Hybrid Beamforming Grouping Sum-Rate Maximization Algorithm for Multiuser mmWave Massive MIMO Systems

Table 1

Loss of mmWave penetration through different media.

Materials	Thickness (cm)	Penetration loss (dB)
Wood	4.25~28	8.34~15.08
Drywall	6.5~37.25	11.85~53.47
Concrete	19~34.25	31.32~60.11