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A Distributed Scheduling Algorithm for an Optical Switching Fabric

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5 Author(s)
Bianco, A. ; Dipt. di Elettron., Politec. di Torino, Torino ; Carta, E. ; Cuda, D. ; Finochietto, J.M.
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Designing switching architectures for network routers and switches needs to consider limits imposed by the electronic technology, like small bandwidth x distance factors, power density constraints, energy consumption and dissipation issues. Introducing optical technologies to implement switching functions can overcome several of the current design limits. We propose a cost-effective architecture implementing an optical switch without any need for optoelectronic conversion within the switching fabric. We further propose a distributed scheduling scheme, based on an extension of the Fasnet protocol, and we compare it to classical centralized scheduling algorithms, showing that a distributed scheduler can provide performance comparable to the ones offered by more complex centralized schedulers.

Published in:

Communications, 2008. ICC '08. IEEE International Conference on

Date of Conference:

19-23 May 2008