1. Consider the two constellations in the figure below where the minimum distance between…

1. Consider the two constellations in the figure below where the minimum distance between waveforms is A. Which is the average energy in the two cases? Which constellation requires less energy?

2. A transmission system employs four waveforms with probabilities  and p2 = p3. The waveform space has dimension I = 1 and constellation

In the presence of AWGN with PSD  evaluate:

a) The error probability with minimum distance decision regions.

b) The error probability with optimum decision regions.

 

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