Download - Selected Topic5
-
1 Selected Topics in Telecommunication Engineering I
504460
29 2558 .
-
Wireless Communication
2
-
() (The cellular
concept and frequency planning )
: (Mobile radio propagation I: Large scale path loss )
: (Mobile radio propagation II: Multipath and small scale fading )
3
-
() (Modulation
techniques for mobile communications)
(Channel coding for Wireless communications)
(Introduction to Wireless networking)
(Introduction to some wireless communications standards)
4
-
5
-
6
-
1. "2. "" 1 "" 2 "" 3 ""
7
-
" "" 80 km
8
-
" 100 "" "
9
-
()
10
-
R
11
-
12
-
13
-
Hexagon geometry
14
-
Hexagon geometry
15
-
Hexagon geometry
16
-
Hexagon geometry
17
I
J
-
Hexagon geometry
18
I J
-
Hexagon geometry
19
-
1 32 16 336 N=7
) 1
) 1
)
)
) 336/7 = 48
) 48 x 32 = 1,536
20
-
2 128 0.8 336 N=7
) 1
) 1
)
)
) 336/7 = 48
) 48 x 128 = 6,144
21
-
1 2 1 2 4
22
-
23
-
24
BSC= base station controller MSC = Mobile Switching Center VLR= Visitor Location Registor IMEI=International Mobile Equipment Identity EIR = Equipment Identity Register HLR= Home Location Register AuC= Authentication Center SIM= Subscriber Identity Mobile SMSC = Short message service center PSTN = Public Switched Telephone Network
-
25
-
"
1.
26
-
2.
MTSO
27
-
3.
MTSO
28
-
3.
MTSO paging BS BS paging
29
-
4.
BS MTSO MTSO
30
-
5.
BS MTSO
31
-
6.
BS BS
32
-
33
-
34
-
path loss model
path loss model wave propagation
35
-
36
BSC= base station controller MSC = Mobile Switching Center VLR= Visitor Location Registor IMEI=International Mobile Equipment Identity EIR = Equipment Identity Register HLR= Home Location Register AuC= Authentication Center SIM= Subscriber Identity Mobile SMSC = Short message service center PSTN = Public Switched Telephone Network
-
Hand over Hand off
37
-
38
-
39
-
40
1234
5
6
-
41
-
L
N nonblocking
L N blocking
42
-
43
-
44
= x = 4.9
-
45
C =
-
46