Broadband Powerline Communications Networks Design phần 6 pptx

... neighboring communications systems, and so on. User 1 User 2 User 3 User M −1 User M Power Frequency Figure 5.24 Interferences between users of a CDMA system 1 36 Broadband Powerline Communications Networks 5.2.3.1 ... accessible sections of the transmission resources are provided by both division 1 46 Broadband Powerline Communications Networks transmitters using differen...

Ngày tải lên: 14/08/2014, 01:21

... 1 0123 45 7 0415 263 7 Error burst Channel De-interleaver 0415 263 7 467 1230 6 5 Figure 4.25 Operations of simple interleaving strategy 128 Broadband Powerline Communications Networks mechanisms ... given by Eq. (4.51). c = c (1) 1 c (2) 1 c (1) 2 c (2) 2 c (1) 3 c (2) 3 (4.51) 1 06 Broadband Powerline Communications Networks + + + MUX message bits Code bits c i (1) c i...

Ngày tải lên: 14/08/2014, 01:21

... ISBN 3-8 265 - 766 4-0, ISSN 0945-0823, in German. [ZimmDo00] M. Zimmermann, K. Dostert, An analysis of the broadband noise scenario in powerline networks, International Symposium on Powerline Communications ... hoc networks, Wireless Networks, 7, 371–384 2001. [Yang98] S. C. Yang, CDMA RF System Engineering, Artech House, Inc., USA, 1998, ISBN 0-890 06- 991-3. 2 56 Broadband...

Ngày tải lên: 14/08/2014, 01:21

... 8 Broadband Powerline Communications Networks Big customers Individual subscribers Access networks WAN Figure 2.1 General structure of telecommunications networks to the subscribers. ... optical telecommunications networks offer higher data rates than any other communications technology. Frequent usage of optical transmission systems within 4 Broadband Powerline Communica...

Ngày tải lên: 14/08/2014, 01:21

... dB(µV) band (MHz) Class A Class B Quasi-peak Average Quasi-peak Average 0.15–0.50 79 66 66 – 56 56 46 0.50–5 73 60 56 46 5–30 7 360 6050 ... 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 Astronomy 13.3–13.4; 25.55–25 .67 58 Broadband Powerline Communications Networks Coupling ... Traffic 1 .6 1.8; 2.04–2. 16;...

Ngày tải lên: 14/08/2014, 01:21

... 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 ... nT b ) cos(2πf n t +φ n )(4.22) 0 2 4 7 1 6 5 3 0 2 4 7 1 6 5 0 2 7 1 3 6 5 0 2 4 7 1 3 6 5 0 4 7 1 3 6 5 2 0 4 7 1 3 6 5 0 2 4 7 1 3 6 5 0 2 4 7 1 3 6...

Ngày tải lên: 14/08/2014, 01:21

... low-priority t CW 1 CW 2 CW n Figure 5.55 Realization of priorities in contention MAC protocols 160 Broadband Powerline Communications Networks C C C C 0 S S 0 01234 567 t Collision resolution interval (CRI) Subset 1 Subset 2 Sub-subset ... investigated for implementa- tion in various telecommunications technologies (ATM, modern IP networks, etc.). Thus, 184 Broadband Powerline...

Ngày tải lên: 14/08/2014, 01:21

... 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...

Ngày tải lên: 14/08/2014, 01:21

... (ms) Figure 6. 21 Mean transmission delay – rare requests (average packet size: 1500 bytes) 2 26 Broadband Powerline Communications Networks confirmed by the simulation results (Fig. 6. 17). T sig = t RTT 2 + ... Ack. Request Figure 6. 33 Slot structure for two-step reservation procedure 224 Broadband Powerline Communications Networks In Eq. 6. 1 l = l RTT max , the total...

Ngày tải lên: 14/08/2014, 01:21

... network 14 Broadband Powerline Communications Networks 2.2 Powerline Communications Systems 2.2.1 Historical Overview PowerLine Communications is the usage of electrical power supply networks for ... areas, low-voltage networks are realized with underground cables, whereas in rural areas they exist usually as overhead networks. 32 Broadband Powerline Communications...

Ngày tải lên: 17/07/2014, 09:29