Performance Comparison of Different Golden Code Detectors

The full rate, full rank golden code showed to overcome all previous codes in (2 x 2) multiple input multiple output (MIMO) uncoded system when decoded with maximum- likelihood (ML) detectors. Therefore, its efficiency motivates us to study the code performance with suboptimal detectors, precisely two detectors based on decision feedback equalizer (DFE) detection. The first one is a DFE detector with preprocessing stage based minimum mean square error generalized DFE (MMSE-GDFE), Lattice reduction (LR) and Vertical-Bell Labs layered space-time (V-BLAST) greedy ordering. The second one is the enhanced maximum a posteriori DFE (E-MAP-DFE) detector. To extend the study for coded systems, other soft output algorithms are presented based on the first detection stage. The key idea of these algorithms is to provide candidate lists for more reliable detection. So, in this context, simulations were carried out to compare the detectors´ performance.