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.
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Title
Operational cost reduction in WDM networks using lighttours
Creators
Jose L. Marzo - University of Girona
Luis F. Caro - University of Girona
Fernando Solano - University of Girona
Jaudelice C. de Oliveira - Drexel University
Ramon Fabregat - University of Girona
Contributors
M Marciniak (Editor)
Publication Details
ICTON 2007: PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS, VOL 1, v 1, pp 71-74
Publisher
IEEE
Number of pages
2
Grant note
293 / COST; European Cooperation in Science and Technology (COST)
Departmentof Universities, Research and Information Society (DURSI) of the Government of Catalonia
2005-SGR-00296; 2006-FI-00112; 2006-FIR-00109 / European Social Funds; European Social Fund (ESF)
TIC2003-05567 / Spanish Science and Technology Ministry; Spanish Government
Resource Type
Conference proceeding
Language
English
Academic Unit
Electrical and Computer Engineering
Web of Science ID
WOS:000250511100020
Scopus ID
2-s2.0-48349115058
Other Identifier
991019169564004721
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