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2011 | nr 4 | 108-114
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Guaranteed Protection in Survivable WDM Mesh Networks - New ILP Formulations for Link Protection and Path Protection

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In this paper we propose new simple integer linear programs (ILPs) formulations for minimizing capacity (in wavelength link) utilization in survivable WDM network. The study examines the performance of shared based protection schemes, such as path protection scheme and link protection scheme under single fiber failure. The numerical results obtained show a reduction in capacity utilization using random traffic compared to the reported ILP formulation. We also present the results using Poisson's traffic to identify the frequently used links for the widely used NSF network. The proposed work not only reduces the wavelength consumption in different traffic scenarios but also efficient in terms of simulation time.
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Bibliogr. 16 poz., rys., tab.
  • Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology, Telierganj, Allahabad-211004, India,
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