Table 2 Simulation parameters

Number of transmit antennas N _t

4

Number of receive antennas N _r

1

Carrier frequency f _c

2.5 GHz

Macro BS antenna height

above mean rooftop level Δ h _{B S}

20 m

# of MUE per sector

1

# of FUE per femtocell

1

Macro BS transmit power

46 dBm

Macrocell radius

1000 m

Femtocell radius

10 m

Power spectral density of noise

−174 dBm/Hz

Bandwidth

10 MHz