Which IEEE standard defines wireless access in vehicular environments?
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A. B. C. D.B.
The IEEE standard that defines wireless access in vehicular environments is 802.11p.
802.11p is a standard that is specifically designed to provide wireless access in vehicular environments, such as cars, buses, and trains. This standard operates in the 5.9 GHz frequency band and is also known as Wireless Access in Vehicular Environments (WAVE). The primary goal of this standard is to provide low-latency communication for vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication.
The 802.11af standard, also known as White-Fi, is used for wireless broadband access in TV White Space (TVWS) frequency bands between 54 and 790 MHz. It is designed to utilize the unused portions of the TV spectrum to provide wireless connectivity to underserved areas.
The 802.11k standard, also known as Radio Resource Measurement, is used for radio resource management in wireless networks. This standard provides mechanisms for measuring and reporting radio signal strength, channel utilization, and other parameters that can be used for network optimization.
The 802.11ac standard, also known as Gigabit Wi-Fi, is used for high-speed wireless access in the 5 GHz frequency band. It provides data rates of up to 1 Gbps and is designed to support high-bandwidth applications such as video streaming and online gaming.
In summary, the correct answer to the question is B. 802.11p.