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Spectrum sensing plays a key role in cognitive radio, which enables secondary users to identify and utilize vacant spectrum resources allocated to primary users. In this paper, we focused on the implementation and application of the sepectrum sensing algorithm. A spectrum sensing platform was constructed based on GNU Radio and USRP (Universal Software Radio Peripheral). Energy sensing algorithm based...
In cognitive radio networks, the spectrum of primary users is not fully utilized. In order to improve the spectrum utilization efficiency, secondary users can share the spectrum with primary users, where the primary users can get revenue due to quality of service performance (QoS) degradation and secondary users can meet their demand of the spectrum. In this paper, we establish a system model composed...
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