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Hybrid Optical Transport Network (HOTNET): An Optical Network with Hybrid Switching Technologies for Integrated Services

Hyoung-Il LEE, Seung-Woo SEO

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Summary :

In this paper, we propose a novel architecture for optical transport networks and its operation scheme guaranteeing the QoS requirements based on real-time traffic measurement. The key concept of the proposed architecture, which we call hybrid optical transport network (HOTNET), is to adopt both optical circuit switching and optical message switching in an optical network. To implement two different switching technologies in a single network, we modify the optical burst switching scheme and merge it into a TDM wavelength routed network. Then, we propose a control framework and an architecture of a switching node for this hybrid switching paradigm. We also discuss a real-time bandwidth provisioning scheme which utilizes the advantages of two respective switching schemes for traffic engineering. Finally, we evaluate the performance of the proposed scheme via computer simulation and the results show that it can guarantee the traffic QoS requirements while maintaining high channel utilization.

Publication
IEICE TRANSACTIONS on Communications Vol.E88-B No.10 pp.3874-3885
Publication Date
2005/10/01
Publicized
Online ISSN
DOI
10.1093/ietcom/e88-b.10.3874
Type of Manuscript
Special Section PAPER (Special Section on Next Generation Photonic Network Technologies)
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