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Operational Cost Reduction in WDM Networks using Lighttours

Wavelength division multiplexing (WDM) networks have been adopted as a near-future solution for the broadband Internet. In previous work we proposed a new architecture, named enhanced grooming (G+), that extends the capabilities of traditional optical routes (lightpaths). In this paper, we compare the operational expenditures incurred by routing a set of demands using lightpaths with that of lighttours. The comparison is done by solving an integer linear programming (ILP) problem based on a path formulation. Results show that, under the assumption of single-hop routing, almost 15% of the operational cost can be reduced with our architecture. In multi-hop routing the operation cost is reduced in 7.1% and at the same time the ratio of operational cost to number of optical-electro-optical conversions is reduced for our architecture. This means that ISPs could provide the same satisfaction in terms of delay to the end-user with a lower investment in the network architecture

© 9th International Conference on Transparent Optical Networks : 2007 : ICTON ’07, 2007, vol. 1, p. 71-74

IEEE

Author: Marzo i Lázaro, Josep Lluís
Caro Pérez, Luis Fernando
Solano Donado, Fernando
Oliveira, Jaudelice C.de
Fabregat Gesa, Ramon
Date: 2007
Abstract: Wavelength division multiplexing (WDM) networks have been adopted as a near-future solution for the broadband Internet. In previous work we proposed a new architecture, named enhanced grooming (G+), that extends the capabilities of traditional optical routes (lightpaths). In this paper, we compare the operational expenditures incurred by routing a set of demands using lightpaths with that of lighttours. The comparison is done by solving an integer linear programming (ILP) problem based on a path formulation. Results show that, under the assumption of single-hop routing, almost 15% of the operational cost can be reduced with our architecture. In multi-hop routing the operation cost is reduced in 7.1% and at the same time the ratio of operational cost to number of optical-electro-optical conversions is reduced for our architecture. This means that ISPs could provide the same satisfaction in terms of delay to the end-user with a lower investment in the network architecture
Format: application/pdf
Citation: Marzo, J.L., Caro, L.F., Solano, F., de Oliveira, J.C., i Fabregat, R. (2007). Operational Cost Reduction in WDM Networks using Lighttours. 9th International Conference on Transparent Optical Networks : 2007 : ICTON ’07. 1, 71 - 74. Recuperat 10 maig 2010, a http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4296033
ISBN: 1-4244-1249-8
Document access: http://hdl.handle.net/10256/2233
Language: eng
Publisher: IEEE
Collection: Reproducció digital del document publicat a: http://dx.doi.org/10.1109/ICTON.2007.4296033
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Is part of: © 9th International Conference on Transparent Optical Networks : 2007 : ICTON ’07, 2007, vol. 1, p. 71-74
Rights: Tots els drets reservats
Subject: Comunicacions òptiques
Multiplexatge per divisió de freqüència
Optical communications
Wavelength division multiplexing
Title: Operational Cost Reduction in WDM Networks using Lighttours
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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