MMSE DFE for high-rate MIMO transmission over channels with ISI

Minimum mean-squared error decision-feedback equalisation (DFE) for joint spatial/temporal equalisation is derived. No finite length assumptions are made, but asymptotic results, i.e., ultimate limits, are studied. The performance of MMSE DFE for transmission over MIMO ISI channels is assessed by means of numerical simulations for typical high-rate wireless scenarios.