Abstract
In this article we study the realistic network topology of Synchronous Digital Hierarchy (SDH) networks. In such a network, a customer must be a node of a ring. We first show that there is no two-index integer formulation for this problem. We then present a mathematical model for the NDRSP along with some classes of valid inequalities that are used as cutting planes in a Branch-and-Cut approach. We also study the dominant polytope of the NDRSP and introduce several polyhedral results. Finally, we present our Branch-and-Cut algorithm and give some experimental results on both random and real instances.
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Fouilhoux, P., Questel, A. (2012). The Non-Disjoint m-Ring-Star Problem: Polyhedral Results and SDH/SONET Network Design. In: Mahjoub, A.R., Markakis, V., Milis, I., Paschos, V.T. (eds) Combinatorial Optimization. ISCO 2012. Lecture Notes in Computer Science, vol 7422. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32147-4_10
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DOI: https://doi.org/10.1007/978-3-642-32147-4_10
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