Impact of Vehicular Obstructions in Vehicle-to-vehicle Communication Scenarios

摘要

IEEE 802.11p is designed to be a promising DSRC standard that supporting low latency and high reliability for vehicle-to-vehicle communication. However, whether the novel protocol can be applied to real traffic in vehicular obstruction environments still remains to be studied. This paper proposes a vehicle-to-vehicle communication system and tests the performance of the system in unobstructed, light vehicle and heavy vehicle obstructed scenarios. Used four different size vehicles equipped with IEEE 802.11p based device to construct a vehicle-to-vehicle communication platform. RSSI, latency and packet delivery ratio were collected in different obstructed scenarios. Test results show that vehicular obstruction does a negative impact on IEEE 802.11p performance when the distance between two communicating nodes is less than 200 meters. When the communicating distance is longer than 200 meters, the performance in LOS (Line-of-sight) and vehicular obstruction scenarios has no big difference.