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WDM optical interconnect architectures under two connection models

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2 Author(s)
Yuanyuan Yang ; Dept. of Electr. & Comput. Eng., State Univ. of New York, Stony Brook, NY, USA ; Jianchao Wang

Optical communication, in particular, the wavelength-division multiplexing (WDM) technique, has become a promising networking choice to meet ever-increasing demands on bandwidth. We consider cost-effective architecture designs of WDM optical interconnects for current and future generation parallel and distributed computing and communication systems. We first categorize WDM optical interconnects into two different connection models based on their intended applications: the wavelength-based model and the fiber-link-based model. Most existing WDM optical interconnect architectures belong to the first category. However, in this paper we show that for applications that use the fiber-link-based model, network cost can be significantly reduced. We then present such a minimum cost architecture design for WDM optical interconnects under the fiber-link-based model. We also generalize the idea used in this design to WDM optical interconnects under the wavelength-based model, and obtain a new architecture design which can trade-off the cost of wavelength converters with the number of crosspoints in this type of WDM optical interconnect.

Published in:

High Performance Interconnects, 2002. Proceedings. 10th Symposium on

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