Subnetwork partitioning and section restoration in translucent optical networks
Author
Karasan, Ezhan
Arısoylu, M.
Date
2003Source Title
Proceedings of SPIE Vol. 5285, OptiComm 2003: Optical Networking and Communications
Print ISSN
0277-786X
Publisher
SPIE
Volume
5285
Pages
114 - 125
Language
English
Type
Conference PaperItem Usage Stats
146
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views
103
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downloads
Abstract
We discuss the problem of designing translucent optical networks composed of restorable, transparent subnetworks interconnected via transponders. We formulate the problem of designing restorable subnetworks in translucent networks as an Integer Linear Programming (ILP) problem, where the subnetworks are determined subject to the constraints that each subnetwork satisfies size limitations and it is 2-connected. A greedy heuristic algorithm for the same problem is also proposed for planar network topologies. We propose section restoration for translucent networks where failed connections are rerouted inside the subnetwork which contains the failed link. The network design problem of determining working and restoration capacities with section restoration is formulated as an ILP problem. Numerical results show that section restoration generates fiber costs which are close to those with the path restoration technique for the mesh topologies used in this study. It is also shown that the number of transponders with the translucent optical network is substantially reduced compared to opaque networks.
Keywords
Optical restorationSubnetwork partitioning
Translucent optical networks
Algorithms
Costs
Heuristic methods
Integer programming
Linear programming
Optical communication
Optical fibers
Permalink
http://hdl.handle.net/11693/27500Published Version (Please cite this version)
https://doi.org/10.1117/12.533305Collections
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