Low-complexity hybrid precoding for multi-user massive MIMO systems: a hybrid EGT/ZF approach.

Massive multiple-input multiple-output (MIMO) systems bring manifold improvements in the system spectral efficiency but result in high hardware and processing complexity at the base station. Employing hybrid precoding at the base station can reduce such complexity. In this study, unlike most existing work on hybrid precoding design, the authors consider a sub-connected analogue combining structure...