Code Division Multiple Access (CDMA) phần 8 potx
Code Division Multiple Access (CDMA) phần 8 potx
... MOBK023-Buehrer.cls September 28, 2006 15:55
126
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MOBK023-05 MOBK023-Buehrer.cls September 28, 2006 15:56
1 38 CODE DIVISION MULTIPLE ACCESS (CDMA)
5.4 NON-LINEAR SUB-OPTIMAL ... shortly.
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MOBK023-05 MOBK023-Buehrer.cls September 28, 2006 15:56
1 28 CODE DIVISION MULTIPLE ACCESS (CDMA)
represented as
r(t) =
K
k=1
s
k
(t −τ
k
)...
Code Division Multiple Access (CDMA) phần 3 potx
... September 28, 2006 15:54
44 CODE DIVISION MULTIPLE ACCESS (CDMA)
0 0.5 1 1.5 2 2.5 3 3.5 4
×10
8
0 0.5 1 1.5 2 2.5 3 3.5 4
×10
8
0 0.5 1 1.5 2 2.5 3 3.5 4
×10
8
0 0.5 1 1.5 2 2.5 3 3.5 4
×10
8
1
0
1
1
0
1
1
0
1
1
0
1
Time ... September 28, 2006 15:54
30 CODE DIVISION MULTIPLE ACCESS (CDMA)
FIGURE 2.4: Comparison of original/despread signal and spread signal spe...
Code Division Multiple Access (CDMA) phần 1 doc
... 64
2 .8 Multiple Access Performance of Frequency-Hopped
Code Division Multiple Access 67
2.9 Summary 71
3. Cellular Code Division Multiple Access 73
3.1 Principles of Cellular Code Division Multiple ... September 28, 2006 15:54
Code Division Multiple Access
(CDMA)
i
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MOBK023-FM MOBK023-Buehrer.cls September 28,...
Code Division Multiple Access (CDMA) phần 2 doc
... MOBK023-Buehrer.cls September 28, 2006 15:54
16 CODE DIVISION MULTIPLE ACCESS (CDMA)
1.2.1 ALOHA
The most common contention-based methods are random access methods. The first random
access method was developed ... have
Q ≥
√
6 ∗ 10
1 .8
3
= 6. 48 (1.17)
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MOBK023-01 MOBK023-Buehrer.cls September 28, 2006 15:54
14 CODE DIVISION MU...
Code Division Multiple Access (CDMA) phần 4 pdf
... (2.78a)
= T
c
2
P
j
4
3N −2((N −1)/2) − 1
3
(2.78b)
=
T
c
2
P
j
N
6
(2.78c)
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48 CODE DIVISION MULTIPLE ACCESS (CDMA)
The ... that arise in the multiple cell scenario
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62 CODE DIVISION MULTIPLE ACCESS (CDMA)
0 2 4...
Code Division Multiple Access (CDMA) phần 5 ppt
... September 28, 2006 15:55
82 CODE DIVISION MULTIPLE ACCESS (CDMA)
3.1.4 Statistical Multiplexing
The final fundamental CDMA concept that we will discuss in this section is termed statistical
multiplexing, ... IML
MOBK023-03 MOBK023-Buehrer.cls September 28, 2006 15:55
74 CODE DIVISION MULTIPLE ACCESS (CDMA)
0 500 1000 1500
0
0.002
0.004
0.006
0.0 08
0.01
0.012
0.014
0....
Code Division Multiple Access (CDMA) phần 6 docx
... September 28, 2006 15:55
104 CODE DIVISION MULTIPLE ACCESS (CDMA)
0 0.2 0.4 0.6 0 .8 1 1.2 1.4 1.6 1 .8 2
10
-
2
10
-
1
10
0
Fast Rayleigh fading channel
0 0.2 0.4 0.6 0 .8 1 1.2 1.4 1.6 1 .8 2
0
1
2
3
Transmit ... September 28, 2006 15:55
CELLULAR CODE DIVISION MULTIPLE ACCESS 103
0 0.2 0.4 0.6 0 .8 1 1.2 1.4 1.6 1 .8 2
10
-
2
10
-
1
10
0
Slow Rayleigh fading channe...
Code Division Multiple Access (CDMA) phần 7 pps
... IML
MOBK023-04 MOBK023-Buehrer.cls September 28, 2006 15:55
114 CODE DIVISION MULTIPLE ACCESS (CDMA)
Node 1
Node 2
Node 3
Node 4
Node 5
Node 6
Node 7
Common code
Common code
C
o
d
e
#
4
C
o
d
e
#
2
Primary ... perfect side information (N = 1 28, perfect
codes).
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116 CODE DIVISION MULTIPLE ACC...
Code Division Multiple Access (CDMA) phần 9 docx
... =0
(−1)
s
P
s
RAb +
M
s =0
(−1)
s
P
s
n (5 .88 )
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MOBK023-05 MOBK023-Buehrer.cls September 28, 2006 15:56
150 CODE DIVISION MULTIPLE ACCESS (CDMA)
Mathematically, we can represent ... IML/FFX P2: IML
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162 CODE DIVISION MULTIPLE ACCESS (CDMA)
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 .8 0.9 1
10
-...
Code Division Multiple Access (CDMA) phần 10 pot
... analysisofrandom-accesspacketswitchedcodedivision
multiple access channels,” IEEE Transactions on Communications, vol. 29, pp. 89 5–901,
June 1 981 .
[46] M. Joa-Ng and I. Lu, “Spread spectrum medium access ... suboptimal detection for asynchronous code- division multiple-
access channels,” in Proceedings of the 26th Annual Conference on Information Sciences and
Systems, pp. 83...