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dc.contributor.authorSun, Yang
Cavallaro, Joseph R. 2012-06-22T20:33:32Z 2012-06-22T20:33:32Z 2012-05-01
dc.identifier.citation Y. Sun and J. R. Cavallaro, "Trellis-Search Based Soft-Input Soft-Output MIMO Detector: Algorithm and VLSI Architecture," IEEE Transactions on Signal Processing, vol. 60, no. 5, 2012.
dc.identifier.other 10.1109/TSP.2012.2187646
dc.description.abstract In this paper, we propose a trellis-search based soft-input soft-output detection algorithm and its very large scale integration (VLSI) architecture for iterative multiple-input multiple-output (MIMO) receivers. We construct a trellis diagram to represent the search space of a transmitted MIMO signal. With the trellis model, we evenly distribute the workload of candidates searching among multiple trellis nodes for parallel processing. The search complexity is significantly reduced because the number of candidates is greatly limited at each trellis node. By leveraging the trellis structure, we develop an approximate Log-MAP algorithm by using a small list of largest exponential terms to compute the LLR (log-likelihood ratio) values. The trellis-search based detector has a fixed-complexity and is very suitable for parallel VLSI implementation. As a case study, we have designed and synthesized a trellis-search based soft-input soft-output MIMO detector for a 4 4 16-QAM system using a 1.08 V TSMC 65 nm technology. The detector can achieve a maximum throughput of 1.7 Gb/s with a core area of 1.58 mm.
dc.language.iso eng
dc.publisher IEEE
MIMO algorithm
Soft-input soft-output
MIMO detection
Trellis-search algorithm
dc.title Trellis-Search Based Soft-Input Soft-Output MIMO Detector: Algorithm and VLSI Architecture
dc.type Journal article
dc.citation.journalTitle IEEE Transactions on Signal Processing Center for Multimedia Communication
dc.citation.volumeNumber 60
dc.citation.issueNumber 5
dc.type.dcmi Text
dc.type.dcmi Text
dc.citation.firstpage 2617
dc.citation.lastpage 2627

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  • CMC Publications [268]
    Publications by Rice Faculty and graduate students in multimedia communications
  • ECE Publications [1225]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students

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