Digital Signal Processing Reference
In-Depth Information
10
0
L = 2
L = 4
L = 8
L = 16
Option 1
Option 2
10
−1
10
−2
10
−3
10
−4
10
−5
10
−6
0
5
10
15
20
25
30
35
Average channel SNR [dB]
FIgure 6.7
Average error rate of SEC-based bandwidth-efficient schemes for both options and
different numbers of antennas
L
.
8
7
6
5
4
3
L = 2
L = 4
L = 8
L = 16
Option 1
Option 2
2
1
0
0
5
10
15
20
25
30
35
Average channel SNR [dB]
FIgure 6.8
Average spectral efficiency of SECps-based bandwidth-efficient schemes for both
options.
on those of the SECps-based bandwidth-efficient scheme here. From Figure 6.8, unlike
the SEC-based bandwidth-efficient scheme, the spectral efficiency of the SECps-based
scheme benefits from the increasing number of antennas over all SNR regions. Basi-
cally, when the largest constellation is not feasible, the SECps-based bandwidth-efficient
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