Question: In this problem, we continue with Example 9.9. Suppose that the tightly packed constellation of Figure b is scaled upward so that the transmitted signal

In this problem, we continue with Example 9.9. Suppose that the tightly packed constellation of Figure b is scaled upward so that the transmitted signal energy per symbol is maintained at the same average value as that consumed by the 64-QAM square constellation of Figure a. Construct the new constellation that results from this scaling. How does the bit error rate of this new constellation compare with that of figure a justify your answer.

10- 10 0000000O 100 -5 -10 -10 -10 -10 -5 10 -5

10- 10 0000000O 100 -5 -10 -10 -10 -10 -5 10 -5 10 la) (h)

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