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r
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t
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se
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p
ro
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n
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t
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e
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terfe
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rth
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rm
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rm
e
x
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o
f
t
h
e
in
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p
ro
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a
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)
is
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n
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ly
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d
a
n
d
d
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riv
e
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c
o
n
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e
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ti
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e
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ry
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ra
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ters
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in
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ll
y
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th
e
M
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te
Ca
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rify
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se
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l
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n
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n
d
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re
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o
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s
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a
n
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e
p
ro
p
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se
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f
o
r
t
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e
c
o
m
m
u
n
ica
ti
o
n
n
e
two
rk
in
th
e
n
e
a
r
f
u
tu
re
.
K
ey
w
o
r
d
s
:
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-
c
h
an
n
el
E
n
er
g
y
h
ar
v
esti
n
g
Fu
ll
-
d
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p
lex
I
n
ter
f
er
e
n
ce
Ou
tag
e
p
r
o
b
ab
ilit
y
T
h
is i
s
a
n
o
p
e
n
a
c
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e
ss
a
rticle
u
n
d
e
r
th
e
CC B
Y
-
SA
li
c
e
n
se
.
C
o
r
r
e
s
p
o
nd
ing
A
uth
o
r
:
Ph
u
T
r
an
T
i
n
,
W
ir
eles
s
C
o
m
m
u
n
icatio
n
s
R
esear
ch
Gr
o
u
p
,
Facu
lty
o
f
E
lectr
ical
an
d
E
lectr
o
n
ics E
n
g
in
ee
r
in
g
,
T
o
n
Du
c
T
h
an
g
U
n
iv
er
s
ity
,
H
o
C
h
i M
in
h
C
ity
,
Vietn
am
.
E
m
ail:
p
h
u
tr
an
tin
@
td
tu
.
e
d
u
.
v
n
1.
I
NT
RO
D
UCT
I
O
N
R
ec
en
tly
,
wir
eless
‐
p
o
wer
ed
co
m
m
u
n
icatio
n
h
as
g
ain
ed
c
o
n
s
id
er
ab
le
in
ter
est
b
ec
au
s
e
o
f
its
ca
p
ab
ilit
y
to
d
ea
l
with
th
e
en
er
g
y
s
ca
r
cit
y
in
en
er
g
y
‐
co
n
s
tr
ain
ed
wir
eless
n
etwo
r
k
s
.
An
attr
ac
tiv
e
s
o
lu
tio
n
th
at
o
v
er
co
m
es
th
e
ab
o
v
e
lim
itatio
n
is
to
h
ar
v
est
en
er
g
y
f
r
o
m
h
u
m
a
n
-
m
ad
e
r
ad
io
f
r
eq
u
e
n
cy
(
R
F)
elec
tr
o
m
ag
n
etic
r
a
d
iatio
n
(
also
k
n
o
wn
as wir
eless
p
o
we
r
tr
an
s
f
er
)
[
1
-
6
]
.
B
ased
o
n
th
at
f
ac
t,
th
e
W
PC
N
an
d
it
s
ef
f
icien
cy
ar
e
co
n
s
id
er
ed
as th
e
m
ain
r
esear
ch
d
ir
ec
tio
n
in
th
e
co
m
m
u
n
icatio
n
n
etwo
r
k
.
I
n
[
7
]
,
th
e
au
th
o
r
s
in
v
esti
g
ated
th
e
f
u
n
d
am
en
tal
tr
ad
eo
f
f
b
etwe
en
th
e
r
ate
o
f
tr
an
s
p
o
r
tin
g
a
c
o
m
m
o
d
ity
b
etw
ee
n
o
n
e
p
o
in
t
an
d
an
o
t
h
er
.
Fu
r
th
er
m
o
r
e
,
p
r
ac
tical
r
ec
eiv
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d
esig
n
s
f
o
r
s
im
u
ltan
e
o
u
s
wir
eless
in
f
o
r
m
atio
n
an
d
p
o
wer
tr
a
n
s
f
er
is
d
etail
s
tu
d
ied
in
[
8
]
.
