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Novel Virtual Source Based Multicast Routing Algorithm in WDM Networks with Sparse Light Splitting

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5 Author(s)
Peng Lin ; Coll. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., Beijing ; Shuai Shi ; Jian Li ; Jie Zhang
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Wavelength-division multiplexed (WDM) networks using wavelength-routing are considered to be potential candidates for the next generation wide area backbone networks. A node in the network may have both wavelength conversion and splitting capabilities which is called as virtual source. It is assumed that virtual sources are limited in number and are distributed evenly in the network. One virtual source based algorithm has been proposed in previous work. But this scheme leads to high tree cost and the virtual source is easy to be exhausted. In this paper, we propose two improved virtual source based algorithms that constructs all-optical multicast trees. We directed detailed simulations. The results show that our mechanism builds light-trees with the least wavelength channel cost and with the smallest number of wavelengths under certain number of multicast sessions.

Published in:

Communication Technology, 2006. ICCT '06. International Conference on

Date of Conference:

27-30 Nov. 2006