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Optica Publishing Group
  • Optical Fiber Communications Conference
  • OSA Trends in Optics and Photonics (Optica Publishing Group, 2002),
  • paper ThGG118

QoS Burstification for Optical Burst Switched WDM Networks

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Abstract

The ever-growing demand for Internet bandwidth and recent advances in optical Wavelength Division Multiplexing (WDM) technologies1 brings about fundamental changes in the design and implementation of the next generation optical Internet. Current applications of WDM mostly follow the circuit-switching paradigm by making relatively static utilization of individual WDM channels. As opposed to circuit switching, optical packet switching technologies2 enables fine-grained on-demand channel allocation and have been envisioned as an ultimate networking solution of IP over WDM. Nevertheless, optical packet switching currently faces some technological limitations, such as the lack of optical buffer, contention resolution, and switching overhead. Optical burst switching,3 as a result, has been emerged as a prominent coarse-grained optical packet switching solution attempting to combine the best of both optical circuit and packet switching while circumventing their limitations. Such technology, on the other hand, raises significant Quality-of-Service (QoS) challenges that need to be examined from both technical and economic perspectives.

© 2002 Optical Society of America

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