Fig. 6From: An analysis of energy detector based on improved approximations of the chi-square distributionsTotal error probability \(P_{\mathrm{f}}+P_{\mathrm{md}}\) simulated, using original equations and approximations, depending on a detection threshold and b number of samples, using different design values \({\hat{P}}_{\mathrm{f}}, {\hat{P}}_{d}, \sigma _n = 1\) and \({\hbox {SNR}} =0\,{\hbox {dB}}\)Back to article page