On wavelength translation in all-optical networks
INFOCOM '95 Proceedings of the Fourteenth Annual Joint Conference of the IEEE Computer and Communication Societies (Vol. 2)-Volume - Volume 2
Light trees: optical multicasting for improved performance in wavelength routed networks
IEEE Communications Magazine
Multicast routing with end-to-end delay and delay variation constraints
IEEE Journal on Selected Areas in Communications
Efficient routing and wavelength assignment for multicast in WDM networks
IEEE Journal on Selected Areas in Communications
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As the high-bandwidth pipes based on WDM (wavelength division multiplexing) networks are offered, many applications such as interactive real-time multicasting in large-scale science communities are emerging. In this paper, we study the problems of optical multicast routing and wavelength assignment under sparse-splitting optical network for interactive real-time media delivery. Unfortunately constrained multicast routing and optimal wavelength assignment problems lead to NP-hard. Therefore, we first propose a virtual node based multicast routing algorithm that satisfies requirements of interactive real-time multicasting as well as optical network constraints. Then, the wavelength assignment algorithm on the constructed multicast tree is presented. The experiment results show that the proposed algorithms have good performance in terms of 1) the maximum interdestination delay variation, 2) the signal quality, and 3) the number of wavelength conversions.