Mr. Zhiling Dong Profile

Zhiling Dong

at Shanghai Univ

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Proceedings Article | 19 November 2007 Paper

Dynamic multicast routing scheme in WDM optical network

Yonghua Zhu, Zhiling Dong, Hong Yao, Jianyong Yang, Yibin Liu

Proceedings Volume 6783, 67834G (2007) https://doi.org/10.1117/12.745254

KEYWORDS: Wavelength division multiplexing, Optical networks, Switches, Clocks, Data transmission, Internet, Computer simulations, Optical switching, Optical fibers, Multiplexing

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During the information era, the Internet and the service of World Wide Web develop rapidly. Therefore, the wider and wider bandwidth is required with the lower and lower cost. The demand of operation turns out to be diversified. Data, images, videos and other special transmission demands share the challenge and opportunity with the service providers. Simultaneously, the electrical equipment has approached their limit. So the optical communication based on the wavelength division multiplexing (WDM) and the optical cross-connects (OXCs) shows great potentials and brilliant future to build an optical network based on the unique technical advantage and multi-wavelength characteristic. In this paper, we propose a multi-layered graph model with inter-path between layers to solve the problem of multicast routing wavelength assignment (RWA) contemporarily by employing an efficient graph theoretic formulation. And at the same time, an efficient dynamic multicast algorithm named Distributed Message Copying Multicast (DMCM) mechanism is also proposed. The multicast tree with minimum hops can be constructed dynamically according to this proposed scheme.

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