University of Sao Paulo
In this paper, the asymptotic performance of a precoded Bit-Interleaved Coded Modulation with Multiple-Input Multiple-Output (BICM-MIMO) system in a block-fading environment is first evaluated. Specifically, the asymptotic pairwise error probability is derived for imperfect Channel State Information (CSI) and of the Minimum Mean Squared-Error (MMSE) detector. The analysis is then used to evaluate the impact of two different training schemes. It is shown that inserting training symbols before precoder is a better option than multiplexing training symbols with data symbols after the precoder.