Communication Systems (CS)
In this regard, the car phone is really used and used the most, which is popular in developed countries and regions such as the United States, Japan, and Europe, and the current level is constantly improving. In addition to the communication between vehicles, it can also be connected to the international telephone network through satellites to realize international telephone communication, network information exchange, and image transmission during driving. Now with the support of wireless telephone networks, broadband digital signals, Internet networks and other emerging wireless communication technologies in automobiles, people can access information and services anytime, anywhere.