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Conference Paper: Optimal multi-user MISO solution with application to multi-user orthogonal space division multiplexing

TitleOptimal multi-user MISO solution with application to multi-user orthogonal space division multiplexing
Authors
KeywordsTransportation
Automobiles
Issue Date2003
PublisherIEEE.
Citation
Ieee Vehicular Technology Conference, 2003, v. 57 n. 1, p. 262-266 How to Cite?
AbstractIn this paper, we shall show that for a nT-element base station (BS) communicating with M(≤ nT) single-element mobile stations (MS) (or multi-user MISO) orthogonally in the spatial domain, the optimization problem is equivalent to the least squares (LS) problem for an underdetermined linear system. We then prove that the optimal BS antenna weights can be expressed as the pseudo-inverse of the multi-user channel matrix. This solution decomposes the multi-user system into many single-user systems with maximal resultant channel responses. The average of the squared channel response (defined as channel gain) and the inverse of the normalized variance of the squared channel response (defined as diversity order) are derived for performance analysis. It is found that every individual user of the resulting system behaves like a single-user system with nT-M+1 reception diversity. Finally, by applying the solution on a multi-user MIMO antenna system (i.e., with multiple antennas at the MS as well), an iterative approach is proposed to perform multi-user orthogonal space division multiplexing (OSDM) in the downlink.
Persistent Identifierhttp://hdl.handle.net/10722/46363
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorPan, Zen_HK
dc.contributor.authorWong, KKen_HK
dc.contributor.authorNg, TSen_HK
dc.date.accessioned2007-10-30T06:48:12Z-
dc.date.available2007-10-30T06:48:12Z-
dc.date.issued2003en_HK
dc.identifier.citationIeee Vehicular Technology Conference, 2003, v. 57 n. 1, p. 262-266en_HK
dc.identifier.issn0740-0551en_HK
dc.identifier.urihttp://hdl.handle.net/10722/46363-
dc.description.abstractIn this paper, we shall show that for a nT-element base station (BS) communicating with M(≤ nT) single-element mobile stations (MS) (or multi-user MISO) orthogonally in the spatial domain, the optimization problem is equivalent to the least squares (LS) problem for an underdetermined linear system. We then prove that the optimal BS antenna weights can be expressed as the pseudo-inverse of the multi-user channel matrix. This solution decomposes the multi-user system into many single-user systems with maximal resultant channel responses. The average of the squared channel response (defined as channel gain) and the inverse of the normalized variance of the squared channel response (defined as diversity order) are derived for performance analysis. It is found that every individual user of the resulting system behaves like a single-user system with nT-M+1 reception diversity. Finally, by applying the solution on a multi-user MIMO antenna system (i.e., with multiple antennas at the MS as well), an iterative approach is proposed to perform multi-user orthogonal space division multiplexing (OSDM) in the downlink.en_HK
dc.format.extent331718 bytes-
dc.format.extent2806 bytes-
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dc.format.extent21377 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.format.mimetypetext/plain-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofIEEE Vehicular Technology Conferenceen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2003 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.subjectTransportationen_HK
dc.subjectAutomobilesen_HK
dc.titleOptimal multi-user MISO solution with application to multi-user orthogonal space division multiplexingen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1550-2252&volume=1&spage=262&epage=266&date=2003&atitle=Optimal+multi-user+MISO+solution+with+application+to+multi-user+orthogonal+space+division+multiplexingen_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.scopuseid_2-s2.0-0041471042en_HK
dc.identifier.hkuros81540-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0041471042&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume57en_HK
dc.identifier.issue1en_HK
dc.identifier.spage262en_HK
dc.identifier.epage266en_HK
dc.identifier.scopusauthoridPan, Z=7402644862en_HK
dc.identifier.scopusauthoridWong, KK=7404759940en_HK
dc.identifier.scopusauthoridNg, TS=7402229975en_HK

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