Table 3 Network parameters used in the simulator
From: Open sub-granting radio resources in overlay D2D-based V2V communications
Parameter | Value |
|---|---|
Frequency, fc and BW | 2.6 GHz, 20 MHz |
Number of users | 60 D2I, 40 D2D |
Cell radius | 300 m |
D2D distance (d) | 20 m |
Channel model [18] | UMi-NLOS \(\alpha _c\): 3.67 \(\mu _c:\sigma =4~dB\), Rayleigh InH-NLOS \(\alpha _d\): 4.33 \(\mu _d:\sigma =4~dB\), Rician, K=20 dB |
User velocity | 30Kmph |
Traffic model | Packet size=10B, \(\lambda\)=1ms, \(\epsilon ^{{\mathbb {D}}}_{th}\)=\(10^{-5}\) [1] |
Power control | Open-loop power control [15] D2D (P0 = − 90 dBm/RB) D2I (P0 = − 107 dBm/RB) |
Noise power density (\(\sigma _0\)) | − 174 dBm/Hz |
Noise figure | 5 dB |
MAX UE TX Power | 23 dBm |
D2D and D2I Antenna Gain | 1 dB |
eNB Antenna Gain | 10 dB |
\(\epsilon ^{sg}_{th}\) | \(10^{-3}\) |
Simulation runs \(\left( i\right)\) | 4000 |
\(T_{me}\), \(T_{pos}\), \(T_{br}\) | 480 ms |
\(\beta\) | 0.9 |