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Management is a critical issue in optical networks. Highly impacting in management, routing in optical networks, is often decoupled into both the path selection and the wavelength assignment problems. In the former, shortest path based approaches are often applied to compute paths. Although such approaches offer advantages in terms of network loading, they are restricted by the fact, that routes are...
During the last few years, the research community has shown an increasing interest in the subject of inter-domain routing in optical networks, so new approaches like the optical extension of BGP, namely OBGP, have arisen. However, it is widely accepted now that a multi-domain routing model mostly centered on the exchange of reachability information - like the one we have today or the one provided...
This paper presents a RWA strategy based on the stochastic estimation of the effective number of available wavelengths (ENAW) along interdomain paths. We propose an approximate model to roughly estimate the ENAW on the paths across multiple domains, and then refine this estimation by means of observations and an adaptive prediction-correction Kalman filtering process. Unlike traditional Kalman filters,...
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