Title :
A novel double-link failure restoration algorithm based on optical signal-to-noise ratio for all-optical networks
Author :
De Freitas, Rodrigo C. ; Martins-Filho, Joaquim F. ; Silva, Rodrigo C L ; Bastos-Filho, Carmelo J A ; Pereira, Helder A. ; Chaves, Daniel A R
Author_Institution :
Dept. of Electron. & Syst., Fed. Univ. of Pernambuco (UFPE), Recife, Brazil
fDate :
Oct. 29 2011-Nov. 1 2011
Abstract :
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.
Keywords :
failure analysis; optical fibre networks; telecommunication network routing; OSNR; all-optical networks; double-link failure restoration algorithm; optical WRON; optical signal-to-noise ratio; path restoration; restoration process; wavelength-routed optical network; All-optical networks; Heuristic algorithms; Optical noise; Physical layer; Proposals; Signal to noise ratio;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2011 SBMO/IEEE MTT-S International
Conference_Location :
Natal
Print_ISBN :
978-1-4577-1662-1
DOI :
10.1109/IMOC.2011.6169270
