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Architecture and Characteristics of Multi-Ring based Optical Network with Single-Hop between Edge Nodes  

Lee, Sang-Hwa (HUFS, School of Electronics & Inform. Eng.)
Lee, Heesang (Sungkyunhwan Univ., System Management Eng.)
Han, Chimoon (HUFS, School of Electronics & Inform. Eng.)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.41, no.6, 2004 , pp. 69-78 More about this Journal
Abstract
This paper proposes architecture and characteristics of a multi-ring based optical network with single-hop between edge nodes using the concept of circuit switching and multi-wavelength label switching to solve delay problem caused by applying crossconnectors as transit nodes in the wavelength division multiplexing(WDM) network. We suggest multi-ring based architecture composed single and multiple wavelength-bands with multi-wavelength labels, and analyze characteristics of two models. To avoid the packet collision in output ports of edge nodes due to output contention, the static and dynamic allocation scheme, which packets are allocated in time slots, is provided. Based on our analysis, it shows that delay only occur in not core nodes but edge nodes in the proposed architecture. In addition, we evaluate the probabilities of delay, packet loss, and call blocking in the proposed optical packet network.
Keywords
Optical Network; Multi-wavelength Label Switching; Single-Hop; Multi-Ring;
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