Uplink Multiuser MIMO Detection Scheme with Reduced Computational Complexity

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dc.contributor.authorCho, Soobum
dc.contributor.authorPark, Sang Kyu
dc.coverage.issue1cs
dc.coverage.volume24cs
dc.date.accessioned2015-05-21T11:30:50Z
dc.date.available2015-05-21T11:30:50Z
dc.date.issued2015-04cs
dc.description.abstractThe wireless communication systems with multiple antennas have recently received significant attention due to their higher capacity and better immunity to fading channels as compared to single antenna systems. A fast antenna selection scheme has been introduced for the uplink multiuser multiple-input multiple-output (MIMO) detection to achieve diversity gains, but the computational complexity of the fast antenna selection scheme in multiuser systems is very high due to repetitive pseudo-inversion computations. In this paper, a new uplink multiuser detection scheme is proposed adopting a switch-and-examine combining (SEC) scheme and the Cholesky decomposition to solve the computational complexity problem. K users are considered that each users is equipped with two transmit antennas for Alamouti space-time block code (STBC) over wireless Rayleigh fading channels. Simulation results show that the computational complexity of the proposed scheme is much lower than the systems with exhaustive and fast antenna selection, while the proposed scheme does not experience the degradations of bit error rate (BER) performances.en
dc.formattextcs
dc.format.extent98-104cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2015 vol. 24, č. 1, s. 98-104. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2015.0098en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/38738
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2015/15_01_0098_0104.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectCholesky decompositionen
dc.subjectfast antenna selectionen
dc.subjectmultiuser MIMOen
dc.subjectSECen
dc.subjectSTBCen
dc.titleUplink Multiuser MIMO Detection Scheme with Reduced Computational Complexityen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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