Line-of-sight MIMO via intelligent reflecting surface

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• dc.contributor.author Do, Heedong
• dc.contributor.author Le, Namyoon
• dc.contributor.author Lozano Solsona, Angel
• dc.date.accessioned 2024-03-19T07:39:51Z
• dc.date.available 2024-03-19T07:39:51Z
• dc.date.issued 2023
• dc.description.abstract This paper deals with line-of-sight (LOS) MIMO communication via an intelligent reflecting surface (IRS). It is shown that the number of spatial degrees of freedom (DOF) afforded by this setting grows in proportion with the IRS aperture, as opposed to being dictated by the transmit and receive apertures; this buttresses the interest in IRS deployments at mmWave and terahertz frequencies, with wavelengths and transmission ranges small enough to enable LOS MIMO. Explicit and simple-to-implement IRS phase shifts are put forth that achieve, not only the maximum number of DOF, but the capacity, under a certain geometrical condition. The insights leading to the proposed phase shifts, and to the optimality condition itself, are asymptotic in nature, yet extensive simulations confirm that the performance is excellent for a broad range of settings and even if the optimality condition is not strictly met.
• dc.description.sponsorship The work of Heedong Do and Namyoon Lee was supported in part by the Institute of Information & Communications Technology Planning & Evaluation (IITP) under Grant 2021-0-00161 and in part by the National Research Foundation of Korea (NRF) funded by the Korea Government (MSIT) under Grant 2020R1C1C1013381 and Grant 2022R1A5A1027646. The work of Angel Lozano was supported in part by the European Research Council under Grant 694974, in part by the Institucio Catalana per la Recerca Avan ada (ICREA), and in part by the Marie-Curie Innovative Training Network through Meta Wireless under Grant 956256.
• dc.format.mimetype application/pdf
• dc.identifier.citation Do H, Lee N, Lozano A. Line-of-sight MIMO via intelligent reflecting surface. IEEE Trans Wirel Commun. 2023;22(6):4215-31. DOI: 10.1109/TWC.2022.3224035
• dc.identifier.doi http://dx.doi.org/10.1109/TWC.2022.3224035
• dc.identifier.issn 1536-1276
• dc.identifier.uri http://hdl.handle.net/10230/59490
• dc.language.iso eng
• dc.publisher Institute of Electrical and Electronics Engineers (IEEE)
• dc.relation.ispartof IEEE Transactions on Wireless Communications. 2023;22(6):4215-31.
• dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/694974
• dc.rights © 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, 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 component of this work in other works. http://dx.doi.org/10.1109/TWC.2022.3224035
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.subject.keyword MIMO
• dc.subject.keyword multiantenna channels
• dc.subject.keyword mmWave frequencies
• dc.subject.keyword terahertz frequencies
• dc.subject.keyword intelligent reflecting surface
• dc.subject.keyword Line-of-sight transmission
• dc.title Line-of-sight MIMO via intelligent reflecting surface
• dc.type info:eu-repo/semantics/article
• dc.type.version info:eu-repo/semantics/acceptedVersion