EC > GATE 2014 SET-2 > Digital Modulation
Coherent orthogonal binary FSK modulation is used to transmit two equiprobable symbol waveforms s1(t) = α cos 2πf1t and s2(t) = α cos 2πf2t, where α = 4 mV. Assume an AWGN channel with two-sided noise power spectral density N0/2 = 0.5 × 10-12 W/Hz. Using an optimal receiver and the relation Q(v) = (1/√(2π)) ∫v∞ e-u2/2 du, the bit error probability for a data rate of 500 kbps is
Correct : q(4)
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