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Cognitive radio (CR) is a revolution in radio technology. Cognitive radio networks (CRN) is featured by the dynamic spectrum sharing of the secondary nodes coexisting with the primary nodes. Secondary nodes in cognitive radio networks (CRN) need the ability to work on different frequency bands and intelligently adjust their configuration to changes in the(More)
This paper proposes a nonquiet primary user detection scheme in cognitive radio networks. This scheme can realize cyclostationary feature detection on the condition that the secondary user has same classification and cycle frequency as the primary user. At first, the linear prediction was utilized to predict the signal of secondary user in order to reduce(More)
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