Optical signal-to-noise ratio restoration algorithm applied to optical network resilience to node failures

Author

De Freitas, Rodrigo C. ; Martins-Filho, Joaquim F. ; Chaves, Daniel A R ; Silva, Rodrigo C L ; Bastos-Filho, Carmelo J A ; Pereira, Helder A. ; Leitao, Edluce Dos S

Author_Institution

Dept. of Electron. & Syst., Fed. Univ. of Pernambuco (UFPE), Recife, Brazil

fYear

2011

fDate

24-26 Oct. 2011

Firstpage

1

Lastpage

6

Abstract

In this paper we propose a novel algorithm to restore calls upon node failure in all-optical networks. Our proposal aims to restore the maximum of lightpaths disrupted by each node 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

optical fibre networks; telecommunication network reliability; telecommunication network routing; all optical network; node failures; optical network resilience; optical signal-to-noise ratio restoration algorithm; path restoration; physical layer impairment; All-optical networks; Optical noise; Physical layer; Proposals; Signal to noise ratio; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (LATINCOM), 2011 IEEE Latin-American Conference on

Conference_Location

Belem do Para

Print_ISBN

978-1-4673-0277-7

Type

conf

DOI

10.1109/LatinCOM.2011.6107408

Filename

6107408