Mo
r
e
o
v
er
,
th
e
en
er
g
y
h
ar
v
esti
n
g
(
E
H)
c
o
m
m
u
n
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n
n
etwo
r
k
with
t
h
e
p
ar
tial
n
etwo
r
k
-
lev
el
co
o
p
er
atio
n
was
p
r
o
p
o
s
ed
an
d
in
v
esti
g
ated
in
[
9
]
.
Au
th
o
r
s
in
[
1
0
]
p
r
esen
ted
t
h
e
c
o
g
n
it
iv
e
r
elay
n
etwo
r
k
s
with
th
e
E
H
an
d
in
f
o
r
m
atio
n
tr
an
s
m
is
s
io
n
(
I
T
)
at
th
e
s
am
e
tim
e.
Mo
r
eo
v
er
,
th
e
T
SP
an
d
PS
P
p
r
o
to
co
ls
in
th
e
E
H
co
m
m
u
n
icatio
n
n
etwo
r
k
an
d
th
e
p
er
f
o
r
m
an
ce
c
o
m
p
ar
is
o
n
b
etwe
en
t
h
em
ar
e
in
v
esti
g
ated
in
[
1
1
-
1
5
]
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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1
6
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T
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T
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m
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n
C
o
m
p
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t E
l Co
n
tr
o
l
,
Vo
l.
1
8
,
No
.
5
,
Octo
b
e
r
2
0
2
0
:
2
3
35
-
2
3
4
0
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I
n
th
is
r
esear
ch
,
we
p
r
o
p
o
s
e
a
n
d
in
v
esti
g
ate
I
n
ter
ce
p
t
Pro
b
a
b
ilit
y
(
I
P)
An
aly
s
is
in
DF
tim
e
s
witch
in
g
R
elay
in
g
f
u
ll
-
d
u
p
lex
with
I
m
p
ac
t
o
f
C
o
-
ch
an
n
el
I
n
ter
f
er
en
ce
at
th
e
ea
v
esd
r
o
p
p
er
.
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h
e
m
ain
co
n
tr
ib
u
tio
n
o
f
th
is
p
ap
er
ca
n
b
e
d
r
aw
n
as th
e
f
o
llo
ws;
−
T
h
e
DF
tim
e
s
witch
in
g
R
elay
in
g
f
u
ll
-
d
u
p
le
x
(
FD)
wit
h
th
e
I
m
p
ac
t
o
f
C
o
-
ch
an
n
e
l
I
n
ter
f
er
e
n
ce
at
th
e
ea
v
esd
r
o
p
p
er
is
p
r
o
p
o
s
e
d
an
d
i
n
v
esti
g
ated
.
−
T
h
e
ex
ac
t
an
d
asy
m
p
to
tic
an
aly
s
is
o
f
th
e
s
y
s
tem
I
P
is
d
er
iv
ed
an
d
in
v
esti
g
ated
in
c
o
n
n
ec
tio
n
wit
h
th
e
p
r
im
ar
y
s
y
s
tem
p
ar
am
eter
s
.
−
T
h
e
Mo
n
te
C
ar
lo
s
im
u
latio
n
is
co
n
d
u
cted
f
o
r
v
er
i
f
y
in
g
th
e
c
o
r
r
ec
tn
ess
o
f
th
e
a
n
aly
tical
an
aly
s
is
.
I
n
th
is
p
a
p
er
,
t
h
e
s
y
s
tem
m
o
d
el
o
f
th
e
co
m
m
u
n
icatio
n
n
etwo
r
k
h
as
c
o
n
s
id
er
ed
i
n
s
ec
o
n
d
s
ec
tio
n
.
T
h
e
I
P
an
aly
s
is
is
p
r
esen
ted
i
n
th
e
th
ir
d
s
ec
tio
n
in
d
etail.
