Reflected simplex codebooks for limited feedback MIMO beamforming

Authors:
Daniel J. Ryan;Iain B. Collings;Jean-Marc Valin
Affiliations:
Dept. of Electronics & Telecommunications., Norwegian University of Science and Technology, Norway;Wireless Telecommunications Laboratory, CSIRO ICT Centre, Australia;Octasic Semiconductor, Quebec, Canada
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

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Abstract

This paper proposes Reflected Simplex codebooks for limited feedback beamforming in multiple-input multiple-output (MIMO) wireless systems. The codebooks are a geometric construction based on simplices and the An lattice. We propose a fast codebook search and indexing algorithm. We show that such codebooks perform superior or comparable to other codebooks, with much lower implementation complexity.