Monitoring function in optical network

... equalisation techniques (Omella et al. 2009b). 2.3 Monitoring and Signal Processing in Optical Networks 2.3.1 Monitoring The engineering of high-bit-rate WDM optical transmission systems requires a careful ... which are addressing some of the challenges of PON monitoring. Still, there are no standardised and mature monitoring methods. Ideal optical monitoring framework in P...

Ngày tải lên: 30/05/2014, 21:46

... wavelength-routed network. An all -optical WDM network consists of optical cross-connects (OXCs) interconnected by fiber links, in which an OXC can switch an optical signal from an input to an output link ... Survivable Routing in WDM Networks The failure in optical communication networks such as accidental fiber link disruption or switching device disorder will affect a h...

Ngày tải lên: 28/03/2014, 13:20

... treat- ment and lung function in further prospective studies. Conclusions Our findings are in line with previous observations show- ing an inverse association between blood pressure and lung function. Furthermore, ... lung function, whereas other antihypertensive medications have no effect on lung function. Our findings are in line with previous observations that blood pressure a...

Ngày tải lên: 25/10/2012, 10:45

... 126 Switching versus Routing: What’s the Difference? 127 Switching in the Optical Domain 127 Agilent Technologies 128 Other Switching Solutions 130 Routing in the Optical Domain 130 Network Management ... networking is happening. In the last two years, optical networking has risen into the public con- sciousness in many different ways. It has become the next great techno- logi...

Ngày tải lên: 02/03/2013, 17:00

... working on proposals to provide better QOS control in IP networks, i.e., going beyond best effort to provide some assurance for QOS o Work in Progress includes Differentiated Services, and Integrated ... distributed in [1,1/(p-tmp)] o Example: l max-p = 0.02 l If average = (th-max + th-min)/2, one packet is rejected every 50 packets th-min th-max 1 p-tmp max-p Queue Management 3 Imp...

Ngày tải lên: 06/04/2013, 11:05

... splice points and/or access point connectors, to the optical network terminals (ONTs) at 32 homes. The cascaded splitter approach is normally configured with a 1x4 splitter residing in the OSP ... loss (ORL); and link mapping or characterization via OTDR trace development. These tests require certain network features for adequate data collection, including a well-defined path that c...

Ngày tải lên: 16/10/2013, 05:15

... of Engineering Blekinge Institute of Technology SWEDEN © 2006 Stefan Chevul Department of Telecommunication Systems School of Engineering Publisher: Blekinge Institute of Technology Printed by ... NETWORKS Stefan Chevul Wireless and Mobile Internet have changed the way people and businesses operate. Communica - tion from any Internet access point, including wi - reless networks such as UMTS,...

Ngày tải lên: 18/10/2013, 12:15

... a network outside of cutting into the optical cable. Other considerations The risk of inadvertent failure also increases when cutting and splicing cables, leaving a possibility of service interruption ... Issue 3. ADC excels in each of these Splicing vs. connectorization in FTTP networking 2 measurements by offering industry-leading optical and mechanical specifications, backed by i...

Ngày tải lên: 18/10/2013, 14:15

... Illustrating inseparability. 548 6.55 Illustrating Min-Int. 550 6.56 Random network. 551 6.57 Max Reuse versus Min Reuse channel allocation. 552 6.58 k-SP routing. 553 6.59 k-SP versus Min-Int routing. ... Mesh Topologies 663 8.3 Optical- Layer Protection: Point-to-Point and Ring Architectures 669 8.3.1 Point-to-Point Systems 669 8.3.2 Self-Healing Optical Rings 672 8.4 Optical- Layer Pr...

Ngày tải lên: 24/10/2013, 04:15

... multiple incoming links feed into a single outgoing link (e.g., several Local Area Networks (LANs) links are connected to a Wide Area Network (WAN) link). The core routers of the backbone networks ... packet transmitted in mini-cycle i is received in mini-cycle (i+1) and increases cwnd by one MSS. Further- more, ACKs for consecutive packets released in mini-cycle i arrive in interva...

Ngày tải lên: 26/10/2013, 17:15