Comparison results of stochastic resonance effects realized by coherent and non-coherent receiver

Abstract

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 results demonstrate that the noise-enhanced transmission BER occur for non-coherent received in various noise scenarios. The BER of the signal from a nonlinear system over that of a linear system. For coherent received, whatever background noise is not favorable for the signal processing. The performance of a linear system is best.