Linear interference cancellation for the cell-free C-RAN uplink

Drawing on the notion of parallel interference cancellation, this paper formulates a one-shot linear receiver for the uplink of centralized, possibly cloud-based, radio access networks (C-RANs) operating in a cell-free fashion. This receiver exhibits substantial interference rejection abilities, yet...

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Detalles Bibliográficos
Autores: Mosayebi, Reza, Mojahedian, Mohammad Mahdi, Lozano Solsona, Angel
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2021
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10230/47549
Acceso en línea:http://hdl.handle.net/10230/47549
http://dx.doi.org/10.1109/TWC.2020.3034269
Access Level:acceso abierto
Palabra clave:C-RAN
Cell-free networks
Ultradense networks
Parallel interference cancellation
Power control
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spelling Linear interference cancellation for the cell-free C-RAN uplinkMosayebi, RezaMojahedian, Mohammad MahdiLozano Solsona, AngelC-RANCell-free networksUltradense networksParallel interference cancellationPower controlDrawing on the notion of parallel interference cancellation, this paper formulates a one-shot linear receiver for the uplink of centralized, possibly cloud-based, radio access networks (C-RANs) operating in a cell-free fashion. This receiver exhibits substantial interference rejection abilities, yet it does not involve any matrix inversions; rather, its structure hinges on the pairwise projections of the users' channel vectors. Its performance is markedly superior to that of matched-filter beamforming, while the computational cost is decidedly inferior to that of an MMSE filter, altogether constituting an attractive alternative in terms of performance vs cost. Furthermore, with a proper sparsification of the channel matrix that it estimates and processes, the proposed receiver can be rendered scalable in the sense of its computational cost per access point not growing with size of the network. Uplink power control is also readily accommodated.The authors are with Univ. Pompeu Fabra, 08018 Barcelona and their work is supported by the European Research Council under the H2020 Framework Programme/ERC grant agreement 694974, by MINECO’s Projects RTI2018-102112 and RTI2018-101040, and by the ICREA academia program.Institute of Electrical and Electronics Engineers (IEEE)202120212021info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttp://hdl.handle.net/10230/47549http://dx.doi.org/10.1109/TWC.2020.3034269reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésIEEE Transactions on Wireless Communications. 2021;20(3):1544-56info:eu-repo/grantAgreement/EC/H2020/694974info:eu-repo/grantAgreement/ES/2PE/RTI2018-102112info:eu-repo/grantAgreement/ES/2PE/RTI2018-101040© 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/TWC.2020.3034269info:eu-repo/semantics/openAccessoai:recercat.cat:10230/475492026-05-29T05:05:01Z
dc.title.none.fl_str_mv Linear interference cancellation for the cell-free C-RAN uplink
title Linear interference cancellation for the cell-free C-RAN uplink
spellingShingle Linear interference cancellation for the cell-free C-RAN uplink
Mosayebi, Reza
C-RAN
Cell-free networks
Ultradense networks
Parallel interference cancellation
Power control
title_short Linear interference cancellation for the cell-free C-RAN uplink
title_full Linear interference cancellation for the cell-free C-RAN uplink
title_fullStr Linear interference cancellation for the cell-free C-RAN uplink
title_full_unstemmed Linear interference cancellation for the cell-free C-RAN uplink
title_sort Linear interference cancellation for the cell-free C-RAN uplink
dc.creator.none.fl_str_mv Mosayebi, Reza
Mojahedian, Mohammad Mahdi
Lozano Solsona, Angel
author Mosayebi, Reza
author_facet Mosayebi, Reza
Mojahedian, Mohammad Mahdi
Lozano Solsona, Angel
author_role author
author2 Mojahedian, Mohammad Mahdi
Lozano Solsona, Angel
author2_role author
author
dc.subject.none.fl_str_mv C-RAN
Cell-free networks
Ultradense networks
Parallel interference cancellation
Power control
topic C-RAN
Cell-free networks
Ultradense networks
Parallel interference cancellation
Power control
description Drawing on the notion of parallel interference cancellation, this paper formulates a one-shot linear receiver for the uplink of centralized, possibly cloud-based, radio access networks (C-RANs) operating in a cell-free fashion. This receiver exhibits substantial interference rejection abilities, yet it does not involve any matrix inversions; rather, its structure hinges on the pairwise projections of the users' channel vectors. Its performance is markedly superior to that of matched-filter beamforming, while the computational cost is decidedly inferior to that of an MMSE filter, altogether constituting an attractive alternative in terms of performance vs cost. Furthermore, with a proper sparsification of the channel matrix that it estimates and processes, the proposed receiver can be rendered scalable in the sense of its computational cost per access point not growing with size of the network. Uplink power control is also readily accommodated.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10230/47549
http://dx.doi.org/10.1109/TWC.2020.3034269
url http://hdl.handle.net/10230/47549
http://dx.doi.org/10.1109/TWC.2020.3034269
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv IEEE Transactions on Wireless Communications. 2021;20(3):1544-56
info:eu-repo/grantAgreement/EC/H2020/694974
info:eu-repo/grantAgreement/ES/2PE/RTI2018-102112
info:eu-repo/grantAgreement/ES/2PE/RTI2018-101040
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers (IEEE)
publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers (IEEE)
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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