Radio Resource Management in 4G Networks
Transcript of Radio Resource Management in 4G Networks
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R
E b/N 0 α
G
E c/I 0
E c/I or
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ηmax
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D = R√ 3N
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O l d
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1
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W u
H
2
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2nd
2nd
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N
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N
υ j j
E b/N 0
W
R j j
i
j i j
ηDL
ηDL =N
j =1
v j(E b/N 0) j
W/R j ·[(1 −α j ) + i j ] ,
−10log10(1−ηDL )
α j
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N
υ j j
E b/N 0
W
R j j
α j
j
i j
j i j
α
∼
∼
i
i
j
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ηDL =N
j =1
v j (E b/N 0) jW/R j · (1 −α) + i ,
α j i
j
ηa
ηa UMTS = ηmax −ηDL .
ηmax
ηmax < 1 ηmax
0.75
ηmax
ηmax
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Ro
R th
Ro Rth 0 1.
BwWLAN = P ·(R th −Ro)
T ,
P T
Roi = α · tbusy∆ t
+ ( Roi − 1 ) ·(1 −α),
tbusy ∆ t
α i
∆ t
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T
T = DIFS + T [EP ] + SIFS + ACK.
T
T = DIFS + RT S + SIFS + CT S + SIFS + T [EP ] + SIFS + ACK
T [EP ] EP
RTS, CTS ACK RTS, CTS ACK
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M
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1y 1 y P UMTS P WLAN
tend = P UMTS ∗ ηa UMTS ≥ ∆ ηr −P WLAN ∗ Bw WLAN ≥ r
ηaUMTS BwWLAN
P UMTS P WLAN
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ηaUMTS ηmax ηDL
BwWLAN ∆ ηr
r
NetworkAllocator =
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1st
1st
2nd
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1/λ = 3600U q
×U c
,
U q U c
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ηmax , 0.75
ηmax
0.50, 0.25
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1
0
.1
.3
.x
1
0
.1
.4
.x
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y x
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(TerminalIPv 4, DestinationPort ) → TunnelSocket
SourcePort →realNetdevice
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0 100 200 300 400 500 600 700 800 900 1000
0.05
0.1
0.15
0.2
0.25
Number of Users
C a l l A d m i s s i o n R a t i o o n
U M T S
Voice
Video
www
FTP
0 100 200 300 400 500 600 700 800 900 1000
0.05
0.1
0.15
0.2
0.25
Number of Users
C a l l A d m i s s i o n R a t i o o n
W L A N
Voice
Video
www
FTP
0 100 200 300 400 500 600 700 800 900 1000
0.05
0.1
0.15
0.2
0.25
Number of Users
C a l l
H a n
d o v e r
R a t
i o
Handover from UMTS to WLAN
Handover from WLAN to UMTS
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CBP (%) = 1 − C acpt
C off ×100,
C acpt C of f
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95%
S
GCBP MTend S = |Users MTend −Users S |
Users MTend
2%, G2%MTend LBal = 6%,
G2%MTend CovAr = 35%.
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0 100 200 300 400 500 600 700 800 900 1000
10
20
30
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60
70
80
90
100
Number of Use rs
C a l l
B l o c k
i n g
P r o
b a b
i l i t y ( % )
MTend
LBal
CovAr
0 10 20 30 40 50
1
2
3
4
5
0 100 200 300 4 00 500 600 700 800 900 1000
10
20
30
40
50
60
70
80
90
100
Number of Users
C a l l
B l o c k
i n g
P r o
b a b
i l i t y ( % )
MTend
LBal
CovAr
0 10 20 30 40 50
1
2
3
4
5
95%
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0 100 200 300 400 500 600 700 800 900 1000
10
20
30
40
50
60
70
80
90
100
Number of Use rs
C a l l
B l o c k
i n g
P r o
b a b
i l i t y ( % )
MTend
LBal
CovAr
0 10 20 30 40
2
4
6
8
10
12
14
15
0 100 200 300 400 500 600 700 800 900 10 00
10
20
30
40
50
60
70
80
90
100
Number of Use rs
C a l l
B l o c k
i n g
P r o
b a b
i l i t y ( % )
MTend
LBal
CovAr
0 10 20 30 40
2
4
6
8
10
12
14
16
GCBP MTend S
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0 100 200 300 400 500 600 700 800 900 1000
10
20
30
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50
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70
80
90
100
Number of Users
C a l l
R e n e g o
t i a t i o n
T r i e s
( % )
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
10
20
30
40
50
60
70
80
90
100
Number of Users
C a l l
R e n e g o
t i a t i o n
T r i e s
( % )
MTend
LBal
CovAr
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0 100 200 300 400 500 600 700 800 900 1000
10
20
30
40
50
Number of Users
R e a l l o c a t i o n
C a l l s
( % )
Reallocation to WLAN
Reallocation to UMTS
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0 100 200 300 400 500 600 700 800 900 1000
5
10
15
20
25
30
35
40
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Number of Users
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C a l l s o n
U M T S I n t e r f a c e
( % )
MTend
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CovAr
0 100 200 300 400 500 600 700 800 900 1 000
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10
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Number of Users
V o i c e
C a l l s o n
U M T S I n t e r f a c e
( % )
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
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10
15
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35
40
45
50
Number of Users
V i d e o s t r e a m i n g
C a l l s o n
W L A N I n t e r f a c e ( % )
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
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10
15
20
25
30
35
40
45
50
Number of Users
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W L A N I n t e r f a c e ( % )
MTend
