Parallel and multi-wavelength downloading in optical grid networks

Parallel and multi-wavelength downloading in optical grid networks In optical grid networks, data files for job execution are replicated at multiple sites in order to distribute loads and achieve high performance computing. Those replicas are downloaded in parallel in order to reduce downloading time. Furthermore, each replica is downloaded with multiple wavelengths. Although parallel and multi-wavelength downloading reduce downloading time, they raise blocking probability of file downloading. This is because they use a lot of wavelength resources and thus often generate bottleneck links. To resolve this problem, this paper proposes a parallel and multi-wavelength downloading scheme for optical grid networks. The proposed scheme provides replica selection, route selection, and wavelength selection for parallel and multi-wavelength downloading. In the proposed scheme, clients dynamically select combinations of a replica, a route, and a wavelength in such a way that they suppress the generation of bottleneck links. Through simulation experiments, we show that the proposed scheme efficiently improves blocking probability of parallel and multi-wavelength downloading. Photonic Network Communications Springer Journals

Parallel and multi-wavelength downloading in optical grid networks

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Springer US
Copyright © 2011 by Springer Science+Business Media, LLC
Computer Science; Characterization and Evaluation of Materials; Electrical Engineering; Computer Communication Networks
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