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25-09-2021 Cognitive Radio

Q. Which among the following is not a prerequisite for cooperative sensing?

A. Non-corrupt neighbouring radios
B. Knowledge of spectrum environment
C. Knowledge of limits of transmission parameters
D. Central entity

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Dapzoi Verified
Commented on 2021-09-25 14:22:46 (IST)
Answer: D

Explanation: Cooperative spectrum sharing involves sharing spectrum usage and noise information to other nodes of the spectrum. This mode considers the operation of other spectrum users thus raising the overall spectrum efficiency of the network. It requires non-corrupt neighbouring radios, knowledge of spectrum environment, understanding of limits imposed on transmission parameters, and transparent sharing of spectrum information by transmitters.