A Turbo SDMA Receiver for Strongly Nonlinearly Distorted MC-CDMA Signals,
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/11144/3739 |
Resumo: | This paper considers the use of space division multiple access (SDMA) techniques for the uplink of multi-carrier code division multiple access (MCCDMA) systems, where the transmitted signals face strong nonlinear distortion effects. The signal transmitted by each mobile terminal (MT) is submitted to a nonlinear operation consisting of a clipping device followed by a frequency-domain filtering operation, so as to reduce the envelope fluctuations and peak-to-mean envelope power ratio (PMEPR) while maintaining the spectral occupation of conventional MC-CDMA signals. At the base station, an iterative receiver employing multiple antennas jointly performs turbo multi-user detection and the estimation and cancellation of nonlinear distortion effects. Performance results show that the proposed receiver structures can achieve good performances that are very close to those obtained with linear transmitters, even for high system load and/or when a very low-PMEPR MC-CDMA transmission is intended for each MT |
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A Turbo SDMA Receiver for Strongly Nonlinearly Distorted MC-CDMA Signals,Multi-carrier code division multiple access (MC-CDMA)Multi-user detectionNonlinear effectsSpace division multiple access (SDMA)Turbo equalizationThis paper considers the use of space division multiple access (SDMA) techniques for the uplink of multi-carrier code division multiple access (MCCDMA) systems, where the transmitted signals face strong nonlinear distortion effects. The signal transmitted by each mobile terminal (MT) is submitted to a nonlinear operation consisting of a clipping device followed by a frequency-domain filtering operation, so as to reduce the envelope fluctuations and peak-to-mean envelope power ratio (PMEPR) while maintaining the spectral occupation of conventional MC-CDMA signals. At the base station, an iterative receiver employing multiple antennas jointly performs turbo multi-user detection and the estimation and cancellation of nonlinear distortion effects. Performance results show that the proposed receiver structures can achieve good performances that are very close to those obtained with linear transmitters, even for high system load and/or when a very low-PMEPR MC-CDMA transmission is intended for each MTIEEE2018-04-13T17:23:23Z2008-02-01T00:00:00Z2008-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/11144/3739eng0840-868810.1109/CJECE.2008.4621793Silva, PauloDinis, Ruiinfo: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:RCAAP2024-01-11T02:17:42Zoai:repositorio.ual.pt:11144/3739Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:33:31.212344Repositório 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 |
A Turbo SDMA Receiver for Strongly Nonlinearly Distorted MC-CDMA Signals, |
title |
A Turbo SDMA Receiver for Strongly Nonlinearly Distorted MC-CDMA Signals, |
spellingShingle |
A Turbo SDMA Receiver for Strongly Nonlinearly Distorted MC-CDMA Signals, Silva, Paulo Multi-carrier code division multiple access (MC-CDMA) Multi-user detection Nonlinear effects Space division multiple access (SDMA) Turbo equalization |
title_short |
A Turbo SDMA Receiver for Strongly Nonlinearly Distorted MC-CDMA Signals, |
title_full |
A Turbo SDMA Receiver for Strongly Nonlinearly Distorted MC-CDMA Signals, |
title_fullStr |
A Turbo SDMA Receiver for Strongly Nonlinearly Distorted MC-CDMA Signals, |
title_full_unstemmed |
A Turbo SDMA Receiver for Strongly Nonlinearly Distorted MC-CDMA Signals, |
title_sort |
A Turbo SDMA Receiver for Strongly Nonlinearly Distorted MC-CDMA Signals, |
author |
Silva, Paulo |
author_facet |
Silva, Paulo Dinis, Rui |
author_role |
author |
author2 |
Dinis, Rui |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Silva, Paulo Dinis, Rui |
dc.subject.por.fl_str_mv |
Multi-carrier code division multiple access (MC-CDMA) Multi-user detection Nonlinear effects Space division multiple access (SDMA) Turbo equalization |
topic |
Multi-carrier code division multiple access (MC-CDMA) Multi-user detection Nonlinear effects Space division multiple access (SDMA) Turbo equalization |
description |
This paper considers the use of space division multiple access (SDMA) techniques for the uplink of multi-carrier code division multiple access (MCCDMA) systems, where the transmitted signals face strong nonlinear distortion effects. The signal transmitted by each mobile terminal (MT) is submitted to a nonlinear operation consisting of a clipping device followed by a frequency-domain filtering operation, so as to reduce the envelope fluctuations and peak-to-mean envelope power ratio (PMEPR) while maintaining the spectral occupation of conventional MC-CDMA signals. At the base station, an iterative receiver employing multiple antennas jointly performs turbo multi-user detection and the estimation and cancellation of nonlinear distortion effects. Performance results show that the proposed receiver structures can achieve good performances that are very close to those obtained with linear transmitters, even for high system load and/or when a very low-PMEPR MC-CDMA transmission is intended for each MT |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-02-01T00:00:00Z 2008-02 2018-04-13T17:23:23Z |
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/11144/3739 |
url |
http://hdl.handle.net/11144/3739 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0840-8688 10.1109/CJECE.2008.4621793 |
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 |
IEEE |
publisher.none.fl_str_mv |
IEEE |
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 |
repository.mail.fl_str_mv |
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1799136813918453760 |