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Multiuser collaboration can significantly improve the performance of spectrum sensing in cognitive radio networks. By admitting the noise power estimation error and fading/shadowing effects in practical implementation, this paper presents another look at the energy detection based cooperative spectrum sensing. The worst-case collective probability of miss detection due to the noise uncertainty is...
Cooperation is necessitated for tackling the challenges caused by fading/shadowing effects, noise uncertainty and sensing time constraints in spectrum sensing of cognitive radio networks. This paper studies the optimization problem of energy detection based cooperative spectrum sensing (CSS), with the main focuses on the optimality of K out of N fusion strategy and cooperative-user number. The procedures...
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