What does V2X involve?Vehicles must interact with other vehicles, pedestrians and their environment. They do this through connectivity. This connectivity comes from the interoperability of a vehicle’s own system with other systems external to it. The established standard for doing this is known as dedicated short range communications, or DSRC, which is a variant of Wi-Fi that is designed to work regardless of weather conditions or technical issues. In Europe, this is known as IEEE 802.11p. Now there is a competing standard, known as C-V2X, which stands for cellular V2X. This offers improved capacity, reliability and performance. Fundamental to both systems are high relative speeds, low latency and performance that is safety-critical. Therefore, while V2X offers advanced capabilities for autonomous vehicles, it also presents certain challenges.
What are the challenges to V2X?Vehicle-to-everything communication faces challenges on three fronts: