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Distributed Virtual Topology Adaptation Method to Support IP Traffic in WDM Mesh Networks  

Kim, Eal-Lae (고려대학교 전자컴퓨터공학과 차세대 네트워크 연구실)
Lee, Sung-Kuen (고려대학교 전자컴퓨터공학과 차세대 네트워크 연구실)
Lee, Yong-Won (고려대학교 전자컴퓨터공학과 차세대 네트워크 연구실)
Chang, Sun-Hyok (한국전자통신연구원 광대역통합망연구단)
Lee, Myung-Moon (수원과학대학 정보통신과)
Park, Jin-Woo (고려대학교 전자컴퓨터공학과 차세대 네트워크 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.32, no.1B, 2007 , pp. 1-10 More about this Journal
Abstract
We propose a new approach to accommodate bidirectional asymmetric traffic demands as well as unexpected dynamic internet traffic variation in the WDM mesh network by using optical networking technologies. In the proposed scheme, an intermediate node determines the optical path based on the switching statistics of IP router of the node which characterizes the Internet traffic variation, which in effect provides a dynamic and distributed traffic control over the network. It is expected to reduce the efficiency deterioration of RWA(Routing and Wavelength Assignment) due to the real-time variation of Internet traffic so that expandability and flexibility of the network can be enhanced. In this paper, we describe a methodology for traffic behavior analysis at a node, and the decision policy of the establishment/release of optical path. In addition, we evaluate the performance of the proposed scheme through the computer simulations.
Keywords
WDM Mesh Networks; Dynamic Traffic; Optical Networks; Virtual Topology Adaptation; Decentralized Algorithm;
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