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This paper proposes a wideband spectrum sensing scheme in cooperative cognitive radio networks. The proposed multiband scanning method efficiently exploiting scheduling diversity outperforms the conventional multiband scanning method using the spatial diversity. The proposed scheduling diversity is more beneficial to the low-SNR regime with a large number of sensors and sensing channels.
This letter proposes a spectrum sensing method based on the likelihood ratio test (LRT) considering instantaneously non-identically distributed samples and assuming that the distribution of a test statistic varies in every acquired sample. Since, in reality, it is impossible to perform the ideal LRT that fully reflects such a change of a sample statistic, we propose a practical sensing method that...
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