Reflected Simplex Codebooks for Limited Feedback MIMO Beamforming

This paper proposes Reflected Simplex codebooks for limited feedback beamforming in multiple-input multipleoutput (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.

• Type: Journal
• Year: 2009
• Where: ICC
• Authors: Daniel J. Ryan, Iain B. Collings, Jean-Marc Valin
• Keywords: Codebooks, Communications, Fast Codebook Search, ICC 2009, Lower Implementation Complexity