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In opportunistic spectrum access (OSA), secondary radios (SRs) are allowed to access the channel whenever primary radios (PRs) are not transmitting. The PR's spectrum activities are normally assumed to be a 2-state continuous Markov on-off process which can be modeled as two independent exponential random variables. On the other hand, some simulations prefer using a 2-state discrete Markov chain....
In opportunistic spectrum access, a secondary radio (SR) periodically senses for a vacant channel to transmit. Common performance measures of the adopted sensing algorithm include missed detection and false alarm probabilities. However, minimal effort is made to incorporate the primary radio (PR) spectrum activities in the design. This paper models the errors arising from the mismatch between the...
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