An approach of selection method in spectrum sensing under Rayleigh fading

This paper considers an approach of secondary user selection method in cooperative spectrum sensing, which the best SNR sensing channel and maximum gain reporting channel are selected for combination to detect PU signal. Then, comparison is made between the presented selection method and conventional selection technique in which only the user having the best sensing channel SNR is selected for performance evaluation. We make assumption that sensing channels experience identical, independent distributed (i.i.d) Rayleigh fading and reporting channels are invariant and non-identical. Simulation results are derived for demonstration.