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GLOBECOM
2008
IEEE

All-Optical Unicast/Multicast Routing in WDM Networks

9 years 4 months ago
All-Optical Unicast/Multicast Routing in WDM Networks
Abstract—Optical Transport Networks (OTN) must be prepared in terms of better resource utilization, for accommodating unicast and multicast traffic together. Light-trees have been proposed for supporting multicast connections in OTN. Nevertheless when Traffic Grooming is applied in light-trees, resources can be underutilized as traffic can be routed to undesirable destinations in order to avoid Optical-Electrical-Optical (OEO) conversions. In this paper, a novel architecture named S/G Lighttree for supporting unicast/multicast connections is proposed. The architecture allows traffic dropping and aggregation in different wavelengths without performing OEO conversions. A heuristic that routes traffic demands using less wavelengths by taking advantage of the proposed architecture is designed as well. Simulation results show that the architecture can minimize the number of used wavelengths and OEO conversions when compared to light-trees.
Javier E. Sierra, Luis F. Caro, Fernando Solano, J
Added 29 May 2010
Updated 29 May 2010
Type Conference
Year 2008
Where GLOBECOM
Authors Javier E. Sierra, Luis F. Caro, Fernando Solano, José-Luis Marzo, Ramón Fabregat, Yezid Donoso
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