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An Integer Programming Approach to Packing Lightpaths on WDM Networks  

Lee, Kyungsik (School of Industrial Information & Systems Engineering, Hankuk University of Foreign Studies)
Lee, Taehan (Department of Industrial and Information System Engineering, Chonbuk National University)
Park, Sungsoo (Department of Industrial Engineering, KAIST)
Publication Information
Journal of Korean Institute of Industrial Engineers / v.32, no.3, 2006 , pp. 219-225 More about this Journal
Abstract
We consider a routing and wavelength assignment (RWA) for the efficient operation of WDM networks. For a given physical network, a set of selected pairs of nodes, the number of required connections for each selected pair of nodes, and a set of available wavelengths, the RWA is to realize as many connections as possible without wavelength collision. We give an integer programming formulation and an algorithm based on column generation. Though the proposed algorithm does not guarantee optimal solutions, test results show that the algorithm gives probably good solutions.
Keywords
WDM; RWA; Integer Programming; Column Generation;
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