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A Programmable Lattice-Reduction Aided Detector for MIMO-OFDMA
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Computer Engineering.
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Computer Engineering.
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Computer Engineering.
2008 (English)In: 4th IEEE International Conference on Circuits and Systems, ICCSC,2008, IEEE , 2008, 293-297 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents the first programmable Lattice- Reduction Aided (LRA) symbol detector for Multiple-Input Multiple-Output (MIMO) and Orthogonal Frequency Division Multiple Access (OFDMA). The detector proposed is implemented using 65 nm ASIC technologies. Owing to the programmability, the detector can be dynamically switched between linear (e.g. MMSE) and lattice-reduction aided (e.g. LRA-MMSE) detectors by simply running another software subroutine. Therefore, it allows a good trade-off between performance and computational latency to be achieved under various scenarios. Along with the hardware, two algorithm simplifications (SCNT-LR and SOT-LR) are proposed for finding subcarriers with ill- conditioned channel matrices. And in the end, interpolated LR (I- LR) is proposed to further reduce the computational complexity for real-time implementations.

Place, publisher, year, edition, pages
IEEE , 2008. 293-297 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-42762DOI: 10.1109/ICCSC.2008.68Local ID: 68619ISBN: 978-1-4244-1708-7 (print)ISBN: 978-1-4244-1707-0 (print)OAI: oai:DiVA.org:liu-42762DiVA: diva2:263619
Conference
2008 4th IEEE International Conference on Circuits and Systems for Communications, ICCSC; Shanghai; China
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2014-08-15

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Wu, DiEilert, JohanLiu, Dake

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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