Nu
m
er
ical
r
esu
lts
an
d
s
o
m
e
co
n
clu
s
io
n
s
is
d
r
awn
in
th
e
f
o
u
r
th
s
ec
tio
n
s
.
I
n
th
e
f
i
n
al
s
ec
tio
n
,
s
o
m
e
co
n
clu
s
io
n
s
ar
e
p
r
o
p
o
s
ed
.
2.
SYST
E
M
M
O
D
E
L
I
n
th
is
s
ec
tio
n
,
Fig
u
r
e
1
p
r
o
p
o
s
ed
th
e
DF
tim
e
s
witch
in
g
r
elay
in
g
f
u
ll
-
d
u
p
lex
(
FD)
with
th
e
I
m
p
ac
t
o
f
Co
-
ch
an
n
el
in
ter
f
er
en
ce
at
th
e
ea
v
esd
r
o
p
p
er
.
T
h
e
en
er
g
y
h
ar
v
esti
n
g
(
E
H)
a
n
d
in
f
o
r
m
ati
o
n
tr
an
s
f
er
r
in
g
(
I
T
)
p
h
ases
ar
e
d
r
awn
in
Fig
u
r
e
2
[
1
6
-
2
0
]
.
I
T
P
h
a
s
e
E
H
P
h
a
s
e
S
E
R
1
...
M
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f
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r
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p
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a
t
R
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(
1
)
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−
I
T
S
R
D
⎯
⎯
→
⎯
⎯
→
Fig
u
r
e
1
.
Sy
s
tem
m
o
d
el
Fig
u
r
e
2
.
T
h
e
E
H
an
d
I
T
p
h
ases
2
.
1
.
E
nerg
y
ha
r
v
esting
(
E
H
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ph
a
s
e
Du
r
in
g
th
e
f
ir
s
t p
h
ase,
th
e
r
ec
eiv
ed
s
ig
n
al
at
th
e
r
ela
y
ca
n
b
e
g
iv
en
b
y
:
r
sr
s
r
y
h
x
n
=+
(
1
)
T
h
e
av
er
a
g
e
tr
an
s
m
itted
p
o
wer
at
th
e
r
elay
ca
n
b
e
o
b
tain
ed
a
s
:
2
2
(
1
)
(
1
)
s
s
r
h
r
s
s
r
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P
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=
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L
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S A
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DIS
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O
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i
n
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esti
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ate
th
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in
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ar
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ar
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th
e
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P o
f
th
e
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tem
m
o
d
el
[
22
-
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]
.
As
s
h
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wn
i
n
Fig
u
r
e
3
,
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s
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tem
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P
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ases
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a
r
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g
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f
ψ
f
r
o
m
0
to
2
5
d
B
.
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m
Fig
u
r
e
3
,
th
e
s
y
s
tem
I
P
in
c
r
ea
s
es
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ile
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ar
ies
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r
o
m
0
to
2
5
d
B
.
Her
e
we
s
et
s
y
s
tem
p
a
r
am
eter
s
as
γ
th
=0
.
5
,
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=0
.
8
,
α
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.
5
,
Ω
=
1
0
d
B
,
an
d
M
=
1
.
3
.
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esid
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e
a
s
y
m
p
to
tic
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r
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e
is
n
ea
r
th
e
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ac
t
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r
v
e.
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h
e
ef
f
ec
t
o
f
Ω
o
n
th
e
s
y
s
tem
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P
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s
d
r
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in
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u
r
e
4
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=
2
,
η
=0
.
8
,
α
=0
.
5
,
Ω
=1
0
d
B
,
an
d
ψ=5
d
B
.
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s
h
o
wn
in
Fig
u
r
e
4
,
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e
s
y
s
tem
I
P
h
as
a
h
u
g
e
d
ec
r
e
ase
with
th
e
r
is
in
g
o
f
Ω
.