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Number of Users
F T P C a l l s o n
W L A N I n t e r f a c e
( % )
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
5
10
15
20
25
Nmber of Users
F T P C a l l s o n
W L A N I n t e r f a c e
( % )
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
5
10
15
20
25
Number of Users
w w w
C a l l s o n
W L A N I n t e r f a c e ( % )
MTendLBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
5
10
15
20
25
Number of Users
w w w
C a l l s o n
W L A N I n t e r f a c e ( % )
MTendLBal
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100
Number of Users
A v e r a g e
O c c u p a t i o n
R a t i o
( % )
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
10
20
30
40
50
60
70
80
90
100
Number of Users
A v e r a g e
O c c u p a t i o n
R a t i o
( % )
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
10
20
30
40
50
60
70
80
90
100
Number of Users
A v e r a g e
O c c u p a t i o n
R a t i o (
% )
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
10
20
30
40
50
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100
Number of Users
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O c c u p a t i o n
R a t i o (
% )
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120
Number of Users
A v e r a g e
T r a n s m
i s s i o n T i m e
( m s )
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1000
20
40
60
80
100
120
Number of Users
A v e r a g e
T r a n s m
i s s i o n T i m e ( m s )
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
20
40
60
80
100
120
Number of Users
A
v e r a g e T r a n s m
i s s i o n T i m e
( m s )
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
20
30
60
80
100
120
Number of Users
A v e r a g e
T r a n s m
i s s i o n T i m e
( m s )
MTend
LBal
CovAr
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1
2
3
4
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6
Number of Users
A v e r a g e
T h r o u g h p u t f o r M T e n d
( M b i t / s )
1500 bytes 1000 bytes 500 bytes 50 bytes
0 100 200 300 400 500 600 700 800 900 1000
1
2
3
4
5
6
Number of User
A v e r a g e
T h r o u g h p u t f o r L B a l (
M b i t / s )
1500 bytes1000 bytes500 bytes50 bytes
0 100 200 300 400 500 600 700 800 900 1000
1
2
3
4
5
6
Number of Users
A v e r a g e
T h r o u g h p u t C o v A r
( M b i t / s )
1500 bytes1000 bytes500 bytes50 bytes
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0 100 200 300 400 500 600 700 800 900 1 000
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90
100
Number of Users
C a l l
B l o c k
i n g
P r o
b a b
i l i t y ( %
)
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
10
20
30
40
50
60
70
80
90
100
Number of Users
C a l l
B l o c k
i n g
P r o
b a b
i l i t y ( %
)
MTend
LBal
CovAr
0 100 200 300 400 500 600 700 800 900 1 000
10
20
30
40
50
60
70
80
90
100
Number of Users
C a l l
B l o c k
i n g
P r o
b a b
i l i t y ( % )
MTend
LBal
CovAr
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GCBP MTend S
0 100 200 300 400 500 600 700 800 900 1000
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20
30
40
50
Number of Users
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f f A t t e m p t
( % )
MTend
LBal
CovAr
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10
20
30
40
50
60
70
80
90
100
Number of Users
S u c c e s s f u
l l H a n
d o
f f ( % )
MTend
LBal
CovAr
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10
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30
Number of Users
C a l l s o n
U M T S U s i n g
M T e n d
S t r a t e g y
( % )
Voice CallsVideo Callswww Calls
0 10 50 100 150 200 250 300
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10
15
20
25
30
Number of Users
C a l l s o n
W L A N U s i n g
M T e n d S t r a t e g y
( % )
Voice CallsVideo Callswww Calls
0 10 50 100 150 200 250 300
5
10
15
20
25
30
Number of Users
C a l l s o n
U M T S U s i n g
L B a l S t r a t e g y
( % )
Voice CallsVideo Callswww Calls
0 10 50 100 150 200 250 300
5
10
15
20
25
30
Number of Users
C a l l s o n
W L A N U s i n g
L B a l S t r a t e g y
( % )
Voice CallsVideo Callswww Calls
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Number of Users
C a l l s o n
U M T S U s i n g
C o v A r
S t r a t e g y
( % )
Voice CallsVideo Calls
www Calls
0 10 50 100 150 200 250 300
5
10
15
20
25
30
Number of Users
C a l l s o n
W L A N U s i n g
C o v A r S t r a t e g y
( % )
Voice CallsVideo Callswww Calls
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0 10 50 100 150 200 250 300
200
400
600
800
1.000
1.200
1.400
Number of Users
U M T S R e v e n u e
i n H o t s p o t E n v i r o n m e n t ( M
U )
MTendLBalCovAr
0 10 50 100 150 200 250 300
200
400
600
800
1.000
1.200
1.400
Number of Users
W L A N R e v e n u e
i n H o t s p o t E n v i r o n m e n t ( M
U )
MTendLBalCovAr
GUsersMTend S =
Revenue MTend −Revenue S
Revenue S
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400
600
800
1.000
1.200
1.400
Number of Users
T o t a l R e v e n u e
i n H o t s p o t E n v i r o n m
e n t ( M U )
MTendLBalCovAr
GUsersMTend S
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R
R
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E b/N 0 α
E b/N 0 α
E b/N 0
E b/N 0
N 0 I 0
E b/N 0
E b/N 0
P rx
I R
W
P rx 1/R
E bN 0 = P rx /RI/W = W P rxR I ,
E b/N 0
E b/N 0
E b/N 0
E bN 0
= W R
= P rx
I own .(1 −α) + I oth + P N ,
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I own I oth
P N
α
α
α E b/N 0 α
G
G
i G
G = I own
I oth + P N .
P N ≪I oth G = 1/i
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E c/I 0
E c/I 0
E c/I 0
E b/N 0 W/R
I 0
E b/N 0
E c/I or
E c/I or
E c/I or
E c/I or
X Y % E c/I or
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