Broadband Powerline Communications Networks Design phần 3 pdf
Broadband Powerline Communications Networks Design phần 3 pdf
... 47,715/frequency (kHz)
1.705–10 100 30
10– 13. 5 53 30 30
13. 5 53 13. 567 10,000 30
13. 567–26.96 30 30
26.96–27.28 10,000 (average) 3
27.28 30 30
100
120
80
60
0
0 5 10 15 20
30
25
20
40
Radiated emission ... 2.8 3. 0; 3. 02 3. 15; 3. 4– 3. 5;
3. 8 3. 9; 4.4– 4.65; 5.4–5.68;
6.6–6.7; 8.81–8.96; 10.0– 10.1;
10.1–11.1; 21.0–22.0; 23. 0– 23. 2
Radio astronomy Radio Astro...
Broadband Powerline Communications Networks Design phần 8 pdf
... is
carried out;
Broadband Powerline Communications Networks H. Hrasnica, A. Haidine, and R. Lehnert
2004 John Wiley & Sons, Ltd ISBN: 0-470-85741-2
200 Broadband Powerline Communications Networks
a ... with joint control messages, an
210 Broadband Powerline Communications Networks
6.2.2.2 Disturbance Modeling
As presented in Sec. 3. 4.4, the disturbances in PLC...
Broadband Powerline Communications Networks Design phần 1 ppt
... 0-470-85741-2
Broadband Powerline
Communications
Networks
viii Contents
3. 1.2 Organization of PLC Access Networks 41
3. 1 .3 Structure of In-home PLC Networks 47
3. 1.4 Complex PLC Access Networks 48
3. 1.5 Logical ... Systems 36
2.4.5 Performance Improvement by Efficient MAC Layer 36
2.5 Summary 37
3 PLC Network Characteristics 39
3. 1 Network Topology 39
3. 1.1...
Broadband Powerline Communications Networks Design phần 4 potx
... higher
Broadband Powerline Communications Networks H. Hrasnica, A. Haidine, and R. Lehnert
2004 John Wiley & Sons, Ltd ISBN: 0-470-85741-2
74 Broadband Powerline Communications Networks
Time
Amplitude ... by Eqs. (3. 26) and (3. 27) for residential and industrial
environments respectively; [Phil00]:
N
BN
(f ) = 35 + 35 · e
−
f [
MHz]
3, 6
for residential environments a...
Broadband Powerline Communications Networks Design phần 5 pptx
... c
(1)
1
c
(2)
1
c
(1)
2
c
(2)
2
c
(1)
3
c
(2)
3
(4.51)
106 Broadband Powerline Communications Networks
+
+
+
MUX
message
bits
Code bits
c
i
(1)
c
i
(2)
c
i
(3)
a
i
a
i
−1
a
i
−2
a
i
3
s
i
(1)
s
i
(2)
s
i
(3)
Figure 4.20 ... 2Symbol 1
01 23 45 7
0415 2 637
Error burst
Channel
De-interleaver
0415 2 637
4671 230
6
5
Figure 4.25 Operations of simple interleaving strategy
128...
Broadband Powerline Communications Networks Design phần 6 pptx
... described in [Walke99]; for example, the
134 Broadband Powerline Communications Networks
SC1
SC2
SC3
SCk
SC1
SC2
SC3
SCk
SC1
SC2
SC3
SCk
SC1
SC2
SC3
SCk
CH1
CH2
CH3
CH
n
Figure 5.7 OFDMA channel structure
In ... 9
according to Eq. (5. 13) . This autocorrelation function is presented in Fig. 5. 23.
158 Broadband Powerline Communications Networks
Time slots
CW
1
CW
2
CW
3
CW...
Broadband Powerline Communications Networks Design phần 7 pot
... investigated for implementa-
tion in various telecommunications technologies (ATM, modern IP networks, etc.). Thus,
184 Broadband Powerline Communications Networks
realized by redirecting the transmission ... token-ring protocol [Chan00], the
162 Broadband Powerline Communications Networks
Start
End
Packet
generation
Channel
idle ?
Transmit
ACK ?
N
Y
N
Y
Back off
Figure 5 .35...
Broadband Powerline Communications Networks Design phần 9 potx
... protocol in networks with
both rare and frequent transmission requests.
234 Broadband Powerline Communications Networks
1
10
100
1000
10,000
100,000
1e + 06
50 100 150 200 250 30 0 35 0 400 450 ... piggybacking, extended random
access, and dynamic backoff mechanism
240 Broadband Powerline Communications Networks
6 .3. 3 .3 Two-step Reservation Protocol
From the investiga...
Broadband Powerline Communications Networks Design phần 10 pptx
... data
rate/kbps
Share/%
M1 Uplink 3. 55 33 2.5 0.75 40
M2 Uplink 1.06 33 2.5 2.5 20
M3 Uplink 0 .35 33 2.5 7.5 10
M4 Downlink 0.88 822 .33 7.5 10
M5 Downlink 0.26 822 .33 25 10
M6 Downlink 0.07 822 .33 100 10
Average: ... hoc networks,
Wireless Networks, 7, 37 1 38 4 2001.
[Yang98] S. C. Yang, CDMA RF System Engineering, Artech House, Inc., USA, 1998, ISBN 0-89006-
991 -3.
256 Broadb...
broadband powerline communications networks
...
t
1
f
2
or
t
2
f
3
or
t
3
Subnetwork I
Subnetwork II
Subnetwork III
Figure 2.18 Gateways in the PLC access network
14 Broadband Powerline Communications Networks
2.2 Powerline Communications ... areas, low-voltage networks are realized with
underground cables, whereas in rural areas they exist usually as overhead networks.
32 Broadband Powerline Communications N...