Table 2: Key simulation system parameters.

ParametersValue

Carrier frequency2.6 GHz
Inter-eNodeB distance500 m
System bandwidth20 MHz (100 RB)
Antenna mode3 GPP 3D Model
Antenna downtilt15°
Channel modeTypical urban
Maximum eNodeB output power46 dBm
Maximum UE output power23 dBm
Path loss from Macro to UE   (Unit of is km)
Std deviation of shadow fading−8 dB
Penetration loss20 dB
UE density across macrocellsUniform distribution
UE distribution within a macrocellUniform distribution
Service rate of edge users128 kbps (UL), 512 kbps (DL)