Limited Feedback Multiuser MIMO Techniques for Time-Correlated Channels

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorZacarías, Eduardo
dc.contributor.authorWerner, Stefan
dc.contributor.authorWichman, Risto
dc.date.accessioned2017-10-13T10:32:22Z
dc.date.available2017-10-13T10:32:22Z
dc.date.issued2009
dc.description.abstractThis work presents limited feedback schemes for closed-loop multiple-input multiple-output systems using frequency division duplex. The proposed methods employ compact feedback messages in order to (a) feed back and track a complete frequency-flat channel matrix, to be used as input to multiuser multiplexing methods designed for full channel side information (CSI) at the transmitter, and (b) enable the receiver to command the transmit weight adaptation, in order to maximize the link reliability under strong intercell interference. Simulations show that the channel feedback accuracy provided by the proposed algorithms produces a negligible bit error probability (BEP) performance loss in low mobility scenarios compared to the full CSI performance, and that the proposed interference rejection techniques can effectively exploit an estimate of the interference statistics in order to enable multiple-stream communications under the permanent presence of intercell interference signals.en
dc.description.versionPeer revieweden
dc.format.extent1-21
dc.format.mimetypeapplication/pdf
dc.identifier.citationZacarías , E , Werner , S & Wichman , R 2009 , ' Limited Feedback Multiuser MIMO Techniques for Time-Correlated Channels ' , Eurasip Journal on Advances in Signal Processing , vol. 2009 , no. December , 104950 , pp. 1-21 . https://doi.org/10.1155/2009/104950en
dc.identifier.doi10.1155/2009/104950
dc.identifier.issn1687-6180
dc.identifier.otherPURE UUID: 2a0397e1-9dde-4763-a752-d2c04654868b
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/2a0397e1-9dde-4763-a752-d2c04654868b
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/14856946/10.1155_2009_104950.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/28138
dc.identifier.urnURN:NBN:fi:aalto-201710136999
dc.language.isoenen
dc.relation.ispartofseriesEURASIP Journal on Advances in Signal Processingen
dc.relation.ispartofseriesVolume 2009, issue Decemberen
dc.rightsopenAccessen
dc.titleLimited Feedback Multiuser MIMO Techniques for Time-Correlated Channelsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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