Routing techniques in dynamic optical networks impaired by pmd

Abstract

This paper presents a proposal of a Routing and Wavelength Assignment algorithm that use a routing strategy taking into account monitored physical layer attributes as input parameters for the path computation. The proposed routing technique aims at to achieve optical quality of service (OQoS) in optical network impaired by Polarization Mode Dispersion (PMD). Numerical results show that the network performance can be improved when alternative routes are used. Furthermore, sim ulations in different networks scenarios suggest that the use the routes with the lower PMD penalty (shortest path in Dijkstra's algorithm) may be very bad and suggest that a more sophisticated routing algorithm should be employ.

Probabilistic Approach for Blocking Probability in Optical Networks

“…A routing strategy taking into account monitored physical layer attributes as input parameters for the path computation proposed by Alexsandra F. Gomes in [7] known to be Routing and Wavelength Assignment algorithm. The proposed routing technique aims at to achieve optical quality of service (QoS) in optical network impaired by Polarization Mode Dispersion (PMD) which results in improved network performance when alternative routes are used.…”

“…In [7] presented by Alexsandra F. Gomes, Carlos E. M. Fernandes, Victor A. P. Oliveira e Iguatemi E. Fonseca presents WDM multiplexing for fiber-optic communications that uses the concept different wavelengths of laser light for multiplexing number of optical carrier signals onto a single optical fiber. Bidirectional communications over a single strand of fiber is possible using this technique.…”