Question

Energy per symbol Es is given as

(a) Es=Eb(log2M)

(b) Es=Eb/(log2M)

(c) Es=2Eb(log2M)

(d) Es=Eb/2(log2M)

This question was addressed to me in an interview.

I'd like to ask this question from M-ary Signalling and Performance topic in division Bandpass Modulation and Detection of Digital Communications

Answer 1

The correct choice is (a) Es=Eb(log2M)

To explain I would say: In M-ary PSK signalling, the energy per symbol is given as Es=Eb(log2M).