Table 1 Simulation parameters

Bandwidth

10 MHz

Number of subcarriers

2,048

Thermal noise density

-174 dBm/Hz

Number of macro BSs

1

Mobile users within macro range

6∼30

Number of RRH BSs

1

Mobile users within RRH range

6∼30

MBS transmit power

46 dBm

MUE distribution radius

289 m

RRH node transmit power

30 dBm

Codebook size

32, 64

Codebook cluster size

4, 8

Macro path loss model

128.1 + 37.6 log10(R) dB (R in km)

RRH path loss model

140.7 + 36.7 log10(R) dB (R in km)

Distance MBS-RRH node

200 m

Minimum distance MBS-macro user

35 m

Minimum distance RRH node-RRH user

10 m

Scheduler

Proportional fairness