Fig. 3From: Multi-user hybrid precoding for mmWave massive MIMO systems with sub-connected structureSum rate comparison for different beamforming schemes versus SNR in ULA. It illustrates that the different precoding algorithms simulation results when SNR increases from − 20 to 20 dB. The result under a massive MIMO system with \({N_t} = 128\) is represented by (a), and the result under a MIMO system with \({N_t} = 32\) is represented by (b)Back to article page