22 September 2000 Multicast routing for wavelength-routed WDM networks with dynamic membership
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Future broadband networks must support integrated services and offer flexible bandwidth usage. In our previous work, we explore the optical link control layer on the top of optical layer that enables the possibility of bandwidth on-demand service directly over wavelength division multiplexed (WDM) networks. Today, more and more applications and services such as video-conferencing software and Virtual LAN service require multicast support over the underlying networks. Currently, it is difficult to provide wavelength multicast over the optical switches without optical/electronic conversions although the conversion takes extra cost. In this paper, based on the proposed wavelength router architecture (equipped with ATM switches to offer O/E and E/O conversions when necessary), a dynamic multicast routing algorithm is proposed to furnish multicast services over WDM networks. The goal is to joint a new group member into the multicast tree so that the cost, including the link cost and the optical/electronic conversion cost, is kept as less as possible. The effectiveness of the proposed wavelength router architecture as well as the dynamic multicast algorithm is evaluated by simulation.
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Nen-Fu Huang, Nen-Fu Huang, Te-Lung Liu, Te-Lung Liu, Yao-Tzung Wang, Yao-Tzung Wang, Bo Li, Bo Li, "Multicast routing for wavelength-routed WDM networks with dynamic membership", Proc. SPIE 4233, OptiComm 2000: Optical Networking and Communications, (22 September 2000); doi: 10.1117/12.401817; https://doi.org/10.1117/12.401817


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