Adaptive vector Quantization in SVD MIMO System Backward Link with Limited Number of Active Subchannels

Abstract

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