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VLSI implementation issues of lattice decoders for MIMO systems

Author

  • Zhan Guo
  • Peter Nilsson

Summary, in English

Lattice decoders for MIMO systems, including the sphere decoder (SD) and the Schnorr-Euchner (SE) decoder, have been shown to approach the performance of Maximum-likelihood decoder with low complexity. There are three kinds of lattice decoder, sequential SD, K-best SD and sequential SE, which are popular in the literature. As a modification to the K-best SD, a lower complexity K-best SE is proposed in this paper. Furthermore, the K-best SE is shown to be a more suitable choice for VLSI implementation than the other decoders due to its low complexity in fixed-point implementation

Publishing year

2004

Language

English

Pages

477-480

Publication/Series

2004 IEEE International Symposium on Circuits and Systems

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • MIMO systems
  • Schnorr-Euchner decoder
  • fixed point implementation
  • lattice decoders
  • maximum likelihood decoder
  • sphere decoder
  • VLSI implementation

Conference name

2004 IEEE International Symposium on Circuits and Systems

Conference date

2004-05-23 - 2004-05-26

Conference place

Vancouver, BC, Canada

Status

Published

Research group

  • Elektronikkonstruktion

ISBN/ISSN/Other

  • ISBN: 0-7803-8251-X