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Designing Fast and Bandwidth Efficient Protection Scheme for WDM Optical Networks [chapter]

Yu Lin, Haitham S. Hamza, Jitender S. Deogun
2006 Lecture Notes in Computer Science  
Similar to pre-cross-connected trails (PXTs) protection scheme, PXSFirst ensures that all backup paths are pre-crossconnected, and hence eliminates the switching configuration delay along backup paths.  ...  The goal of the PXSFirst scheme is to achieve fast recovery, while maximizing bandwidth sharing to improve bandwidth utilization.  ...  One of the recent approaches to accomplish this is the pre-cross-connect trail (PXT) [11] .  ... 
doi:10.1007/11753810_33 fatcat:htdvu44dgbbotir5y7jnvgz3ei

Fast Optical Layer Mesh Protection Using Pre-Cross-Connected Trails

T.Y. Chow, F. Chudak, A.M. Ffrench
2004 IEEE/ACM Transactions on Networking  
The PXT protection scheme achieves fast restoration speeds, and our simulations, which have been carefully chosen using ideas from experimental design theory, show that the bandwidth efficiency of the  ...  This leads to the concept of a pre-cross-connected trail or PXT, which is a structure that is more flexible than rings and that adapts readily to both path-based and link-based schemes and to both static  ...  The authors also thank the reviewers for suggesting numerous improvements.  ... 
doi:10.1109/tnet.2004.828951 fatcat:i7wfor2m2jgyjbu4mckbz5nkau

PXT-based path protection for multicast sessions in WDM networks

Taiming Feng, Lu Ruan, Chuang Wang, Hua Qin
2010 2010 IEEE Sarnoff Symposium  
The basic idea is to use pre-crossconnected PXTs to protect individual destinations on multicast trees.  ...  Due to the huge bandwidth provided by an optical fiber, a fiber cut in an optical network will disrupt a large number of communication sessions.  ...  Based on this observation, they proposed the concept of pre-cross-connected trail (PXT).  ... 
doi:10.1109/sarnof.2010.5469716 fatcat:jlh4loeotjbj5ns3llbexwjchm

On Traffic Grooming Choices for IP over WDM networks

Srivatsan Balasubramanian, Arun K. Somani
2006 2006 3rd International Conference on Broadband Communications, Networks and Systems  
Based on our simulations on random graphs of various diameters, we identify the threshold router speeds at which light-trails can compete with the electronic grooming solution for a given network scenario  ...  We provide an overview of the optical and electronic grooming techniques available with focus on IP as the client layer.  ...  BI provides an efficient way of abstracting resource availability in a communication network. BI clusters nodes in the network according to bandwidth availability.  ... 
doi:10.1109/broadnets.2006.4374410 dblp:conf/broadnets/BalasubramanianS06 fatcat:ah2paitul5cwtacyllct6kczpi

Proactive mitigation of impact of wormholes and sinkholes on routing security in energy-efficient wireless sensor networks

Huzaifa Al Nahas, Jitender S. Deogun, Eric D. Manley
2007 Wireless networks  
"On The Bandwidth Efficiency of Pre-Crossconnected Trails," Manley, E. D., Hamza, H. S. and Deogun, J. S.  ...  Journal of Optical Networking (JON), Vol. 6, Issue 4, pp. 322-340, March 2007. 36. "Efficient use of protection bandwidth and switching resources in optical WDM net- works," Eric D.  ... 
doi:10.1007/s11276-007-0060-7 fatcat:tlhrsjpfpzbere5krnf3eqnl4y

Just-in-time signaling for WDM optical burst switching networks

J.Y. Wei, R.I. McFarland
2000 Journal of Lightwave Technology  
It features out-of-band control signal processing that eliminates buffering of data-burst at intermediate nodes, while minimizing the setup time, and maximizing the cross-connect bandwidth efficiency.We  ...  The JIT-OBS paradigm is designed for ultra-low-latency unidirectional transport of data-bursts across an optical network. It combines the desirable features of circuit-switching and packet-switching.  ...  "The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official polices, either express or implied, of the Army Research Laboratory  ... 
doi:10.1109/50.908815 fatcat:2rgtrv3pgfdajgf2xgfdtrsnle

Failure Localization for Shared Risk Link Groups in All-Optical Mesh Networks Using Monitoring Trails

J Tapolcai, Pin-Han Ho, L Ronyai, P Babarczi, Bin Wu
2011 Journal of Lightwave Technology  
Extensive simulation is conducted on hundreds of randomly generated planar topologies to verify the proposed approach in terms of the number of required m-trails and the computational efficiency.  ...  by collecting the alarms of the interrupted m-trails.  ...  All-optical out-of-band monitoring via a set of pre-crossconnected supervisory lightpaths for fiber segments has been considered an effective approach to achieve fast failure localization in all-optical  ... 
doi:10.1109/jlt.2011.2131120 fatcat:4kqem6qwwfczjgpse7c47sjuxm

