{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,17]],"date-time":"2025-11-17T03:01:01Z","timestamp":1763348461171,"version":"3.40.5"},"reference-count":24,"publisher":"SAGE Publications","issue":"7","license":[{"start":{"date-parts":[[2022,7,1]],"date-time":"2022-07-01T00:00:00Z","timestamp":1656633600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Beijing Natural Science Foundation","award":["4202054"],"award-info":[{"award-number":["4202054"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61871023"],"award-info":[{"award-number":["61871023"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61931001"],"award-info":[{"award-number":["61931001"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["International Journal of Distributed Sensor Networks"],"published-print":{"date-parts":[[2022,7]]},"abstract":"<jats:p> 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\u2013based authentication approaches have been employed to implement threshold-free authentication. In this article, we utilize an expectation\u2013conditional 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\u2013Wolfe 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<jats:sub> f<\/jats:sub> reduced to 0.0263% and the miss detection rate P<jats:sub> m<\/jats:sub> reduced to 0.3466%. <\/jats:p>","DOI":"10.1177\/15501329221107822","type":"journal-article","created":{"date-parts":[[2022,7,28]],"date-time":"2022-07-28T10:39:20Z","timestamp":1659004760000},"page":"155013292211078","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Threshold-free multi-attributes physical layer authentication based on expectation\u2013conditional maximization channel estimation in Internet of Things"],"prefix":"10.1177","volume":"18","author":[{"given":"Tao","family":"Jing","sequence":"first","affiliation":[{"name":"School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongyan","family":"Huang","sequence":"additional","affiliation":[{"name":"School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yue","family":"Wu","sequence":"additional","affiliation":[{"name":"School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4397-9154","authenticated-orcid":false,"given":"Qinghe","family":"Gao","sequence":"additional","affiliation":[{"name":"School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yan","family":"Huo","sequence":"additional","affiliation":[{"name":"School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiayu","family":"Sun","sequence":"additional","affiliation":[{"name":"Beijing Research Institute of Automation for Machinery Industry Limited, Beijing, 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