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Proceedings Paper

Efficient dynamic multicast traffic grooming algorithm on WDM networks
Author(s): Cai Lu; Xiaoyan Nie; Sheng Wang; Lemin Li
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Paper Abstract

This paper investigates the dynamic multicast traffic grooming problem for optical mesh networks, which are configured with partial wavelength converters and partial light splitters. In the dynamic provisioning context, a typical multicast connection may require bandwidth less than that of a wavelength channel. Unlike the case of unicast, a multicast session has multiple destinations. We note a fact that the session has less blocking probability if it has fewer destinations. Then we develop a grooming scheme for multicast traffic on mesh WDM networks with sparse wavelength converters and light splitters configuration, named Multicast Tree Decompose (MTD) algorithm. The main idea of MTD is to try to decrease the destination number using the working multicast tree. Firstly, a simple layered auxiliary graph (layered-AG) is proposed to address the generalized wavelength continuity (GWC) constraint. What is more, a novel multicast tree algorithm is proposed to build more efficient multicast routing under the constraints of sparse multicast capable OXCs. Then we can decrease the destination number using "to partial destinations from source tree" (TPDST) and "to partial destination tree" (TPDT). From the simulation results, MTD algorithm has better performance compared with existing grooming schemes.

Paper Details

Date Published: 5 December 2005
PDF: 10 pages
Proc. SPIE 6022, Network Architectures, Management, and Applications III, 602230 (5 December 2005); doi: 10.1117/12.635812
Show Author Affiliations
Cai Lu, Univ. of Electronics Science and Technology of China (China)
Xiaoyan Nie, Univ. of Electronics Science and Technology of China (China)
Sheng Wang, Univ. of Electronics Science and Technology of China (China)
Lemin Li, Univ. of Electronics Science and Technology of China (China)


Published in SPIE Proceedings Vol. 6022:
Network Architectures, Management, and Applications III
Kwok-wai Cheung; Gee-Kung Chang; Guangcheng Li; Ken-Ichi Sato, Editor(s)

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