Digital Signal Processing Reference
In-Depth Information
Table I.2. Linear MIMO system with orthonormal precoder (Chap. 15
)
ZF-MMSE linear transceiver (Chap. 15, Sec. 15.3.1)
The optimal solution is such that
F
=
α
V
h
I
M
0
G
=
α
−
1
[
Σ
g
0
]
U
h
,
and
(I
.
8)
where
Σ
g
=([
Σ
h
]
M
)
−
1
and
α
is determined by the power
p
0
.
The minimized
MSE is given by
M−
1
E
mmse
=
Mσ
q
σ
s
p
0
1
σ
h,k
(I
.
9)
k
=0
Pure-MMSE linear transceiver (Chap. 15, Sec. 15.3.2)
The optimal solution is such that
F
=
α
V
h
I
M
0
0
]
U
h
,
G
=
α
−
1
[
Σ
g
and
(I
.
10)
where
−
1
I
+
σ
q
σ
s
Σ
g
=(
Σ
h
)
−
M
(
Σ
h
)
−
M
(I
.
11)
and
α
is determined by the power
p
0
.
The minimized MSE is given by
.
M−
1
E
mmse
=
Mσ
s
σ
q
p
0
1
(I
.
12)
Mσ
q
p
0
+
σ
h,k
k
=0
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