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Configuration of p-Cycles in WDM Networks with Partial Wavelength Conversion

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Abstract

The p-cycle concept offers a capacity-efficient and rapid protection mechanism for mesh-restorable networks. This work investigates the configuration of span protecting p-cycles in wavelength division multiplexing (WDM) networks with limited wavelength conversion. An important point of view is the relation between the costs associated with the number of required wavelength converters, and the protection capacity-efficiency achieved. We formulate mathematical models and solve the respective optimization problems for a pan-European network as a test-case. An interesting finding is that the total number of converters required for the network as a whole can be greatly reduced, with only a small increase in spare capacity for protection by a strategy of associating wavelength converters with the access points between a pure wavelength path (WP) working layer and a set of pure WP p-cycle protection structures.

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Authors and Affiliations

  1. Institute of Communication Networks, Munich University of Technology, Arcisstr. 21, 80333, Munich, Germany

    Dominic A. Schupke & Matthais C. Scheffel

  2. TRLabs, 9107-116 Street, Edmonton, Alberta, T6G 2V4, Canada

    Wayne D. Grover

  3. University of Alberta, 114 Street - 89 Avenue NW, Edmonton, Alberta, T6G 2M7, Canada

    Wayne D. Grover

Authors
  1. Dominic A. Schupke
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  2. Matthais C. Scheffel
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  3. Wayne D. Grover
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Correspondence to Dominic A. Schupke.

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Schupke, D.A., Scheffel, M.C. & Grover, W.D. Configuration of p-Cycles in WDM Networks with Partial Wavelength Conversion. Photonic Network Communications 6, 239–252 (2003). https://doi.org/10.1023/A:1025675204127

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  • DOI: https://doi.org/10.1023/A:1025675204127

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