Research Article
Energy-Efficient Multicast Transmission for Underlay Device-to-Device Communications: A Social-Aware Perspective
Table 1
The simulation parameters.
| | Parameter | Value |
| | Cell radius | 400 m | | Total UE number () | 500, 1000 | | Spectrum bandwidth | 10 MHz | | Bandwidth of each channel | 180 KHz | | Path loss factor () | 4 | | Shadowing | Log-normal fading
with standard deviation of 8 dB | | Noise power spectrum density () | −174 dBm/Hz | | Minimum SINR threshold () | 10 dB | | Maximum transmit power of UE () | CUE: 23 dBm
DUE: 20 dBm | | Number of D2D groups () | 8 | | Weight coefficient () | | | Social threshold () | 1 | | D2D group radius () | 30~90 m | | UE transmission range | 90 m |
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