Do, HeedongLee, NamyoonLozano Solsona, Angel2023-02-232023-02-232021Do H, Lee N, Lozano A. Rotatable URAs for line-of-sight MIMO transmission. In: 2021 IEEE Global Communications Conference (GLOBECOM): proceedings; 2021 Dec 7-11; Madrid, Spain. [Piscataway]: IEEE; 2021. [6 p.]. DOI: 10.1109/GLOBECOM46510.2021.9685207http://hdl.handle.net/10230/55886Comunicació presentada a 2021 IEEE Global Communications Conference (GLOBECOM), celebrat del 7 a l'11 de desembre de 2021 a Madrid, Espanya.This paper considers line-of-sight multiple-input multiple-output communication, of interest at millimeter-wave and sub-terahertz frequencies. Building on how, with an angular rotation dependent on the signal-to-noise ratio (SNR), uniform linear arrays (ULAs) can tightly approach the capacity of such channels, we assess the performance of rotatable uniform rectangular arrays (URAs). The changeover from ULAs to URAs is motivated by the interest in reducing the array footprints. For both isotropic and directive antennas, various types of rotatable URAs are devised that—except at very low SNRs—perform remarkably close to their ULA counterparts with considerably smaller footprints.application/pdfeng© 2021 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/GLOBECOM46510.2021.9685207info:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.1109/GLOBECOM46510.2021.9685207DegradationChannel capacityConferencesDirective antennasMIMOGlobal communicationMillimeter wave communicationinfo:eu-repo/semantics/openAccess