Adaptation Techniques and Enabling Parameter Estimation Algorithms for Wireless Communications Systems - Adaptive Signal Processing in Wireless Communications - page 22

10 0

BPSK
QPSK
16-QAM
64-QAM

10 - 1

10 - 2

10 - 3

10 - 4

0 5 10 15 20 25 30

Signal-to-noise ratio (dB)

(a)

6

BPSK
QPSK
16-QAM
64-QAM

5

4

3

2

1

0

0 5 10 15 20 25 30

Signal-to-noise ratio (dB)

(b)

FIgure 1.10 llustration of the BER and spectral efficiency of several modulation options. (a)
BER plots of different modulations as a function of SNR. (b) Spectral efficiency of different modu-
lation as a function of SNR.