Comparative Study on the protocols used by autonomous car,DSRC, C-V2X, 5G

The autonomous car has been in the headlines for a decade and still continues to dominate auto headlines The autonomous car has attracted the researchers, robotics communities and the automobile industries, an autonomous car is a vehicle capable of detecting its environment and driving without human intervention, A human passenger is not required to take control of the vehicle at all times, nor is a human passenger to be present at all in the vehicle, the autonomous car can go wherever a traditional car goes and do whatever a experienced human driver made, the development of autonomous vehicles requires communication between cars and infrastructure, this communication is based on protocols allowing the exchange of information we can cite the Dedicated Short Range Communication (DSRC) protocol, Cellular V2X technology (C-V2X) LTE-V2X and 5G which presents the next generation of communication allowing the exchange of very large volumes of data also participating in the development of the autonomous car ,the paper presents a comparative study of the different protocols used by the autonomous car.