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A novel double-link failure restoration algorithm based on optical signal-to-noise ratio for all-optical networks

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6 Author(s)
de Freitas, R.C. ; Dept. of Electron. & Syst., Fed. Univ. of Pernambuco (UFPE), Recife, Brazil ; Martins-Filho, J.F. ; Silva, R.C.L. ; Bastos-Filho, C.J.A.
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In this paper, we propose a novel algorithm to restore calls upon double-link failures in all-optical networks. Our proposal aims to restore all the lightpaths disrupted by each failure. The algorithm performs a path restoration looking for the route that presents the higher optical signal-to-noise ratio (OSNR). We compared our proposal to three other well known approaches in the literature. We observed that our proposal obtained lower failure rates in the restoration process for three different studied scenarios considering several physical layer impairments.

Published in:

Microwave & Optoelectronics Conference (IMOC), 2011 SBMO/IEEE MTT-S International

Date of Conference:

Oct. 29 2011-Nov. 1 2011