Digital Signal Processing Reference
In-Depth Information
ZF-MMSE linear
ZF-MMSE DFE
10
-1
10
-3
10
-5
10
-7
10
-9
10
20
30
40
50
2
) in dB
SNR (p
0
/M
m
q
PURE-MMSE linear
PURE-MMSE DFE
10
-1
10
-3
10
-5
10
-7
10
-9
10
20
30
40
50
2
) in dB
SNR (p
0
/M
m
q
ZF-MMSE linear
10
-1
ZF-MMSE DFE
PURE-MMSE linear
10
-3
PURE-MMSE DFE
10
-5
10
-7
10
-9
10
20
30
40
50
2
) in dB
SNR (p
0
/M
m
q
Figure 19.15
. Example 19.2 (continued). Symbol error probabilities of optimal
zero-padded DFE transceivers compared with those of optimal zero-padded linear
transceivers, for channel
C
3
(
z
)
.
Top plot shows zero-forced systems, and middle plot
shows systems without zero forcing. All four plots are overlaid in the bottom.
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