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In general, the multicast routing and wavelength assignment (MC-RWA) can be subdivided as routing and wavelength assignment issues in WDM mesh networks. Previous studies on WDM multicast have mainly focused on the WDM multicast routing. The multicast wavelength assignment problem is studied in this paper. A unicast routing path can be established by a lightpath in an all-optical network. However, in multicasting case, a multicast routing tree can be established by a single light-tree or severaldoi:10.2991/jcis.2006.312 dblp:conf/jcis/Lee06c fatcat:rj7uqfsrkbem3naupwfchel2va