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Table 6 Complexities (FLOPs) of four schemes in Fig. 6 with M=64,N=12,L=4, and K=20

From: A low-complexity 3D massive MIMO scheme jointly using statistical and instantaneous CSIT

G 4 8 16 32 64
All groups 4.81×107 2.87×107 2.01×107 1.59×107 1.39×107
Proposal 3.62×107 1.83×107 1.39×107 1.26×107 1.22×107
One group 2.04×107 1.46×107 1.30×107 1.24×107 1.22×107
Generalized MRT 5.29×106 5.29×106 5.29×106 5.29×106 5.29×106