Modified conjugate beamforming for cell-free massive MIMO

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Title:	Modified conjugate beamforming for cell-free massive MIMO
Author:	Attarifar, Masoud; Abbasfar, Aliazam; Lozano Solsona, Angel
Abstract:	We present a modification of conjugate beamforming for the forward link of cell-free massive MIMO networks. This modification eliminates the self-interference and yields a performance that, without forward pilots, closely approaches what would be achieved with such pilots in place. The simplicity of conjugate beamforming is preserved, with no need for matrix inversions, at the expense of fading-rate coordination among the access points.
Abstract:	The work of A. Lozano was supported in part by MINECO/FEDER, UE under Project TEC2015-66228-P, and in part by the European Research Council through H2020 Framework Programme/ERC under Grant 694974.
Subject(s):	-Cell-free networks -Massive MIMO -Conjugate beamforming -Power allocation
Rights:	info:eu-repo/semantics/embargoedAccess © 2019 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/LWC.2018.2890470
Document type:	Article Article - Accepted version
Published by:	Institute of Electrical and Electronics Engineers (IEEE)
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