To enable vehicle communication, a wireless gateway, also known as the Communication Unit (CU), is introduced in the in-vehicle network. The gateway enables Vehicle-to-Infrastructure (V2I) and Vehicle-to-Vehicle (V2V) communication, collectively known asVehicle-to-X (V2X) communication.
A few different technologies exists for V2I communication. First, roads will be equipped with road-side unit (RSU) by means of which vehicles will establish communication to the infrastructure using the WAVE-protocol. These RSUs provide services to the vehicles, including general Internet access. The second possibility is to use ordinary Wi-Fi technology where wireless access points are used, e.g. open access points in cities. This may prove to be more economical.
(The author is formerly a professor at Department of Electrical Engineering, AMU, Aligarh. He can be reached at firstname.lastname@example.org)
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