Mojahedian, Mohammad MahdiAttarifar, MasoudLozano Solsona, Angel2023-03-232023-03-232022Mojahedian MM, Attarifar M, Lozano A. Spatial-wideband effect in line-of-sight MIMO communication. In: IEEE International Conference on Communications (ICC 2022); 2022 May 16-20; Seoul, Republic of Korea. [Piscataway]: IEEE; 2022. p. 3972-7. DOI: 10.1109/ICC45855.2022.98390321550-3607http://hdl.handle.net/10230/56333Comunicació presentada a IEEE International Conference on Communications (ICC 2022), celebrat del 16 al 20 de maig de 2022 a Seül, Corea del Sud.This paper addresses the spatial-wideband effect in line-of-sight multiple-input multiple-output channels. This effect arises once the bandwidth is large enough that the differences in propagation delays for distinct transmit-receive antenna pairs cease to be negligible relative to the symbol period; this, in turn, gives rise to intersymbol interference. The impact of this effect is quantified as a function of the relevant geometric parameters (range, array orientations, antenna spacings) and a family of scalable solutions is proposed to counter it. In particular, a solution based on per-antenna delay lines at transmitter and receiver is shown to be highly effective, and a criterion is derived to set those delay lines as a function of the channel.application/pdfeng© 2022 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/ICC45855.2022.9839032info:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.1109/ICC45855.2022.9839032line-of-sight communicationmultiple-input multiple-outputspatial-wideband effectbeam squintprecodinginfo:eu-repo/semantics/openAccess