A Quantization Scheme for Lattice-Reduction Aided MIMO Detection

摘要

This paper aims at improving bit error rate (BER) performance of lattice reduction aided (LRA) linear detectors for multiple input multiple output (MIMO) wireless systems. Specifically, we present an improved quantization scheme for LRA detectors which can generate a set of candidate symbols from the original LRA estimated symbol. From these symbols, decisions are made in term of the minimum Euclidean distance. It is shown by simulation that the method provides significant BER performance improvement at the cost of small additional complexity.