Optical Resources Provisioning: Multipoint-to-Point Lightpaths Mapping in All-Optical Networks

Nizar Bouabdallah 1 Guy Pujolle 1
1 Phare
LIP6 - Laboratoire d'Informatique de Paris 6
Abstract : In wavelength-division multiplexing (WDM) optical networks, the bandwidth request of a traffic stream can be much lower than the capacity of a lightpath. Efficiently grooming low-speed connections onto high-capacity lightpaths will improve the network throughput and reduce the network cost. In this paper, we propose and evaluate a new concept of traffic aggregation in WDM mesh networks that aims to eliminate both the bandwidth under-utilization and scalability concerns that are typical in all-optical wavelength routed networks. This approach relies on the multipoint-to-point lightpath concept. In order to assess the efficiency of our proposal, all underlying network costs are compared. To achieve this aim, we devise a new provisioning algorithm to map the multipoint-to-point lightpaths in the network. Our results show that the proposed aggregation technique can significantly improve the network throughput while reducing its cost.
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Article dans une revue
International Journal of Network Management, Wiley, 2005, 15 (3), pp.203-212. 〈10.1002/nem.566〉
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Soumis le : jeudi 25 juin 2015 - 11:06:22
Dernière modification le : jeudi 21 mars 2019 - 13:11:14

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Nizar Bouabdallah, Guy Pujolle. Optical Resources Provisioning: Multipoint-to-Point Lightpaths Mapping in All-Optical Networks. International Journal of Network Management, Wiley, 2005, 15 (3), pp.203-212. 〈10.1002/nem.566〉. 〈hal-01168046〉

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