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Spectrum sensing is an essential technology to detect the presence of primary users' (PUs) signals in cognitive radio (CR) networks. To achieve desirable performances under shadowing and fading environments, cooperative spectrum sensing has been proposed as a promising scheme, which takes advantage of spatial and multiuser diversity gain. In this paper, we investigate cooperative sensing (CS) in a...
In this paper, we investigated the cooperative sensing in a heterogeneous cognitive radio (CR) network scenario, where each secondary user (SU) may be equipped with different number of receive antennas and have different signal processing capacity, e.g., sampling rate. By considering the discrepancy in sensing reliability of different SUs, we extended the existing researches to propose an optimal...
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