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25-09-2021 Cognitive Radio

Q. What is a radio environment map?

A. Radio environment map represents a collection of access points in the immediate vicinity
B. Radio environment map provides insight on radio environment over multiple domains such as regulation and frequency emission
C. Radio environment map represents cognitive radios in the immediate vicinity
D. Radio environment map represents cognitive radios participating in cooperative sensing


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Dapzoi Verified
Commented on 2021-09-25 14:29:11 (IST)
Answer: B

Explanation: Radio environment map provides an abstraction of real time radio environment. It defines the radio environment of cognitive radio using multiple characteristic features such as geographical conditions, regulation, policy, capability of radio equipment, and radiofrequency emissions.