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http://dx.doi.org/10.4218/etrij.13.0212.0271

Cost-Efficient Virtual Optical Network Embedding for Manageable Inter-Data-Center Connectivity  

Perello, Jordi (Computer Architecture Department, Universitat Politecnica de Catalunya)
Pavon-Marino, Pablo (Department of Information Technologies and Communications, Universidad Politecnica de Cartagena)
Spadaro, Salvatore (Signal Theory and Communications Department, Universitat Politecnica de Catalunya)
Publication Information
ETRI Journal / v.35, no.1, 2013 , pp. 142-145 More about this Journal
Abstract
Network virtualization opens the door to novel infrastructure services offering connectivity and node manageability. In this letter, we focus on the cost-efficient embedding of on-demand virtual optical network requests for interconnecting geographically distributed data centers. We present a mixed integer linear programming formulation that introduces flexibility in the virtual-physical node mapping to optimize the usage of the underlying physical resources. Illustrative results show that flexibility in the node mapping can reduce the number of add-drop ports required to serve the offered demands by 40%.
Keywords
VON; embedding; cost-efficiency; MILP;
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