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25-09-2021 Cognitive Radio

Q. Which among the following statements is false about a radio operating with the radio environment map?

A. Aware of application layer operations
B. Aware of physical layer operations
C. Awareness of performance metrics
D. Incompatibility with underlying radio access technology


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Dapzoi Verified
Commented on 2021-09-25 14:30:52 (IST)
Answer: D

Explanation: Radio environment map enables a radio to be aware of performance metrics such as data rate, spectral efficiency, etc. A radio with a radio environment map is comprehensive of each layer of protocol stack under different and varying radio environments. Radio environment map is compatible with underlying radio access technology regardless of the cognition capability of user radio.