Question

The secondary user intentionally senses surrounding environment in ____

a.

policy approach

b.

database approach

c.

active awareness

d.

passive awareness

Posted under Cognitive Radio

Answer: (c).active awareness Explanation:In active awareness, the secondary user actively senses surrounding environment and performs transmission based on the obtained information. In passive awareness, the radio environment information is obtained outside the secondary communication system.

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Q. The secondary user intentionally senses surrounding environment in ____

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