Question

____ spread spectrum is ____ when ___ is programmed.

a.

Frequency hopped, adaptive, hop

b.

Frequency hopped, not adaptive, hop

c.

Direct sequence, not adaptive, sequence

d.

Direct sequence, adaptive, hop

Posted under Cognitive Radio

Answer: (b).Frequency hopped, not adaptive, hop Explanation:Frequency hopped spread spectrum is not adaptive when hop is programmed. However when the hop pattern is modified to mitigate collision, the frequency hopping radio can be considered as adaptive.

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Q. ____ spread spectrum is ____ when ___ is programmed.

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