Graph-Based Resource Allocation for D2D Communications Underlying Cellular Networks in Multiuser Scenario

Table 1

Parameters for simulation.

Parameter	Value
Cell radius	1000 m
The number of channel resources	5
Maximum D2D pair distance	40 m
Maximum transmit power of pieces of cellular UE	23 dBm
Maximum transmit power of D2D transmitters	23 dBm
Maximum received power PRmax	−106 dBm
Noise power	−174 dBm
SINR threshold of cellular links SINRthre	6 dB
Interference threshold of D2D communications	−90 dBm