A new size-based burst assembly scheme for OBS switches

Authors:
SeoungYoung Lee;InYong Hwang;HongShik Park
Affiliations:
Information and Communications University, Daejeon, Korea;Information and Communications University, Daejeon, Korea;Information and Communications University, Daejeon, Korea
Venue:
ICCSA'06 Proceedings of the 2006 international conference on Computational Science and Its Applications - Volume Part II
Year:
2006

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Abstract

We propose a new size-based burst classification algorithm which assembles arriving packets with different burst size according to classes in OBS ingress switches. In JET-based OBS scheme, because the high priority class bursts are likely to occupy channels in advance, the low priority class bursts should find void intervals between high-class bursts to avoid burst blocking. The research results show that there was close relation between blocking rate of low-class bursts and size of its bursts. By limiting the maximum length of low-class bursts, loss, throughput and assembly delay performances are improved when proposed scheme is compared to conventional scheme.