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As a fundamental technology of cognitive radio, the spectrum sensing scheme is required to perform well in low signal-to-noise ratio (SNR) environments. In this paper, we propose a novel spectrum sensing method based on adaptive bistable stochastic resonance (A-BSR). By maximizing the SNR gain introduced by the BSR system, we first present an A-BSR system, of which the parameters can be adaptively...
Spectrum sensing is a fundamental technology to detect the presence of primary user (PU) in cognitive radio. Usually, it requires that the spectrum sensing scheme has a good performance even in extremely low signal-to-noise ratio (SNR) environments. In this paper, we proposed a novel stochastic resonance (SR) aided spectrum sensing scheme to meet this requirement. After analyzing the optimality of...
Spectrum sensing is a fundamental technology to detect the presence of primary users (PU) in cognitive radio. Usually, the spectrum sensing scheme is required to have good performance even in extremely low signal-to-noise ratio (SNR) environments. In this paper, we proposed a novel spectrum sensing method based on adaptive bistable stochastic resonance (A-BSR) to meet this requirement. For the proposed...
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