Subset MMSE receivers for cell-free networks
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- dc.contributor.author Attarifar, Masoud
- dc.contributor.author Abbasfar, Aliazam
- dc.contributor.author Lozano Solsona, Angel
- dc.date.accessioned 2020-07-21T09:51:04Z
- dc.date.issued 2020
- dc.description.abstract This paper formulates linear MMSE receivers that are both network- and user-centric for the uplink of cell-free wireless networks with centralized processing. Precisely, every user’s reception involves a distinct subset of access points (APs) while every AP participates in the reception of a distinct subset of users, hence the moniker subset MMSE receivers . These subsets, defined on the basis of the large-scale channel gains between users and APs, capture the most relevant signal and interference contributions while disregarding those whose processing is cost-ineffective and whose associated channel estimations would incur unnecessary overheads. With that, subset reception approaches the performance of network-wide MMSE reception, offering a multiple-fold improvement over cellular and matched-filtering counterparts, while being scalable in terms of cost and channel estimation. Moreover, because the subsets overlap considerably, they can sometimes be advantageously combined and the computation of the corresponding receivers can share a hefty amount of processing.en
- dc.description.sponsorship M. Attarifar and A. Abbasfar are with the University of Tehran, North Kargar St., Tehran, Iran (e-mail: m.attarifar@ut.ac.ir; abbasfar@ut.ac.ir). Their work is supported by the Iranian National Science Foundation (INSF) Grant #98012057. A. Lozano is with Univ. Pompeu Fabra, 08018 Barcelona (e-mail: angel.lozano@upf.edu). His work is supported by the European Research Council under the H2020 Framework Programme/ERC grant agreement 694974, and by MINECO’s Projects RTI2018-102112 and RTI2018-101040.
- dc.format.mimetype application/pdf
- dc.identifier.citation Attarifar M, Abbasfar A, Lozano A. Subset MMSE receivers for cell-free networks. IEEE Trans Wirel Commun. 2020 Mar 20;19(6):4183-94. DOI: 10.1109/TWC.2020.2980820
- dc.identifier.doi http://dx.doi.org/10.1109/TWC.2020.2980820
- dc.identifier.issn 1536-1276
- dc.identifier.uri http://hdl.handle.net/10230/45143
- dc.language.iso eng
- dc.publisher Institute of Electrical and Electronics Engineers (IEEE)
- dc.relation.ispartof IEEE Transactions on Wireless Communications. 2020 Mar 20;19(6):4183-94
- dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/694974
- dc.relation.projectID info:eu-repo/grantAgreement/ES/2PE/RTI2018-102112
- dc.relation.projectID info:eurepo/grantAgreement/ES/2PE/RTI2018-101040
- dc.rights © 2020 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.2020.2980820
- dc.rights.accessRights info:eu-repo/semantics/openAccess
- dc.subject.keyword Cell-free networksen
- dc.subject.keyword C-RANen
- dc.subject.keyword MMSEen
- dc.subject.keyword Ultradense networksen
- dc.subject.keyword User-centric networksen
- dc.title Subset MMSE receivers for cell-free networksen
- dc.type info:eu-repo/semantics/article
- dc.type.version info:eu-repo/semantics/acceptedVersion