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Which among the following statements is false?(a) Arrival of primary user triggers handoff(b) Primary user communication is of high priority(c) Secondary user can occupy licensed spectrum band until completion of communication(d) Secondary user moving in a band should not interrupt primary user communicationI had been asked this question in an online quiz.The query is from Next Generation Wireless Network in portion Next Generation Wireless Network of Cognitive Radio |
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Answer» CORRECT CHOICE is (c) Secondary user can occupy licensed spectrum band until completion of communication For explanation I WOULD say: In the licensed band, primary user communication holds a higher priority than the secondary user. The primary user can initiate handoff by APPEARING in the licensed spectrum band. It can also initiate handoff when secondary user transmission COVERAGE overlaps with that of a primary user in the same band. |
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