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Cooperative spectrum sensing for cognitive radio is recently being studied to minimize uncertainty in primary user detection. In order to improve the detection probability under a sustainable false alarm probability, a reliable scheme for cooperative spectrum sensing based on double threshold energy detection and Dempster-Shafer (D-S) theory is proposed in this paper. In the algorithm, the double...
To improve the performance of spectrum sensing, cooperation among Cognitive Radios (CRs) has been proposed recently as an effective solution. A great part of the existing spectrum sensing algorithms adopt synchronous spectrum sensing method, while the rest asynchronous spectrum sensing algorithms have a severe demand for terminals' sensing performance. This paper proposes a novel Triggered Asynchronous...
Cooperation can improve the performance of spectrum sensing by taking advantage of diversity gains. However, in the process of cooperative spectrum sensing, malicious users could send false local sensing results to the fusion center, which can cause severe distortion to the final sensing decision. To improve the immunity of cooperative spectrum sensing against false sensing information, we propose...
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