Table 4 Comparison of computational complexity of feedback methods. ‘n Bit’ means the compression bit.

From: Joint channel estimation and feedback with masked token transformers in massive MIMO systems

Setting

64 Bit

128 Bit

Method

FLOPs/Params

FLOPs/Params

CsiNet

1.63M/0.217M

1.87M/0.430M

CsiNet+

9.51M/0.236M

9.78M/0.449M

DCRNet

0.99M/0.215M

1.36M/0.429M

EVCsiNet

1.60G/5.18M

1.61G/5.65M

EVCsiNet_T

0.21G/16.67M

0.21G/17.52M

ImCsiNet

0.83G/821M

0.84G/821M

OursCompress

1.53G/9.51M

1.54G/9.55M

JCEF

2.54G/1.47M

2.54G/2.75M