Displacement MIMO Kalman equalizer architecture for CDMA downlink in fast fading channels

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dc.citation.bibtexNamearticleen_US
dc.citation.journalTitleIEEE Transactions on Wireless Communicationsen_US
dc.contributor.authorGuo, Yuanbinen_US
dc.contributor.authorZhang, Jianzhong (Charlie)en_US
dc.contributor.authorMcCain, Dennisen_US
dc.contributor.authorCavallaro, Joseph R.en_US
dc.contributor.orgCenter for Multimedia Communications (http://cmc.rice.edu/)en_US
dc.date.accessioned2007-10-31T00:46:04Zen_US
dc.date.available2007-10-31T00:46:04Zen_US
dc.date.issued2005-07-01en_US
dc.date.modified2006-02-06en_US
dc.date.submitted2006-02-06en_US
dc.descriptionJournal Paperen_US
dc.description.abstractIn this paper, we explore the displacement structure in a Kalman equalizer for MIMO-CDMA downlink. A streamlined MIMO Kalman equalizer architecture is proposed to extract the commonality in the data path by exploiting the displacement structure of the transition matrix and the block-Toeplitz structure of the channel matrix. Numerical matrix multiplications with O(F^3) complexity are eliminated by simple data loading process. Utilizing the block Toeplitz structure of the channel matrix, an FFT-based acceleration is proposed to avoid direct matrix multiplications in the time domain. Finally, an iterative Conjugate-Gradient based algorithm is proposed to avoid the inversion of the innovation correlation matrix in Kalman gain calculation. The proposed architecture not only reduces the numerical complexity to O(F log2 F) per chip, but also facilitates the parallel and pipelined VLSI implementation for real-time processing.en_US
dc.identifier.citationY. Guo, J. (. Zhang, D. McCain and J. R. Cavallaro, "Displacement MIMO Kalman equalizer architecture for CDMA downlink in fast fading channels," <i>IEEE Transactions on Wireless Communications,</i> 2005.en_US
dc.identifier.doihttp://dx.doi.org/10.1109/GLOCOM.2005.1578070en_US
dc.identifier.urihttps://hdl.handle.net/1911/19932en_US
dc.language.isoengen_US
dc.subjectMIMOen_US
dc.subjectKalman filteren_US
dc.subjectdisplacement structureen_US
dc.subjectFFTen_US
dc.subjectConjugate Gradient.en_US
dc.subject.keywordMIMOen_US
dc.subject.keywordKalman filteren_US
dc.subject.keyworddisplacement structureen_US
dc.subject.keywordFFTen_US
dc.subject.keywordConjugate Gradient.en_US
dc.titleDisplacement MIMO Kalman equalizer architecture for CDMA downlink in fast fading channelsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
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