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      • Department of Electrical and Electronics Engineering
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      Subnetwork partitioning and section restoration in translucent optical networks

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      Author
      Karasan, Ezhan
      Arısoylu, M.
      Date
      2003
      Source 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 Paper
      Item Usage Stats
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      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 restoration
      Subnetwork partitioning
      Translucent optical networks
      Algorithms
      Costs
      Heuristic methods
      Integer programming
      Linear programming
      Optical communication
      Optical fibers
      Permalink
      http://hdl.handle.net/11693/27500
      Published Version (Please cite this version)
      https://doi.org/10.1117/12.533305
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      • Department of Electrical and Electronics Engineering 3524
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