Reducing the lightpath establishing time of FWM-aware dynamic RWA for wavelength-routed optical networks |
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| Authors: | Adelys Marsden Akihiro Maruta Ken-ichi Kitayama |
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| Affiliation: | (1) Department of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, Suita-shi, Osaka 565-0871, Japan |
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| Abstract: | A dynamic routing and wavelength allocation technique with an interplay between physical and network layer parameters encompassing
Four-wave mixing (FWM) awareness and teletraffic performance of wavelength-routed optical networks has previously been proposed
for a distributed approach. In this article, we present a fast computational algorithm for our routing and wavelength assignment
(RWA) encompassing FWM-induced crosstalk. The objective is to minimize the time of establishing a dynamic lightpath. For this
purpose, a precomputed matrix of FWM crosstalk products is used in an adapted version of the FWM-aware dynamic RWA algorithm.
The approach is validated through simulations showing improvement up to 30–50% on the provisioning time of lightpaths for
different network topologies compared to an online full computational scheme.
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| Keywords: | Routing and wavelength assignment Impairment-aware dynamic RWA Four-wave mixing Lightpath establishing time Performance evaluation |
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