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We propose a novel spectrum-sensing method for cognitive radio (CR) based on stochastic resonance (SR). The spectral power of primary users (PUs) can be amplified, and the signal-to-noise ratio (SNR) of a received signal can be increased using SR. This ensures that the detection probability of the proposed approach is higher than that of the traditional energy detector. The detection probability of...
Possibility of application of stochastic resonance (SR) method for short realizations of the casual process, which is the additive sum of a harmonious signal and normal noise, is considered. Results of calculation of the signal/noise relation at the output of the nonlinear device with SR, depending on frequency of a harmonious signal, are resulted for various values a signal/noise at the input.
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