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Lightpath- and Light-Tree-Based Groupcast Routing and Wavelength Assignment in Mesh Optical Networks

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3 Author(s)
Rahman, T. ; Network Strategy & Product Archit., T-Mobile, Bellevue, WA, USA ; Ellinas, G. ; Ali, M.

With wide deployment of optical transport networks and the emergence of bandwidth-intensive applications, the idea of multicasts and groupcasts in optical networks stems from the ability to set up optical point-to-multipoint (multicast) and multipoint-to-multipoint (groupcast) sessions in wavelength-routed networks. As the technology for intelligent optical networks grows, optical groupcast applications (such as grid computing, distributed interactive simulations, multimedia-rich interactive services, virtual private network services, personal-customized content authoring services, and Ethernet LAN services) will become widely popular. In this paper we introduce the concept of groupcast routing and wavelength assignment (GC-RWA) and evaluate the performance of GC-RWA for light-forests corresponding to the groupcast sessions, when these light-forests are composed of lightpaths and light-trees.

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Optical Communications and Networking, IEEE/OSA Journal of  (Volume:1 ,  Issue: 2 )