This paper presents the PI-OBS algorithm, a parallel-iterative scheduler for OBS nodes. Conventional schemes are greedy in the sense that they process headers one by one. In PI-OBS, all the headers received during a given time window are jointly processed to optimize the delay and output wavelength allocation, applying void filling techniques, and allowing traffic differentiation. Results show a similar or better performance than the LAUC-VF algorithm, commonly used as a performance bound for OBS schedulers. The PI-OBS scheduler has been designed to allow parallel electronic implementation similar to the ones in VOQ schedulers, with a deterministic response time.

PI-OBS: a parallel iterative optical burst scheduler for OBS networks

CERRONI, WALTER;
2009

Abstract

This paper presents the PI-OBS algorithm, a parallel-iterative scheduler for OBS nodes. Conventional schemes are greedy in the sense that they process headers one by one. In PI-OBS, all the headers received during a given time window are jointly processed to optimize the delay and output wavelength allocation, applying void filling techniques, and allowing traffic differentiation. Results show a similar or better performance than the LAUC-VF algorithm, commonly used as a performance bound for OBS schedulers. The PI-OBS scheduler has been designed to allow parallel electronic implementation similar to the ones in VOQ schedulers, with a deterministic response time.
2009
Proceedings of 2009 International Conference on High Performance Switching and Routing (HPSR 2009)
P. Pavon-Marino; J. Veiga-Gontan; A. Ortuno-Manzanera; W. Cerroni; J. Garcia-Haro
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/85875
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