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A New Approach to the Provision of Non-simple Node-Protecting p-Cycles in WDM Mesh Networks

  • Honghui Li
  • Brigitte Jaumard
  • Xueliang Fu
Conference paper
  • 1.6k Downloads
Part of the Communications in Computer and Information Science book series (CCIS, volume 143)

Abstract

This paper proposed a new approach to the provision of nonsimple node-protecting p-cycles in survivable WDM mesh networks. The traditional designs of non-simple p-cycles model the problem as an Integer Linear Program (ILP), and require the pre-enumeration of all possible p-cycles. The resulting ILP becomes less tractable for a large network because there may exist a huge number of p-cycles. We proposed a new solution method using large scale optimization tools, i.e., Column Generation (CG). With CG, p-cycles are generated dynamically when needed. Numerical results show clearly that our new proposed method has a big advantage over the existing one in the capacity efficiency.

Keywords

Non-simple p-cycles node protection 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Honghui Li
    • 1
    • 2
  • Brigitte Jaumard
    • 2
  • Xueliang Fu
    • 1
  1. 1.CCIEInner Mongolia Agricultural UniversityHohhotP.R. China
  2. 2.CSEConcordia UniversityMontrealCanada

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