Estimation of CFO and channels in phase-shift orthogonal pilot-aided OFDM systems with transmitter diversity

Detalhes bibliográficos
Autor(a) principal: Ribeiro, C.
Data de Publicação: 2009
Outros Autores: Gameiro, A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/7013
Resumo: We present a CFO estimation algorithm and an associated channel estimation method for broadband OFDM systems with transmitter diversity. The CFO estimation algorithm explores the TD structure of the transmitted symbols carrying pilots and data, relying solely on the data component present on the symbols to estimate the CFO, thus avoiding additional overhead like training symbols or null subcarriers. An intermediate output of the CFO algorithm provides an easy-to-get initial CIR estimate that will be improved with the utilization of a TD LMMSE filter. The feasibility of the investigated methods is substantiated by system simulation using indoor and outdoor broadband wireless channel models. Simulation results show that the joint algorithms provide a near optimal system's performance.
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spelling Estimation of CFO and channels in phase-shift orthogonal pilot-aided OFDM systems with transmitter diversityWe present a CFO estimation algorithm and an associated channel estimation method for broadband OFDM systems with transmitter diversity. The CFO estimation algorithm explores the TD structure of the transmitted symbols carrying pilots and data, relying solely on the data component present on the symbols to estimate the CFO, thus avoiding additional overhead like training symbols or null subcarriers. An intermediate output of the CFO algorithm provides an easy-to-get initial CIR estimate that will be improved with the utilization of a TD LMMSE filter. The feasibility of the investigated methods is substantiated by system simulation using indoor and outdoor broadband wireless channel models. Simulation results show that the joint algorithms provide a near optimal system's performance.SpingerOpen2012-02-28T15:55:42Z2009-01-01T00:00:00Z2009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/7013eng1687-147210.1155/2009/436756Ribeiro, C.Gameiro, A.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:10:01Zoai:ria.ua.pt:10773/7013Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:44:08.473578Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Estimation of CFO and channels in phase-shift orthogonal pilot-aided OFDM systems with transmitter diversity
title Estimation of CFO and channels in phase-shift orthogonal pilot-aided OFDM systems with transmitter diversity
spellingShingle Estimation of CFO and channels in phase-shift orthogonal pilot-aided OFDM systems with transmitter diversity
Ribeiro, C.
title_short Estimation of CFO and channels in phase-shift orthogonal pilot-aided OFDM systems with transmitter diversity
title_full Estimation of CFO and channels in phase-shift orthogonal pilot-aided OFDM systems with transmitter diversity
title_fullStr Estimation of CFO and channels in phase-shift orthogonal pilot-aided OFDM systems with transmitter diversity
title_full_unstemmed Estimation of CFO and channels in phase-shift orthogonal pilot-aided OFDM systems with transmitter diversity
title_sort Estimation of CFO and channels in phase-shift orthogonal pilot-aided OFDM systems with transmitter diversity
author Ribeiro, C.
author_facet Ribeiro, C.
Gameiro, A.
author_role author
author2 Gameiro, A.
author2_role author
dc.contributor.author.fl_str_mv Ribeiro, C.
Gameiro, A.
description We present a CFO estimation algorithm and an associated channel estimation method for broadband OFDM systems with transmitter diversity. The CFO estimation algorithm explores the TD structure of the transmitted symbols carrying pilots and data, relying solely on the data component present on the symbols to estimate the CFO, thus avoiding additional overhead like training symbols or null subcarriers. An intermediate output of the CFO algorithm provides an easy-to-get initial CIR estimate that will be improved with the utilization of a TD LMMSE filter. The feasibility of the investigated methods is substantiated by system simulation using indoor and outdoor broadband wireless channel models. Simulation results show that the joint algorithms provide a near optimal system's performance.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01T00:00:00Z
2009
2012-02-28T15:55:42Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10773/7013
url http://hdl.handle.net/10773/7013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1687-1472
10.1155/2009/436756
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv SpingerOpen
publisher.none.fl_str_mv SpingerOpen
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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