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Table 3 The ratio of spectral efficiency and implementation complexity of the proposed BF to those of the ZFBF

From: Massive MIMO signal transmission in spatially correlated channel environments

N   0 (%) 1 (%) 2 (%) 3 (%) 4 (%) 5 (%) 6 (%) 7 (%)
Spectral efficiency ρ=0.9 60 73 81 87 92 95 99 100
  ρ=0 60 73 81 87 92 95 99 100
FLOPs   0.04 0.38 1.25 3.04 6.11 10.82 17.53 26.59