A Novel Restoration Algorithm Based on Optical Signal-to-Noise Ratio for Transparent Optical Networks

Abstract

In this paper, we propose a novel algorithm to restore calls upon a single failure in transparent optical networks. After a failure, the proposed algorithm performs a path restoration searching for the route which presents the higher optical signal-to-noise ratio. We compared our proposal to three other well known approaches in the literature. We achieved lower failure rates in the restoration process for three different scenarios. Keywords— Survivable Optical Networks, Transparent Optical Networks, Path Restoration, Physical Impairments.