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dc.contributor.authorQiao, Jingping
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2020-10-28T12:21:41Z
dc.date.available2020-10-28T12:21:41Z
dc.date.issued2020-06-18
dc.date.submitted2020-04-17
dc.identifier.citationQiao, J., & Alouini, M.-S. (2020). Secure Transmission for Intelligent Reflecting Surface-Assisted mmWave and Terahertz Systems. IEEE Wireless Communications Letters, 9(10), 1743–1747. doi:10.1109/lwc.2020.3003400
dc.identifier.issn2162-2345
dc.identifier.issn2162-2337
dc.identifier.doi10.1109/LWC.2020.3003400
dc.identifier.urihttp://hdl.handle.net/10754/665686
dc.description.abstractThis letter focuses on the secure transmission for an intelligent reflecting surface (IRS)-assisted millimeter-wave (mmWave) and terahertz (THz) system, in which a base station (BS) communicates with its destination via an IRS, in the presence of a passive eavesdropper. To maximize the system secrecy rate, the transmit beamforming at the BS and the reflecting matrix at the IRS are jointly optimized with transmit power and discrete phase-shift constraints. It is first proved that the beamforming design is independent of the phase shift design under the rank-one channel assumption. The formulated non-convex problem is then converted into two subproblems, which are solved alternatively. Specifically, the closed-form solution of transmit beamforming at the BS is derived, and the semidefinite programming (SDP)-based method and element-wise block coordinate descent (BCD)-based method are proposed to design the reflecting matrix. The complexity of our proposed methods is analyzed theoretically. Simulation results reveal that the proposed IRS-assisted secure strategy can significantly boost the secrecy rate performance, regardless of eavesdropper's locations (near or blocking the confidential beam).
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.urlhttps://ieeexplore.ieee.org/document/9120206/
dc.rights(c) 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
dc.titleSecure transmission for intelligent reflecting surface-assisted mmWave and terahertz systems
dc.typeArticle
dc.contributor.departmentCommunication Theory Lab
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journalIEEE Wireless Communications Letters
dc.eprint.versionPost-print
dc.contributor.institutionSchool of Information Science and Engineering, Shandong Normal University, Jinan, China
dc.identifier.volume9
dc.identifier.issue10
dc.identifier.pages1743-1747
dc.identifier.arxivid2005.13451
kaust.personQiao, Jingping
kaust.personAlouini, Mohamed-Slim
dc.date.accepted2020-06-15
dc.identifier.eid2-s2.0-85092784198
refterms.dateFOA2020-10-29T05:53:53Z
dc.date.published-online2020-06-18
dc.date.published-print2020-10


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