Answer to Question #211644 in Computer Networks for Abin

Question

Consider an Mary QAM constellation with symbol spacing of the

constituent PAM constellations given by, unit pulse energy,

transmitted over an AWGN channel with PSD No 2 No2 per IQI,Q

channels What is the probability of error given the transmission

of a constellation point on the edge of the square constellation

but not a corner point

Answer 1

3Q (∆\✓2N°) - 2Q² (∆\✓2N° )