Adaptive vector quantization in SVD MIMO system backward link with limited number of active sub channels

Abstract

This paper presents combination of Channel Optimized Vector Quantization based on LBG algorithm and sub channel power allocation for MIMO systems with Singular Value Decomposition and limited number of active sub channels. Proposed algorithm is designed to enable maximal throughput with bit error rate bellow some tar- get level in case of backward channel capacity limitation. Presence of errors effect in backward channel is also considered.

Keywords

• MIMO systems
• space-time coding
• vector quantization