Table 1 Codebook parameters

2

[1,2,4,12]

[0.3536 + 0.3536j;

1

0.3536 −0.3536j;

−0.3536−0.3536j;

−0.3536+0.3536j]

3

[1,2,7,6]

[0.2895 + 0.3635j;

0.8282

0.5287 −0.2752j;

−0.2352−0.4247j;

−0.4040+0.1729j]

6

[1,45,22,49]

[0.3954 −0.0738j

0.3935

0.0206 + 0.4326j;

−0.1658−0.5445j;

0.5487 −0.1599j]

8

[1,10,102,177]

[0.4660 + 0.4660j;

0.1733

0.2827 −0.2827j;

−0.1964−0.1964j;

−0.4054+0.4054j]