(Solved): 1. Consider an 4-ary ASK communication system with amplitudes \( \pm 3 \) and \( \pm 1 \). Assume th ...

1. Consider an 4-ary ASK communication system with amplitudes \( \pm 3 \) and \( \pm 1 \). Assume that the symbols are equiprobable a priory. Determine the optimum threshold for detection of this signal in AWGN channel with noise power spectral density of \( N o / 2 \). Also determine the average probability of symbol error in terms of average signal-to-noise-ration per bit (SNR/bit).