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____ aids in the exploitation of unused channels.

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____ aids in the exploitation of unused channels.

(a) Spectrum awareness

(b) Self awareness

(c) Radio resource awareness

(d) Location awareness

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Question is from Available Technologies for Cognitive Radio topic in chapter Cognitive Radio Basics of Cognitive Radio

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Correct choice is (a) Spectrum awareness

Explanation: A radio that is aware of spectrum occupancy can use this information to exploit open channels on a non-interference basis. This is the first step in efficient usage of available spectrum. It is done in such a way that primary user of the spectrum is unaffected.

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