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Réseaux de Transport WDM: Planification de Réseaux Translucides et Economie d'Energie

Abstract : As Operators strive today to optimize their networks, considerations of cost, availability, eco-sustainability, and quality of service are beginning to converge. Solutions that reduce capital and operational expenditures not only save money, but also tend to reduce the environmental impact. In "opaque" networks, optical signals undergo expensive electrical regeneration systematically at each node. In "transparent" networks, signal quality deteriorates due to the accumulation of physical impairments from source to destination. "Translucent" networks stand halfway between opaque and transparent networks. In such networks, sparsely chosen nodes are equipped with electrical regenerators while the others are transparent to the optical signal. In this thesis, we have proposed an optimization technique for translucent network design, and developed, for this purpose, an algorithm performing routing and wavelength assignement as well as regenerator placement consisting in a cross-optimization between CapEx and OpEx costs. The second part of this thesis focuses on energy-aware WDM network design applied to scheduled traffic. Client cards interfacing the IP router and the optical cross-connect represent the key elements which deployment can be exploited to prevent power waste. We have proposed an approach to optimize the number and usage of these components by addressing the time-space correlation between traffic connections.
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Contributor : Mayssa Youssef Connect in order to contact the contributor
Submitted on : Monday, March 19, 2012 - 4:50:46 PM
Last modification on : Tuesday, September 21, 2021 - 2:06:13 PM
Long-term archiving on: : Wednesday, December 14, 2016 - 5:26:51 PM


  • HAL Id : pastel-00680565, version 1


Mayssa Youssef. Réseaux de Transport WDM: Planification de Réseaux Translucides et Economie d'Energie. Networking and Internet Architecture [cs.NI]. Télécom ParisTech, 2011. English. ⟨pastel-00680565⟩



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