A modem constellation diagram similar to Fig. 2-23 has data points at the following coordinates: (1, 1), (1, 1), (1, 1), and (1, 1). How

A modem constellation diagram similar to Fig. 2-23 has data points at the following coordinates: (1, 1), (1, ˆ’1), (ˆ’1, 1), and (ˆ’1, ˆ’1). How many bps can a modem with these parameters achieve at 1200 symbols/second?

Figure 2-23

90 90 90 180 - 180 270 270 270 (b) (a) (c)