I
n
Fig
u
r
es
3
an
d
4
,
we
ca
n
s
tate
th
at
th
e
s
im
u
latio
n
an
d
an
aly
tical
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alu
es a
r
e
th
e
s
am
e
to
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n
v
i
n
ce
th
e
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al
y
tical
s
ec
tio
n
.
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r
th
er
m
o
r
e
,
th
e
ef
f
ec
t
o
f
α
a
n
d
M
o
n
th
e
s
y
s
tem
I
P
ar
e
in
v
esti
g
ated
in
Fig
u
r
es
5
an
d
6
.
I
n
Fig
u
r
e
5
,
we
s
et
M
=
2
,
γ
th
=0
.
5
,
η
=
0
.
5
,
0
.
8
,
ψ=Ω
=5
,
1
0
d
B
an
d
in
Fig
u
r
e
6
,
we
s
et
γ
th
=0
.
5
,
η
=0
.
8
,
α
=0
.
5
,
Ω
=
5
,
1
0
d
B
.
Fro
m
th
ese
Fig
u
r
e
s
,
th
e
s
y
s
tem
I
P
h
as
a
h
u
g
e
in
cr
ea
s
e
with
th
e
r
is
in
g
o
f
α
an
d
h
as
a
h
u
g
e
d
ec
r
ea
s
e
wh
ile
M
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KOM
NI
KA
T
elec
o
m
m
u
n
C
o
m
p
u
t E
l Co
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lysi
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r
ela
yin
g
n
etw
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r
k…
(
P
h
a
m
Min
h
N
a
m
)
2339
v
ar
ies
f
r
o
m
1
to
1
0
.
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h
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es
u
lts
s
h
o
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th
e
an
aly
tical
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r
v
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is
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e
s
am
e
as
th
e
s
im
u
la
tio
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e
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er
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.
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u
r
e
3
.
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ψ
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u
r
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4
.
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P
v
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s
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u
r
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5
.
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α
Fig
u
r
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6
.
I
P
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er
s
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s
M
5.
CO
NCLU
SI
O
N
I
n
th
is
r
esear
ch
,
we
p
r
o
p
o
s
e
an
d
in
v
esti
g
ate
I
P
An
aly
s
is
i
n
DF
tim
e
s
wi
tch
in
g
R
elay
in
g
FD
with
I
m
p
ac
t
o
f
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o
-
ch
a
n
n
el
I
n
ter
f
e
r
en
ce
at
th
e
ea
v
esd
r
o
p
p
er
.
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n
th
e
b
eg
in
n
i
n
g
s
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e,
we
p
r
esen
t
th
e
DF
tim
e
s
witch
in
g
R
elay
in
g
FD
with
th
e
I
m
p
ac
t
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f
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o
-
c
h
an
n
el
I
n
ter
f
er
e
n
ce
at
th
e
ea
v
esd
r
o
p
p
er
.
Fu
r
th
e
r
m
o
r
e
,
th
e
clo
s
ed
-
f
o
r
m
ex
p
r
ess
io
n
o
f
t
h
e
I
P
is
an
aly
ze
d
an
d
d
er
iv
ed
i
n
co
n
n
ec
tio
n
with
th
e
p
r
im
a
r
y
s
y
s
tem
p
ar
am
ete
r
s
.
Fin
ally
,
th
e
Mo
n
te
C
ar
lo
s
im
u
latio
n
is
p
er
f
o
r
m
ed
f
o
r
v
e
r
if
y
i
n
g
th
e
c
o
r
r
ec
tn
ess
o
f
th
e
an
aly
tical
s
ec
tio
n
.
RE
F
E
R
E
NC
E
S
[1
]
Bi
S
.
,
Ho
C.
K.
,
Z
h
a
n
g
R.
,
“
Wi
re
les
s
p
o
we
re
d
c
o
m
m
u
n
ica
ti
o
n
:
Op
p
o
rtu
n
it
ies
a
n
d
c
h
a
ll
e
n
g
e
s
,”
IEE
E
Co
mm
u
n
.
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