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Operational cost reduction in WDM networks using lighttours
Conference proceeding   Open access

Operational cost reduction in WDM networks using lighttours

Jose L. Marzo, Luis F. Caro, Fernando Solano, Jaudelice C. de Oliveira and Ramon Fabregat
ICTON 2007: PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS, VOL 1, v 1, pp 71-74
01 Jan 2007
url
http://hdl.handle.net/10256/2233View
SubmittedCC0 V1.0 Open

Abstract

Engineering Engineering, Electrical & Electronic Optics Physical Sciences Science & Technology Technology Telecommunications
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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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Engineering, Electrical & Electronic
Optics
Telecommunications
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