Fig. 9From: Signal-to-noise ratio estimation for M-QAM signals in η−μand κ−μfading channelsNMSE of the estimate \(\hat {\gamma }\) as a function of the SNR in dB, N=5×104, η−μ fading for η=0.1 and μ=0.6, and different orders of the M-QAM constellationBack to article page