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What is the purpose of out-of-band sensing?

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What is the purpose of out-of-band sensing?

(a) Fast switching

(b) Fast routing

(c) Fast discovery

(d) Fast handoff

This question was posed to me in unit test.

This interesting question is from Next Generation Wireless Network in chapter Next Generation Wireless Network of Cognitive Radio

1 Answer

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Correct option is (c) Fast discovery

Easy explanation: Out-of-band sensing computes the time duration required by a cognitive radio user to detect a completely available spectrum band for transmission. Sensing order and stopping rule are factors that overlook out-of-band sensing.

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