Question

Which among the following issues require channel-based models for analysis?

a.

Common control channel

b.

Spectrum knowledge

c.

Queue management

d.

Intermittent connectivity

Posted under Cognitive Radio

Answer: (d).Intermittent connectivity Explanation:Intermittent connectivity is caused due to the time-changing nature of the spectrum and loss of channel due to the arrival of the primary user. It is also due to the fact that when the user chooses a channel for communication, the node cannot be reached through other channels. Thus channel-based models are required for developing time-based solutions.

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Q. Which among the following issues require channel-based models for analysis?

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