Digital Signal Processing Reference
In-Depth Information
ZF-MMSE linear
ZF-MMSE DFE formula
10
-1
ZF-MMSE DFE simul
10
-3
10
-5
10
-7
10
20
30
40
50
2
) in dB
SNR (p
0
/M
m
q
PURE-MMSE linear
PURE-MMSE DFE formula
10
-1
PURE-MMSE DFE simul
10
-3
10
-5
10
-7
10
20
30
40
50
2
) in dB
SNR (p
0
/M
m
q
Figure 19.16
. Example 19.2 (continued). Simulation versus theory. Symbol error
probabilities of optimal zero-padded DFE transceivers for channel
C
1
(
z
)
.
The dashed
lines are from the closed-form formula for the error probability, whereas the circles are
obtained from actual Monte Carlo simulation. Top plot shows zero-forced systems,
and bottom plot shows MMSE systems without zero forcing. The error probabilities
for linear transceivers are shown as solid lines for reference.
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