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Article: Throughput maximization in linear multiuser MIMO-OFDM downlink systems

TitleThroughput maximization in linear multiuser MIMO-OFDM downlink systems
Authors
KeywordsBeamforming
Multiple-input multiple-output (MIMO)
Multiuser communication
Orthogonal frequency-division multiplexing (OFDM)
Throughput
Issue Date2008
PublisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=25
Citation
Ieee Transactions On Vehicular Technology, 2008, v. 57 n. 3, p. 1993-1998 How to Cite?
AbstractIn this paper, we study the problem of maximizing the throughput of a multiuser multiple-input-multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) system in the downlink with a total power constraint using a beamforming approach. An iterative algorithm that takes turns to optimize, jointly among users, the power allocation in the downlink, the transmit and the receive beamforming antenna vectors, and the power allocation in the virtual uplink is proposed. The algorithm is proved to converge, and the throughput increases from one iteration to the next. In addition to the total power constraint, the proposed algorithm is also capable of handling individual users' rate constraints. To reduce complexity, a geometric-programming-based power control in the high signal-to-interference-plus-noise ratio (SINR) region and an orthogonal frequency-division multiple-access scheme in the low SINR region are proposed. Numerical results illustrate that the proposed algorithm significantly outperforms the generalized zero-forcing (GZF) approach. © 2008 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/57496
ISSN
2015 Impact Factor: 2.243
2015 SCImago Journal Rankings: 1.203
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZheng, Gen_HK
dc.contributor.authorWong, KKen_HK
dc.contributor.authorNg, TSen_HK
dc.date.accessioned2010-04-12T01:38:01Z-
dc.date.available2010-04-12T01:38:01Z-
dc.date.issued2008en_HK
dc.identifier.citationIeee Transactions On Vehicular Technology, 2008, v. 57 n. 3, p. 1993-1998en_HK
dc.identifier.issn0018-9545en_HK
dc.identifier.urihttp://hdl.handle.net/10722/57496-
dc.description.abstractIn this paper, we study the problem of maximizing the throughput of a multiuser multiple-input-multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) system in the downlink with a total power constraint using a beamforming approach. An iterative algorithm that takes turns to optimize, jointly among users, the power allocation in the downlink, the transmit and the receive beamforming antenna vectors, and the power allocation in the virtual uplink is proposed. The algorithm is proved to converge, and the throughput increases from one iteration to the next. In addition to the total power constraint, the proposed algorithm is also capable of handling individual users' rate constraints. To reduce complexity, a geometric-programming-based power control in the high signal-to-interference-plus-noise ratio (SINR) region and an orthogonal frequency-division multiple-access scheme in the low SINR region are proposed. Numerical results illustrate that the proposed algorithm significantly outperforms the generalized zero-forcing (GZF) approach. © 2008 IEEE.en_HK
dc.languageengen_HK
dc.publisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=25en_HK
dc.relation.ispartofIEEE Transactions on Vehicular Technologyen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.subjectBeamformingen_HK
dc.subjectMultiple-input multiple-output (MIMO)en_HK
dc.subjectMultiuser communicationen_HK
dc.subjectOrthogonal frequency-division multiplexing (OFDM)en_HK
dc.subjectThroughputen_HK
dc.titleThroughput maximization in linear multiuser MIMO-OFDM downlink systemsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0018-9545&volume=57&issue=3&spage=1993&epage=1998&date=2008&atitle=Throughput+maximization+in+linear+multiuser+MIMO-OFDM+downlink+systemsen_HK
dc.identifier.emailNg, TS:tsng@eee.hku.hken_HK
dc.identifier.authorityNg, TS=rp00159en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/TVT.2007.909273en_HK
dc.identifier.scopuseid_2-s2.0-44849116633en_HK
dc.identifier.hkuros152266-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-44849116633&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume57en_HK
dc.identifier.issue3en_HK
dc.identifier.spage1993en_HK
dc.identifier.epage1998en_HK
dc.identifier.isiWOS:000256026100064-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridZheng, G=16176882900en_HK
dc.identifier.scopusauthoridWong, KK=7404759940en_HK
dc.identifier.scopusauthoridNg, TS=7402229975en_HK

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