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To boost the performance of binary pulse amplitude modulation at low signal-to-noise ratio, the parameter-tuned stochastic resonance (SR) is introduced into digital communications system. In this study, an analytical framework is developed for evaluating the system performance by approximating the probability density function of the Ornstein–Uhlebeck noise based on the central limit theorem. Expression...
In this paper, we propose a high order cumulants based spectrum sensing and power recognition (CSR) detector for hybrid interweave-underlay spectrum access, where the primary system is with multiple transmit power levels. Specifically, to detect the idle spectrum when primary user (PU) is absent, high order cumulants based spectrum sensing is performed in interweave model. When PU is detected, the...
This paper studies the parameter-tuned stochastic resonance (PSR) effect in Binary PAM Signal Processing under coherent and non-coherent received by the measure of Bit Error Rate (BER). Based on probability density function of general Gaussian noise, we derive an analytical expression of the BER under coherent and non-coherent received through different types of noise. The theoretical and numerical...
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