Physical layer impairments accumulate as light propagates through a lightpath in the transparent optical networks. Therefore, it is possible to provision a lightpath, while its quality of transmission (QoT) does not meet the required threshold. Considering
the physical layer impairments in the network planning phase gives rise to a set of offline Impairments Aware Routing and
Wavelength Assignment (IA-RWA) algorithms. There are very few offline IA-RWA algorithms that consider dedicated path protection demands. In this work we propose a novel offline IA-RWA algorithm, called Rahyab and perform a comparative performance evaluation study, which considers two enhanced algorithms from the literature. Simulation results indicates that demand pre-processing,
diverse routing, and adaptive wavelength assignment are the main reasons of lower blocking rate of Rahyab algorithm compared
to the selected algorithms.
CitationAzodolmolky, S. [et al.]. A novel offline physical layer impairments aware RWA algorithm with dedicated path protection consideration. "Journal of lightwave technology", 15 Octubre 2010, vol. 28, núm. 20, p. 3029-3040.
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder. If you wish to make any use of the work not provided for in the law, please contact: firstname.lastname@example.org