DSRC for vehicular positioning

Wireless communication technology is the foundation of a vehicle network and can achieve information interaction between vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) technologies. Different communication technologies are applied to suitable application scenarios, such as a low-delay vehicle safety application, a wide range of vehicle group management, and convenient entertainment services. But for vehicle safety application in particular, broadcasting an emergency message requires a low-latency and high-transmission-rate communication network, which is under a high-speed vehicle environment and must adapt to frequent changes in the network topology [96,146].