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Optimized Gauss and Cholesky algorithms for using the LMMSE decoder in MIMO/BLAST systems with frequency-selective channels - Reduced-complexity equalization

2006Conference object Open access
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dc.contributor.authorSilva, J. C.
dc.contributor.authorSouto, N.
dc.contributor.authorCercas, F.
dc.contributor.authorRodrigues, A.
dc.contributor.authorDinis, Rui
dc.contributor.authorJesus, S. M.
dc.date.accessioned2015-12-15T15:51:26Z
dc.date.available2015-12-15T15:51:26Z
dc.date.issued2006
dc.description.abstractThe LMMSE (Linear Minimum Mean Square Error) algorithm is one of the best linear receivers for DSCDMA (Direct Sequence-Code Division Multiple Access). However, for the case of MIMO/BLAST (Multiple Input, Multiple Output/Bell Laboratories Layered Space Time), the perceived complexity of the LMMSE receiver is taken as too big, and thus other types of receivers are employed, yielding worse results. In this paper, we investigate the complexity of the solution to the LMMSE and the Zero-Forcing (LMMSE without noise estimation) receiver's equations. It will be shown that the equation can be solved with optimized Gauss or Cholesky algorithms. Some of those solutions are very computationally efficient and thus, allow for the usage of the LMMSE in fully-loaded MIMO systems.
dc.identifier.isbn972-8865-65-1
dc.identifier.otherAUT: SJE00662;
dc.identifier.urihttp://hdl.handle.net/10400.1/7352
dc.language.isoeng
dc.peerreviewedyes
dc.publisherInstitute for Systems and Technologies of Information, Control and Communication
dc.relation.isbasedonP-004-QX1
dc.titleOptimized Gauss and Cholesky algorithms for using the LMMSE decoder in MIMO/BLAST systems with frequency-selective channels - Reduced-complexity equalization
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceSetúbal, PORTUGAL
oaire.citation.endPage207
oaire.citation.startPage200
oaire.citation.titleInternational Conference on Wireless Information Networks and Systems
person.familyNameRodrigues
person.familyNameJesus
person.givenNameAna Maria
person.givenNameSergio
person.identifier.orcid0000-0001-7207-3143
person.identifier.orcid0000-0002-6021-1761
person.identifier.scopus-author-id7003729485
rcaap.rightsopenAccess
rcaap.typeconferenceObject
relation.isAuthorOfPublication45d07888-40a6-47cd-8769-ca71da551513
relation.isAuthorOfPublicatione0226ece-3767-4beb-ab80-868e8897c14a
relation.isAuthorOfPublication.latestForDiscovery45d07888-40a6-47cd-8769-ca71da551513

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