Communication between cars and infrastructure, called car-to-car/infrastructure (C2C/C2I) or vehicle-to-vehicle/infrastructure (V2V/V2I), is the propellant factor in a self-driving transportation on the roads. The main challenges in vehicle communication and sensing are:

• High-Mobility (relative speed differences of up to 300km/h)
• Low-Latency due to short-range (blockage) and fast speeds
• Accurate Radar Positioning
• Asynchronous and sporadic communication
• Multipath Propagation and User Interference