PI-OBS: a Parallel Iterative Optical Burst Scheduler for OBS networks
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Pavón Mariño, Pablo; Veiga Gontan, Juan; Ortuño Manzanera, Alejandro; Cerroni, Walter; García Haro, JuanResearch Group
Grupo de Ingeniería Telemática (GIT)Knowledge Area
Ingeniería TelemáticaSponsors
This research has been partially supported by the MEC projects TEC2007-67966-01/TCM CON-PARTE-1, and TEC2008-02552-E, and it is also developed in the framework of "Programa de Ayudas a Grupos de Excelencia de la R. de Murcia, F. Séneca".Publication date
2009-11Publisher
Institute Electrical and Electronics Engineers. (IEEE)Bibliographic Citation
PAVÓN MARIÑO, P., VEIGA GONTAN, J., ORTUIÑO MANZANERA, A., CERRONI, W., GARCÍA HARO, J. PI-OBS: a Parallel Iterative Optical Burst Scheduler for OBS networks. En: International Conference on High Performance Switching and Routing (2009: Paris). International Conference on High Performance Switching and Routing, 2009. HPSR 2009. Paris: Institute Electrical and Electronics Engineers. 2009. 1-8 p. ISBN 978-1-4244-5174-6Peer review
SíKeywords
Algoritmo PI-OBSMétodo iterativo
Conmutación óptica
Redes de fibra óptica
Tráfico de telecomunicaciones
Optimizar el retraso
Asignación de longitud de onda de salida
Técnicas de relleno de vacíos
Programador VOQ
PI-OBS algorithm
Iterative method
Iterative methods
Optical burst switching
Optical fibre network
Telecommunication traffic
Optimize the delay
Output wavelength allocation
Void filling technique
VOQ scheduler
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.
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