Results 1 - 10 of 373

Near-optimal approaches for shared-path protection

by Canhui (sam Ou, Jing Zhang, Hui Zang, Laxman H. Sahasrabuddhe, Biswanath Mukherjee - In: ICC’03 , 2003
"... Abstract — This paper investigates the problem of dynamic shared-path-protected lightpath provisioning in optical mesh networks employing wavelength-division multiplexing (WDM). We prove that the problem of finding an eligible pair of working and backup paths for a new lightpath request requiring sh ..."
Abstract - Cited by 7 (3 self) - Add to MetaCart
shared-path protection under the current network state is NP-complete. We develop a heuristic, called CAFES, to compute a feasible solution and an algorithm, called OPT, to optimize resource consumption for a given solution. The merits of our approaches are that they capture the essence of shared-path

New and improved approaches for shared-path protection in wdm mesh networks

by Canhui (sam Ou, Student Member, Jing Zhang, Student Member, Hui Zang, Laxman H. Sahasrabuddhe, Biswanath Mukherjee - J. Lightw. Technol , 2004
"... Abstract—This paper investigates the problem of dynamic survivable lightpath provisioning in optical mesh networks employing wavelength-division multiplexing (WDM). In particular, we focus on shared-path protection because it is resource efficient due to the fact that backup paths can share waveleng ..."
Abstract - Cited by 30 (4 self) - Add to MetaCart
Abstract—This paper investigates the problem of dynamic survivable lightpath provisioning in optical mesh networks employing wavelength-division multiplexing (WDM). In particular, we focus on shared-path protection because it is resource efficient due to the fact that backup paths can share

Backup Path Re-optimizations for Shared Path Protection

by B. Jaumard, D. L. Truong - in Multi-domain Networks,” in Proc. IEEE Globecom 2006 , 2006
"... Abstract — Within the context of dynamic routing models for shared path protection in multi-domain networks, we propose a backup path re-optimization phase with possible rerouting of the existing backup paths in order to increase the bandwidth sharing among them while minimizing the network backup c ..."
Abstract - Cited by 2 (2 self) - Add to MetaCart
Abstract — Within the context of dynamic routing models for shared path protection in multi-domain networks, we propose a backup path re-optimization phase with possible rerouting of the existing backup paths in order to increase the bandwidth sharing among them while minimizing the network backup

Exploiting Connection-Holding Time to Improve Resource Efficiency for Dynamic Provisioning in Shared-Path Protection

by Massimo Tornatore, Canhui (sam Ou, Achille Pattavina, Biswanath Mukherjee
"... Abstract: For dynamic provisioning of shared-path-protected connections in an optical mesh network, we investigate a new algorithm which exploits the holding time of connections to achieve significant reduction in resource overbuild. c ○ Optical Society of America OCIS codes: (060.4250) Networks; (0 ..."
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Abstract: For dynamic provisioning of shared-path-protected connections in an optical mesh network, we investigate a new algorithm which exploits the holding time of connections to achieve significant reduction in resource overbuild. c ○ Optical Society of America OCIS codes: (060.4250) Networks

1 Shared Path Protection in Multi-domain Optical Mesh Networks

by Centre De Recherche, B. Thiongane, D. L. Truong, Centre De Recherche Isci, B. Thiongane, Centre De Recherche, D. L. Truong
"... Copyright c○2005 CR-ISCI 2 The routing problem for shared path protection in multi-domain optical mesh networks is difficult due to the lack of complete and global knowledge on the network topology and bandwidth allocation. To overcome this difficulty, we propose an aggregated network modeling by ov ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
Copyright c○2005 CR-ISCI 2 The routing problem for shared path protection in multi-domain optical mesh networks is difficult due to the lack of complete and global knowledge on the network topology and bandwidth allocation. To overcome this difficulty, we propose an aggregated network modeling

Reliability Differentiation in Energy Efficient Optical Networks with Shared Path Protection

by unknown authors
"... Abstract—Energy and resource efficiency are two contrast-ing objectives to optimize in dynamic and survivable optical networks. Known solutions for improving the energy efficiency include the use of the shared path-protection (SPP) mechanism and of a low power consuming mode (i.e., sleep) for protec ..."
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Abstract—Energy and resource efficiency are two contrast-ing objectives to optimize in dynamic and survivable optical networks. Known solutions for improving the energy efficiency include the use of the shared path-protection (SPP) mechanism and of a low power consuming mode (i.e., sleep

Optical Network Net Present Value Optimization in Shared Path Protection Environments

by Marc Ruiz, Luis Velasco, Jaume Comellas, Gabriel Junyent
"... Abstract- Network operators are facing hard competition for opportunities in the telecommunications market, thus network investments must be carefully evaluated from the costs and revenues viewpoint before the decision making process. Since a great part of core network operators ’ revenues comes fro ..."
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from the provisioned connectivity services, in this work we study the value expected to generate by optical networks when provisioning differentiated services in Shared Path Protection (SPP) environments. In this regard, two wavelength partitioning schemes are compared: the shared (sh

Dynamic routing for Shared Path Protection in Multidomain optical mesh networks

by Centre De Recherche Isci, D. L. Truong, B. Thiongane, B. Thiongane, Centre De Recherche, Centre De Recherche - OSA Journal of Optical Networking , 2006
"... Copyright c○2006 CR-ISCI ..."
Abstract - Cited by 10 (4 self) - Add to MetaCart
Copyright c○2006 CR-ISCI

Performance Evaluation of Efficient Shared Path Protection in Mesh WDM Networks

by Chadi Assi, Ahmad Khalil, Nasir Ghani, Abdallah Shami, Mohamed Ali
"... The efficient use of network capacity in shared restoration schemes strongly depends upon the path selection procedure. In this paper we propose and evaluate efficient shared path selection algorithms for restoration of connections in optical networks. Namely, two distributed path selection algorith ..."
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The efficient use of network capacity in shared restoration schemes strongly depends upon the path selection procedure. In this paper we propose and evaluate efficient shared path selection algorithms for restoration of connections in optical networks. Namely, two distributed path selection

PHOTO: An Efficient Shared-Path-Protection Strategy Based on Connection-Holding-Time Awareness

by Massimo Tornatore, Student Member, Canhui (sam Ou, Student Member, Jing Zhang, Achille Pattavina, Senior Member, Biswanath Mukherjee, Senior Member
"... Abstract—Recent trends in bandwidth markets show that customers are tending to ask providers for a large bandwidth but for a limited amount of time to support new short-term bandwidthhungry applications. In order to meet these new requirements, progress in network technologies (fast and reconfigurab ..."
Abstract - Cited by 5 (1 self) - Add to MetaCart
to a holding-time-unaware, but otherwise shared-pathefficient, approach. Index Terms—Dynamic traffic, fault management, holding time, lightpath, optical network, resource overbuild, shared-path protection, WDM. I.
Results 1 - 10 of 373