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Applied Optics

Applied Optics


  • Vol. 39, Iss. 26 — Sep. 10, 2000
  • pp: 4770–4782

Integrated model for performance analysis of all-optical multihop packet switches

Han-You Jeong and Seung-Woo Seo  »View Author Affiliations

Applied Optics, Vol. 39, Issue 26, pp. 4770-4782 (2000)

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The overall performance of an all-optical packet switching system is usually determined by two criteria, i.e., switching latency and packet loss rate. In some real-time applications, however, in which packets arriving later than a timeout period are discarded as loss, the packet loss rate becomes the most dominant criterion for system performance. Here we focus on evaluating the performance of all-optical packet switches in terms of the packet loss rate, which normally arises from the insufficient hardware or the degradation of an optical signal. Considering both aspects, we propose what we believe is a new analysis model for the packet loss rate that reflects the complicated interactions between physical impairments and system-level parameters. On the basis of the estimation model for signal quality degradation in a multihop path we construct an equivalent analysis model of a switching network for evaluating an average bit error rate. With the model constructed we then propose an integrated model for estimating the packet loss rate in three architectural examples of multihop packet switches, each of which is based on a different switching concept. We also derive the bounds on the packet loss rate induced by bit errors. Finally, it is verified through simulation studies that our analysis model accurately predicts system performance.

© 2000 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.4250) Fiber optics and optical communications : Networks
(200.4560) Optics in computing : Optical data processing
(200.4740) Optics in computing : Optical processing

Original Manuscript: January 3, 2000
Revised Manuscript: June 20, 2000
Published: September 10, 2000

Han-You Jeong and Seung-Woo Seo, "Integrated model for performance analysis of all-optical multihop packet switches," Appl. Opt. 39, 4770-4782 (2000)

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