase and a logistic regression model to achieve threshold-free physical layer authentication. Moreover, a Frank–Wolfe algorithm is considered to achieve fast convergence of the logistic regression parameters and multi-attributes are adopted to increase the differentiation of transmitters. Simulation results demonstrate that the obtained attribute estimates are sufficient to provide a reliable source of data for authentication and the proposed threshold-free multi-attributes physical layer authentication scheme can effectively improve authentication accuracy, with the false alarm rate P f reduced to 0.0263% and the miss detection rate P m reduced to 0.3466%.

Keywords: Physical layer authentication; expectation–conditional maximization algorithm; multi-attributes; logistic regression; Internet of Things (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:sae:intdis:v:18:y:2022:i:7:p:15501329221107822

DOI: 10.1177/15501329221107822

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