Table 1 Simulation parameters
Parameter | Highway | Urban |
|---|---|---|
Road segment length | 1 km | 430 m |
Num. of horizontal segments | – | 3 |
Num. of vertical segments | – | 3 |
Lane width | 5 m | 5 m |
Num. of lanes per direction | 4 | 1 |
Wireless comm. range | 150 m | 150 m |
Vehicle speed | [60, 90, 110, 120] km/h | [40–60] km/h |
Packet size | 500 bytes | 500 bytes |
Data rate | 12 Mbps | 12 Mbps |
TX power | 23 dBm | 23 dBm |
SNR threshold | 15 dB | 15 dB |
Broadcast rate | 10 MHz | 10 MHz |
Slots per frame | 100 | 100 |
Slot width | 1 ms | 1 ms |
Contention window size | 0.2 ms (10 backoff units) | 0.2 ms (10 backoff units) |
Number of vehicles | 50–400 | 50–650 |
Number of RSUs | 0 | 0 |
Simulation time | 2 min | 2 min |