QAM codebooks for low-complexity limited feedback MIMO beamforming

Daniel J. Ryan*, I. Vaughan L. Clarkson, Iain B. Collings, Dongning Guo, Michael L Honig

*Corresponding author for this work

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

17 Scopus citations

Abstract

This paper proposes a new QAM based codebook for beamforming in multiple-input multiple-output (MIMO) wireless systems with a limited-rate feedback channel. We show that such codebooks perform arbitrarily close to the perfect feedback case as the constellation size increases, and that full diversity order is achieved. We demonstrate an equivalence between the problems of beamforming codebook search and noncoherent sequence detection. Based on this we propose a fast beamforming vector search algorithm. Monte-Carlo simulations are presented to show that the performance is comparable to the best known codebooks, and that the search complexity can be reduced by several orders of magnitude.

Original languageEnglish (US)
Title of host publication2007 IEEE International Conference on Communications, ICC'07
Pages4162-4167
Number of pages6
DOIs
StatePublished - Dec 1 2007
Event2007 IEEE International Conference on Communications, ICC'07 - Glasgow, Scotland, United Kingdom
Duration: Jun 24 2007Jun 28 2007

Other

Other2007 IEEE International Conference on Communications, ICC'07
CountryUnited Kingdom
CityGlasgow, Scotland
Period6/24/076/28/07

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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