{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,4,2]],"date-time":"2022-04-02T01:56:25Z","timestamp":1648864585381},"reference-count":35,"publisher":"SAGE Publications","issue":"9","license":[{"start":{"date-parts":[[2018,9,1]],"date-time":"2018-09-01T00:00:00Z","timestamp":1535760000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"name":"Jiangsu Provincial Natural Science Foundation of China","award":["BK20141069"],"award-info":[{"award-number":["BK20141069"]}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["International Journal of Distributed Sensor Networks"],"published-print":{"date-parts":[[2018,9]]},"abstract":"<jats:p> To reduce the number of radio-frequency chains of base station, the use of finite resolution analog beamforming is desirbale in massive multiple-input multiple-output system. This article investigates the secure downlink massive multiple-input multiple-output data transmission with artificial noise at base station in the presence of a multi-antenna passive eavesdropper. The achievable user\u2019s ergodic information rate and ergodic capacity of the eavesdropper are analyzed in detail, respectively. With maximum ratio transmission or maximum ratio combining, we derive closed-form expressions for a tight lower bound on ergodic secrecy rate and tight upper bound for secrecy outage probability. Based on these analytical expressions, the effects of various system parameters on secrecy performance, such as power allocation factor, number of eavesdropper\u2019s antennas, number of the user terminals, total transmission power, and finite resolution analog beamforming parameters, are investigated in detail. Also, the optimal power allocation scheme between data and artificial noise signals is achieved in closed form to maximize the ergodic secrecy rate. In addition, we derive the conditions that the secure massive multiple-input multiple-output system need to meet to obtain a positive secrecy rate. Finally, numerical simulation results validate the system\u2019s secrecy performance and verify all the theoretical analytical results. <\/jats:p>","DOI":"10.1177\/1550147718802254","type":"journal-article","created":{"date-parts":[[2018,9,26]],"date-time":"2018-09-26T05:39:47Z","timestamp":1537940387000},"page":"155014771880225","update-policy":"http:\/\/dx.doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Secure downlink transmission with finite resolution analog beamforming in massive multiple-input multiple-output system"],"prefix":"10.1177","volume":"14","author":[{"given":"Xianyu","family":"Zhang","sequence":"first","affiliation":[{"name":"The Army Engineering University of PLA, Nanjing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daoxing","family":"Guo","sequence":"additional","affiliation":[{"name":"The Army Engineering University of PLA, Nanjing, 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