Broadband Powerline Communications Networks Design phần 1 ppt
Broadband Powerline Communications Networks Design phần 1 ppt
... Strategies 15 1 5.3 .1 Classification of MAC Protocols 15 3 5.3.2 Contention Protocols 15 4 5.3.3 Arbitration Protocols 16 9 5.3.4 IEEE 802 .11 MAC Protocol 17 7 5.4 Traffic Control 18 1 5.4 .1 Duplex Mode 18 1 5.4.2 ... Access Networks 11 5 4.4.3 Service Classification 12 1 4.5 Summary 12 3 5 PLC MAC Layer 12 5 5 .1 Structure of the MAC Layer 12 5 5 .1. 1 MAC Layer Components...
Ngày tải lên: 14/08/2014, 01:21
Broadband Powerline Communications Networks Design phần 5 pptx
... example, Fig. 4. 21 shows the structure of a (3,2,3) convolutional coder, whose generators are g (1, 1) = 10 0; g (2 ,1) = 01 g (1, 2) = 11 1; g (2,2) = 11 g (1, 3) = 0 01; g (2,3) = 10 This code is pointed ... Eq. (4. 51) . c = c (1) 1 c (2) 1 c (1) 2 c (2) 2 c (1) 3 c (2) 3 (4. 51) 10 6 Broadband Powerline Communications Networks + + + MUX message bits Code bi...
Ngày tải lên: 14/08/2014, 01:21
Broadband Powerline Communications Networks Design phần 6 pptx
... variable PLC MAC Layer 13 7 t +1 1 t +1 1 t +1 1 t +1 1 t +1 1 t +1 1 1 011 011 0 10 10 10 0 1 S a ( t ) C a ( t ) S a ( t )C a ( t ) S b ( t ) C b ( t ) S b ( t )C b ( t ) Figure 5 .10 CDMA signal generation/coding ... orthogonal: x i : 1 1 +1 +1 1 1 +1 +1 y i 1 : +1 +1 1 1 +1 +1 1 1. To consider a general case, we observe two code sequences x and y, w...
Ngày tải lên: 14/08/2014, 01:21
Broadband Powerline Communications Networks Design phần 10 pptx
... protocol, 17 6, 19 5, 19 8, 218 Resource sharing, 12 5, 15 1 Reverse sequence generation, 14 5 Rivest’s Pseudo-Bayesian algorithm, 15 9 Round-trip time, 17 1, 17 3, 223 RTS/CTS, 17 8 Send-and-Wait ARQ, 11 1 Selective-reject ... 12 8 TH-CDMA, 13 8 Time division duplex, 18 1 Token passing, 16 9 Token-Ring, 16 9 Token-bus, 17 0 Traffic class, 12 2 Traffic control, 18 1 Traffic m...
Ngày tải lên: 14/08/2014, 01:21
Broadband Powerline Communications Networks Design phần 3 pdf
... broadcast communications 1. 6 1. 8 Maritime DGPS 1. 8–2.0; 2.0–2.02 Radio Amateur Datamode, CW, fax, phone, etc. 1. 81 1. 85; 3.5–3.8; 7.0–7 .1; 10 .1 10 .15 ; 14 .0 14 .2; 14 .25 14 .35; 18 .0 18 .16 ; 21. 0– 21. 4; 24.8–24.9; 28.0–29.7 Military ... Traffic 1. 6 1. 8; 2.04–2 .16 ; 2.3–2.5; 2.62–2.65; 2.65– 2.8; 3.2–3.4; 4.0–4.4; 6.2–6.5; 8 .1 8.8; 12 .2 13 .2; 16 .3 17 .4; 18 .7...
Ngày tải lên: 14/08/2014, 01:21
Broadband Powerline Communications Networks Design phần 4 potx
... m ^m Decoder Data sink Figure 4 .15 General model of coded communications system Table 4.2 Example of mapping function of a binary (2,5) linear code m c 00 011 00 01 1 010 1 10 10 111 11 11 000 Binary (5,2) code ... c 00 011 00 01 1 010 1 10 10 111 11 11 000 Binary (5,2) code with rate r = 2/5, where C ={ 011 00, 10 1 01, 10 111 , 11 000} and the mapping function defined by Ta...
Ngày tải lên: 14/08/2014, 01:21
Broadband Powerline Communications Networks Design phần 7 pot
... becomes S a→0 = G G +1 (5.33) So, in this case the network utilization never decreases to zero. 0.0 0.2 0.4 0.6 0.8 1. 0 0.0 01 0. 01 0 .1 1 10 10 0 10 00 a = 1. 0 a = 0 .1 a = 0. 01 a = 0.0 01 a = 0 Utilization Offered load Figure ... with the probability 1 − P to sense the medium again. If the transmission system 18 2 Broadband Powerline Communications Networks Uplink...
Ngày tải lên: 14/08/2014, 01:21
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: 0-470-857 41- 2 200 Broadband Powerline Communications Networks a ... affected, or not affected by the disturbances. 214 Broadband Powerline Communications Networks Packet size (bytes) 15 00 Probability 0.3 017 40 552 576 0 .12...
Ngày tải lên: 14/08/2014, 01:21
Broadband Powerline Communications Networks Design phần 9 potx
... one-step protocol in networks with both rare and frequent transmission requests. 234 Broadband Powerline Communications Networks 1 10 10 0 10 00 10 ,000 10 0,000 1e + 06 50 10 0 15 0 200 250 300 350 ... load per station under certain RTT P – average packet size 228 Broadband Powerline Communications Networks 10 10 0 10 00 10 ,000 50 10 0 15 0 200 250 300 350 40...
Ngày tải lên: 14/08/2014, 01:21
broadband powerline communications networks
... bands for powerline communications Band Frequency range (kHz) Max. transmission amplitude (V) User dedication A 9–95 10 Utilities B 95 12 5 1. 2 Home C 12 5 14 0 1. 2 Home 26 Broadband Powerline Communications ... Broadband Powerline Communications Networks 2.2 Powerline Communications Systems 2.2 .1 Historical Overview PowerLine Communications is the usage of e...
Ngày tải lên: 17/07/2014, 09:29