Analytical Model for Burstification Latency in Optical Burst Switched Networks

Yuhua CHEN  Pramode K. VERMA  

IEICE TRANSACTIONS on Communications   Vol.E90-B   No.9   pp.2588-2591
Publication Date: 2007/09/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.9.2588
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Switching for Communications
optical switching,  optical burst switching,  wavelength division multiplexing (WDM),  latency,  

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In Optical Burst Switched (OBS) networks, packets are assembled into bursts at ingress edge routers and disassembled at egress edge routers. This letter presents an analytical model to quantify the burstification latency in the OBS networks. To the authors' best knowledge, this letter is the first one to address the latency issue in OBS in a comprehensive manner analytically. The results allow us to quantitatively understand how OBS network parameters such as maximum burst length and maximum timeout affect the packet latency in the OBS networks. We show that the burstification latency in the OBS network is bounded and can be tuned by setting the system parameters under latency constraints.