Semidefinite relaxations for MIMO transmissions with high-order QAM constellations

Detalhes bibliográficos
Autor(a) principal: Souto, N.
Data de Publicação: 2016
Outros Autores: Ribeiro, M., Sebastião, P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10071/12324
Resumo: In this letter, simple semidefinite relaxations are proposed for the detection of high-order quadrature amplitude modulations in multiple-input–multiple-output systems. The detector is based on the addition of several convex and concave quadratic inequality constraints into the maximum-likelihood detector before relaxing the problem into a convex one. Combined with a randomized sampling procedure, it is shown that the performance and worst-case computational complexity of the proposed approach makes it very competitive against existing detectors in large problem sizes.
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spelling Semidefinite relaxations for MIMO transmissions with high-order QAM constellationsMIMO detectionQAM constellationsSemidefinite relaxationIn this letter, simple semidefinite relaxations are proposed for the detection of high-order quadrature amplitude modulations in multiple-input–multiple-output systems. The detector is based on the addition of several convex and concave quadratic inequality constraints into the maximum-likelihood detector before relaxing the problem into a convex one. Combined with a randomized sampling procedure, it is shown that the performance and worst-case computational complexity of the proposed approach makes it very competitive against existing detectors in large problem sizes.IEEE2017-01-11T11:26:33Z2016-01-01T00:00:00Z20162019-04-10T12:08:17Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10071/12324eng1070-990810.1109/LSP.2016.2576640Souto, N.Ribeiro, M.Sebastião, P.info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:50:51Zoai:repositorio.iscte-iul.pt:10071/12324Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:25:08.792137Repositório 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 Semidefinite relaxations for MIMO transmissions with high-order QAM constellations
title Semidefinite relaxations for MIMO transmissions with high-order QAM constellations
spellingShingle Semidefinite relaxations for MIMO transmissions with high-order QAM constellations
Souto, N.
MIMO detection
QAM constellations
Semidefinite relaxation
title_short Semidefinite relaxations for MIMO transmissions with high-order QAM constellations
title_full Semidefinite relaxations for MIMO transmissions with high-order QAM constellations
title_fullStr Semidefinite relaxations for MIMO transmissions with high-order QAM constellations
title_full_unstemmed Semidefinite relaxations for MIMO transmissions with high-order QAM constellations
title_sort Semidefinite relaxations for MIMO transmissions with high-order QAM constellations
author Souto, N.
author_facet Souto, N.
Ribeiro, M.
Sebastião, P.
author_role author
author2 Ribeiro, M.
Sebastião, P.
author2_role author
author
dc.contributor.author.fl_str_mv Souto, N.
Ribeiro, M.
Sebastião, P.
dc.subject.por.fl_str_mv MIMO detection
QAM constellations
Semidefinite relaxation
topic MIMO detection
QAM constellations
Semidefinite relaxation
description In this letter, simple semidefinite relaxations are proposed for the detection of high-order quadrature amplitude modulations in multiple-input–multiple-output systems. The detector is based on the addition of several convex and concave quadratic inequality constraints into the maximum-likelihood detector before relaxing the problem into a convex one. Combined with a randomized sampling procedure, it is shown that the performance and worst-case computational complexity of the proposed approach makes it very competitive against existing detectors in large problem sizes.
publishDate 2016
dc.date.none.fl_str_mv 2016-01-01T00:00:00Z
2016
2017-01-11T11:26:33Z
2019-04-10T12:08:17Z
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/10071/12324
url http://hdl.handle.net/10071/12324
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1070-9908
10.1109/LSP.2016.2576640
dc.rights.driver.fl_str_mv info:eu-repo/semantics/embargoedAccess
eu_rights_str_mv embargoedAccess
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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