Quantifying the restoration capacity in optical mesh networks

Authors:
Claunir Pavan;Rui Manuel Morais;Armando Nolasco Pinto
Affiliations:
Departamento de Electrónica, Telecomunicações e Informática, Universidade de Aveiro and Instituto de Telecomunicações, Aveiro, Portugal;Instituto de Telecomunicações, Aveiro, Portugal;Departamento de Electrónica, Telecomunicações e Informática, Universidade de Aveiro and Instituto de Telecomunicações, Aveiro, Portugal
Venue:
NGI'09 Proceedings of the 5th Euro-NGI conference on Next Generation Internet networks
Year:
2009

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Abstract

The amount of spare capacity for restoration is usually calculated using network design tools. This task depends on the detailed information about the network topology and traffic model. In order to allow a preliminary evaluation of the networks, we propose an approximation to estimate the spare capacity required to a mesh network recover from any single link failure. The expression is based on statistical methods and does not requires knowledge of the network topology. We also provide experimental results evaluating the performance of the proposed approximation against a previous published one and a network design tool.