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Table 2 The running time of five schemes (unit, second)

From: Multi-user hybrid precoding for mmWave massive MIMO systems with sub-connected structure

K 2 4 6 8 10 12
DPC FC 0.0444 0.0723 0.0933 0.1165 0.1289 0.1457
HyEB FC 0.0791 0.1224 0.1331 0.1451 0.1534 0.1623
SIC-BD SC 0.0342 0.0435 0.0594 0.0814 0.0926 0.1124
Full-Analog 0.0119 0.0173 0.0182 0.0196 0.0213 0.0278
Proposed SC 0.0387 0.0460 0.0632 0.0896 0.0949 0.1235