Neighborhood Failure Localization in All-Optical Networks via Monitoring Trails

Janos Tapolcai, Pin-Han Ho, Peter Babarczi, Lajos Ronyai
2015 IEEE/ACM Transactions on Networking  
Bound analysis is performed on the minimum bandwidth required for m-trails under the proposed G-NFL problem. Then a simple yet efficient heuristic approach is presented.  ...  By assuming every node can obtain the on-off status of traversing m-trails and W-LPs via lambda monitoring, the proposed G-NFL problem routes a set of m-trails such that each node can localize any failure  ...  Thus, a feasible G-NFL solution consists of a set of m-trails such that each node can localize the failed links in its neighborhood based on the on-off status of a subset of the m-trails and/or W-LPs that  ... 
doi:10.1109/tnet.2014.2342222 fatcat:sw2myd4tpng5habh7rogam76de

Routing and protection in GMPLS networks: From shortest paths to optimized designs

A. Elwalid, D. Mitra, I. Saniee, I. Widjaja
2003 Journal of Lightwave Technology  
The results indicate that DBR outperforms SPF and CSPF under a wide range of operating conditions, and is robust to inaccuracies in the estimation of the traffic demand matrix.  ...  traffic demand information used in the design of DBR paths is different from the actual traffic demand.  ...  Then all links with available bandwidth less than " is pruned, and shortest path routing is run on the pruned topology using the pre-computed weights.  ... 
doi:10.1109/jlt.2003.819528 fatcat:zbguo4a3qfaapieiqdijusxejq

Optical networks—the electro-optic reality

Andrzej Jajszczyk
2005 Optical Switching and Networkning Journal  
A general overview of the current status and future trends in optical networking is given.  ...  The current status and prospects for photonic switching are briefly presented. The paper is concluded with an overview of the control plane for optical transport networks.  ...  One of the most challenging problems in optical networks is efficient utilization of bandwidth provided by a single wavelength.  ... 
doi:10.1016/j.osn.2004.11.002 fatcat:iwimsewcmzdkle6qi6pkuo7zwe

Evolution toward the next-generation core optical network

Saleh, Simmons
2006 Journal of Lightwave Technology  
With high-bandwidth and on-demand applications continuing to emerge, next-generation core optical networks will require significant improvements in capacity, configurability, and resiliency.  ...  A central theme is how to harness the trend of optics scaling better than electronics.  ...  77] , p-cycles [78] , and pre-cross-connected trails [79] .  ... 
doi:10.1109/jlt.2006.880608 fatcat:7be6hqufvbd7flvtmrkrngflha

Protection and restoration in DWDM networks: recent developments and issues

Sudheer Dharanikota, Raj Jain, Benjamin B. Dingel, Brewster R. Hemenway, Achyut K. Dutta, Ken-Ichi Sato
2002 Optical Transmission Systems and Equipment for WDM Networking  
Protection using rings has been the common method of reducing downtime on SONET/SDH based telecommunication networks.  ...  Here domain refers to an entire region of the network. In particular, Shared Risk Group (SRG) concepts being developed at IETF and OIF is explained.  ...  Protection paths may be pre-computed or provisioned on demand. In either case, the protection path may be dedicated, shared, or best effort.  ... 
doi:10.1117/12.475124 fatcat:p4ajxkfuzfamrhwn7sxepwezp4

Optimal Algorithms for Near-Hitless Network Restoration via Diversity Coding [article]

Serhat Nazim Avci, Ender Ayanoglu
2012 arXiv   pre-print
The first technique pre-provisions static traffic whereas the second technique carries out the dynamic provisioning of the traffic on-demand.  ...  A Mixed Integer Programming (MIP) formulation and an algorithm based on Integer Linear Programming (ILP) are developed for pre-provisioning and dynamic provisioning, respectively.  ...  "Hot-standby" [7] and "pre-crossconnected trials" (PXT) [8] are developed based on the same idea.  ... 
arXiv:1205.1552v1 fatcat:qclnujl225cdnjlxulpxavpx24

Optimal algorithms for near-hitless network restoration via diversity coding

Serhat Nazim Avci, Ender Ayanoglu
2012 2012 IEEE Global Communications Conference (GLOBECOM)  
The first technique pre-provisions static traffic whereas the second technique carries out the dynamic provisioning of the traffic ondemand.  ...  Furthermore, the extra spare capacity requirement of diversity coding is competitive with the others.  ...  "Hot-standby" [7] and "pre-crossconnected trials" (PXT) [8] are developed based on the same idea.  ... 
doi:10.1109/glocom.2012.6503389 dblp:conf/globecom/AvciA12 fatcat:6vogwc3juvhn3az7jk2mzc5tde

Optimal Algorithms for Near-Hitless Network Restoration via Diversity Coding

Serhat Nazim Avci, Ender Ayanoglu
2013 IEEE Transactions on Communications  
The first technique pre-provisions static traffic whereas the second technique carries out the dynamic provisioning of the traffic ondemand.  ...  Furthermore, the extra spare capacity requirement of diversity coding is competitive with the others.  ...  "Hot-standby" [7] and "pre-crossconnected trials" (PXT) [8] are developed based on the same idea.  ... 
doi:10.1109/tcomm.2013.071013.120817 fatcat:6dsuprxd5rbifdxwp6ewagb4om
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