Transmit equal gain beamforming using lattice quantizers

Shang-Ho Tsai*, Gene Chuang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We investigate the use of lattices in phase quantizers and equal gain beamformers. We propose proper scaling methods so that the Voronoi regions of all lattice points are regular in the phase quantizers. As a result, existing fast algorithm for various lattices can be applied directly. In addition, we derive the number B of quantization bits with the proposed scaling. We found that the proposed scaling leads to efficient quantization bits. Some of the proposed scaling can even achieve integer B. Moreover, we analyze the mean square error for the proposed phase quantizers. Simulation results corroborate the theoretical results.

Original languageEnglish
Title of host publication2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings
DOIs
StatePublished - 3 Aug 2010
EventIEEE Wireless Communications and Networking Conference 2010, WCNC 2010 - Sydney, NSW, Australia
Duration: 18 Apr 201021 Apr 2010

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)1525-3511

Conference

ConferenceIEEE Wireless Communications and Networking Conference 2010, WCNC 2010
CountryAustralia
CitySydney, NSW
Period18/04/1021/04/10

Keywords

  • Beamforming
  • EGT
  • Equal gain
  • Grassmannian
  • Lattice
  • Limited feedback
  • MIMO
  • Phase quantization
  • Precoding

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  • Cite this

    Tsai, S-H., & Chuang, G. (2010). Transmit equal gain beamforming using lattice quantizers. In 2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings [5506567] (IEEE Wireless Communications and Networking Conference, WCNC). https://doi.org/10.1109/WCNC.2010.5506567