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 proceeding contributionpeer-review

17 Citations (Scopus)

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
Title of host publication2007 IEEE International Conference on Communications, ICC'07
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages4162-4167
Number of pages6
ISBN (Print)1424403537, 9781424403530
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2007 IEEE International Conference on Communications, ICC'07 - Glasgow, Scotland, United Kingdom
Duration: 24 Jun 200728 Jun 2007

Other

Other2007 IEEE International Conference on Communications, ICC'07
CountryUnited Kingdom
CityGlasgow, Scotland
Period24/06/0728/06/07

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