NDLI: An Enhanced Train Assembly Policy for Lossless OBS with CAROBS

Content Provider	IEEE Xplore Digital Library
Author	Coutelen, T. Jaumard, B. Hébuterne, G.
Copyright Year	2010
Abstract	The traffic evolution is notoriously marked by an increasing dynamism that promotes the design of a dynamic optical layer. Despite the contention issue, Optical Burst Switchingis planned to be deployed in the near future because it offers the required reactivity.Recourse to electrical processing to solve burst contentions has been disregarded because it can dramatically impact the end-to-end delay and the electrical memory requirements. Recently, the CAROBS transmission scheme has been proposed as an adapted response to the drawbacks of translucent architectures: By exploiting both edge and core traffic grooming, CAROBS significantly reduces the contention rate and the duration of the aggregation process. With the additional use of wavelength conversion, loss-less transfer is achieved with similar end-to-end delay and memory requirements as in all-optical OBS networks.The objective in this paper is to attain similar delay and memory performances for loss-less transfers without the support of wavelength converters. We propose a new train assembly process, called CTA, which reduces the time spent in electrical buffers by decreasing the offset times of the trains. The resulting reduction of the buffer occupancy allows the achievement of similar performances as with wavelength conversion, even in congested states, without investing in any specific equipment.
Starting Page	61
Ending Page	68
File Size	234749
Page Count	8
File Format	PDF
ISBN	9781424462483
e-ISBN	9781424462490
DOI	10.1109/CNSR.2010.21
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-11
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Assembly Optical wavelength conversion Optical buffering Telecommunication traffic Stimulated emission Optical fiber networks Propagation delay Optical losses Optical burst switching Circuits
Content Type	Text
Resource Type	Article

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