Figure 1:

Figure 2:

Nomenclature and abbreviations_
| SINR | Signal to interference plus noise ratio |
| D2D | Device to device |
| MU | Mobile user |
| Rc | Data rate of channel |
| Variance of Additive White Gaussian Noise (AWGN) | |
| R and TH | Rate and throughput |
| Data arrival at D2D transmitter | |
| Q | Queue length |