A unified treatment of optimum pilot overhead in multipath fading channels

The optimization of the pilot overhead in single-user wireless fading channels is investigated, and the dependence of this overhead on various system parameters of interest (e.g., fading rate, signal-to-noise ratio) is quantified. The achievable pilot-based spectral efficiency is expanded with respe...

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Detalhes bibliográficos
Autores: Jindal, Nihar, Lozano Solsona, Angel
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2010
País:España
Recursos: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:10230/13027
Acesso em linha:http://hdl.handle.net/10230/13027
http://dx.doi.org/10.1109/TCOMM.2010.083110.090696
Access Level:acceso abierto
Palavra-chave:Doppler, Efecte
Comunicació sense fil, Sistemes de
Ràdio -- Antenes
MIMO
Spectral efficiency
Channel estimation
Doppler spectrum
Multiantenna
Mutual information
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oai_identifier_str oai:recercat.cat:10230/13027
network_acronym_str ES
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repository_id_str
spelling A unified treatment of optimum pilot overhead in multipath fading channelsJindal, NiharLozano Solsona, AngelDoppler, EfecteComunicació sense fil, Sistemes deRàdio -- AntenesMIMOSpectral efficiencyChannel estimationDoppler spectrumMultiantennaMutual informationThe optimization of the pilot overhead in single-user wireless fading channels is investigated, and the dependence of this overhead on various system parameters of interest (e.g., fading rate, signal-to-noise ratio) is quantified. The achievable pilot-based spectral efficiency is expanded with respect to the fading rate about the no-fading point, which leads to an accurate order expansion for the pilot overhead. This expansion identifies that the pilot overhead, as well as the spectral efficiency penalty with respect to a reference system with genie-aided CSI (channel state information) at the receiver, depend on the square root of the normalized Doppler frequency. It is also shown that the widely-used block fading model is a special case of more accurate continuous fading models in terms of the achievable pilot-based spectral efficiency. Furthermore, it is established that the overhead optimization for multiantenna systems is effectively the same as for single-antenna systems with the normalized Doppler frequency multiplied by the number of transmit antennas.Work supported by the Spanish Ministry of Science and Innovation (Refs. TEC2009-13000 and CONSOLIDER-INGENIO CSD2008-00010 ”COMONSENS”)Institute of Electrical and Electronics Engineers (IEEE)Universitat Pompeu Fabra201120112010info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttp://hdl.handle.net/10230/13027http://dx.doi.org/10.1109/TCOMM.2010.083110.090696reponame: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 communications. 2010;58(10):2939-48info:eu-repo/grantAgreement/ES/3PN/TEC2009-13000info:eu-repo/grantAgreement/ES/3PN/CSD2008-00010© 2010 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./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5567190info:eu-repo/semantics/openAccessoai:recercat.cat:10230/130272026-05-29T05:05:01Z
dc.title.none.fl_str_mv A unified treatment of optimum pilot overhead in multipath fading channels
title A unified treatment of optimum pilot overhead in multipath fading channels
spellingShingle A unified treatment of optimum pilot overhead in multipath fading channels
Jindal, Nihar
Doppler, Efecte
Comunicació sense fil, Sistemes de
Ràdio -- Antenes
MIMO
Spectral efficiency
Channel estimation
Doppler spectrum
Multiantenna
Mutual information
title_short A unified treatment of optimum pilot overhead in multipath fading channels
title_full A unified treatment of optimum pilot overhead in multipath fading channels
title_fullStr A unified treatment of optimum pilot overhead in multipath fading channels
title_full_unstemmed A unified treatment of optimum pilot overhead in multipath fading channels
title_sort A unified treatment of optimum pilot overhead in multipath fading channels
dc.creator.none.fl_str_mv Jindal, Nihar
Lozano Solsona, Angel
author Jindal, Nihar
author_facet Jindal, Nihar
Lozano Solsona, Angel
author_role author
author2 Lozano Solsona, Angel
author2_role author
dc.contributor.none.fl_str_mv Universitat Pompeu Fabra
dc.subject.none.fl_str_mv Doppler, Efecte
Comunicació sense fil, Sistemes de
Ràdio -- Antenes
MIMO
Spectral efficiency
Channel estimation
Doppler spectrum
Multiantenna
Mutual information
topic Doppler, Efecte
Comunicació sense fil, Sistemes de
Ràdio -- Antenes
MIMO
Spectral efficiency
Channel estimation
Doppler spectrum
Multiantenna
Mutual information
description The optimization of the pilot overhead in single-user wireless fading channels is investigated, and the dependence of this overhead on various system parameters of interest (e.g., fading rate, signal-to-noise ratio) is quantified. The achievable pilot-based spectral efficiency is expanded with respect to the fading rate about the no-fading point, which leads to an accurate order expansion for the pilot overhead. This expansion identifies that the pilot overhead, as well as the spectral efficiency penalty with respect to a reference system with genie-aided CSI (channel state information) at the receiver, depend on the square root of the normalized Doppler frequency. It is also shown that the widely-used block fading model is a special case of more accurate continuous fading models in terms of the achievable pilot-based spectral efficiency. Furthermore, it is established that the overhead optimization for multiantenna systems is effectively the same as for single-antenna systems with the normalized Doppler frequency multiplied by the number of transmit antennas.
publishDate 2010
dc.date.none.fl_str_mv 2010
2011
2011
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/10230/13027
http://dx.doi.org/10.1109/TCOMM.2010.083110.090696
url http://hdl.handle.net/10230/13027
http://dx.doi.org/10.1109/TCOMM.2010.083110.090696
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv IEEE transactions on communications. 2010;58(10):2939-48
info:eu-repo/grantAgreement/ES/3PN/TEC2009-13000
info:eu-repo/grantAgreement/ES/3PN/CSD2008-00010
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 15,812429

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