How many additional bits of data are represented by each symbol in 16-QAM compared with: QPSK (a) QPSK? (b) BPSK? (c) Using the figure below, determine, for a target BER of 103, what is, approximately, the SNR value (in dB ), required by each of: (i) QPSK (ii) 8PSK (iii) 16 QAM (d) What can you conclude in terms of power consumption to reach the target BER?.