Wavelength requirements and routing for multicast connections in lightpath and light-tree models of WDM networks with limited drops

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Original languageEnglish
Pages (from-to)363-367
Journal / PublicationIEE Proceedings: Communications
Issue number6
Publication statusPublished - Dec 2001


The wavelength requirements of a multicast connection in WDM networks are studied. The network model is an all-optical network, in which a message can be dropped (or split) only at a limited number of destination nodes along a lightpath or a light-tree, due to the power loss of dropping optical signals. The upper and lower bounds of wavelength requirements for establishing a multicast connection in various topologies of networks are presented. The optimal routing and wavelength assignment algorithms for multicast connections to achieve the minimal number of wavelengths are also described.