Agglomerative Group Scheduling for MmWave Massive MIMO under Hybrid Beamforming Architecture

Millimeter-wave communication and Massive MIMO are key candidate technologies for 5G and hybrid beamforming is a promising solution to get better trade-off between system performance and hardware complexity. User selection and analog beam selection are two key problems in multi-user Millimeter-wave systems. We focus on the principle of orthogonality and energy maximization, a group-based user scheduling scheme is proposed with agglomerative clustering and beam steering beam selection. Numerical results show that agglomerative grouping scheduling can achieve considerable sum rates with affordable computation complexity.