An Efficient Circulant MIMO Equalizer for CDMA Downlink: Algorithm and VLSI Architecture

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dc.citation.firstpage1en_US
dc.citation.issueNumberArticle ID 57134en_US
dc.citation.journalTitleEURASIP Journal on Applied Signal Processingen_US
dc.citation.lastpage18en_US
dc.citation.volumeNumber2006en_US
dc.contributor.authorGuo, Yuanbinen_US
dc.contributor.authorZhang, Jianzhongen_US
dc.contributor.authorMcCain, Dennisen_US
dc.contributor.authorCavallaro, Joseph R.en_US
dc.contributor.orgCenter for Multimedia Communicationen_US
dc.date.accessioned2012-06-04T21:07:58Zen_US
dc.date.available2012-06-04T21:07:58Zen_US
dc.date.issued2006-02-01en_US
dc.description.abstractWe present an efficient circulant approximation-based MIMO equalizer architecture for the CDMA downlink. This reduces the direct matrix inverse (DMI) of size (NF×NF) with O((NF)3) complexity to some FFT operations with O(NF log2(F)) complexity and the inverse of some (N×N) submatrices.We then propose parallel and pipelined VLSI architectures with Hermitian optimization and reduced-state FFT for further complexity optimization. Generic VLSI architectures are derived for the (4×4) high-order receiver from partitioned (2 × 2) submatrices. This leads to more parallel VLSI design with 3× further complexity reduction. Comparative study with both the conjugate-gradient and DMI algorithms shows very promising performance/complexity tradeoff. VLSI design space in terms of area/time efficiency is explored extensively for layered parallelism and pipelining with a Catapult C high-level-synthesis methodology.en_US
dc.description.sponsorshipNational Science Foundationen_US
dc.identifier.citationY. Guo, J. Zhang, D. McCain and J. R. Cavallaro, "An Efficient Circulant MIMO Equalizer for CDMA Downlink: Algorithm and VLSI Architecture," <i>EURASIP Journal on Applied Signal Processing,</i> vol. 2006, no. Article ID 57134, 2006.en_US
dc.identifier.doihttp://dx.doi.org/10.1155/ASP/2006/57134en_US
dc.identifier.issn10.1155/ASP/2006/57134en_US
dc.identifier.otherhttp://scholar.google.com/scholar?cluster=9475738772029113561&hl=en&as_sdt=0,44en_US
dc.identifier.urihttps://hdl.handle.net/1911/64215en_US
dc.language.isoengen_US
dc.publisherHindawi Publishing Corporationen_US
dc.subjectMIMOen_US
dc.subjectCDMA downlinken_US
dc.subjectOptimizationen_US
dc.subjectVLSIen_US
dc.titleAn Efficient Circulant MIMO Equalizer for CDMA Downlink: Algorithm and VLSI Architectureen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.dcmiTexten_US
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