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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editor: Richard A. Linke
  • Vol. 5, Iss. 12 — Dec. 1, 2006
  • pp: 985–1001

Multigranular integrated services optical network

Oliver Yu, Leping Yin, Huan Xu, and Ming Liao  »View Author Affiliations

Journal of Optical Networking, Vol. 5, Issue 12, pp. 985-1001 (2006)

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Feature Issue on Waveband Switching, Routing, and Grooming

Based on all-optical switches without requiring fiber delay lines and optical-electrical-optical interfaces, the multigranular optical switching (MGOS) network integrates three transport services via unified core control to efficiently support bursty and stream traffic of subwavelength to multiwavelength bandwidth. Adaptive robust optical burst switching (AR-OBS) aggregates subwavelength burst traffic into asynchronous light-rate bursts, transported via slotted-time light paths established by fast two-way reservation with robust blocking recovery control. Multiwavelength optical switching (MW-OS) decomposes multiwavelength stream traffic into a group of timing-related light-rate streams, transported via a light-path group to meet end-to-end delay-variation requirements. Optical circuit switching (OCS) simply converts wavelength stream traffic from an electrical-rate into a light-rate stream. The MGOS network employs decoupled routing, wavelength, and time-slot assignment (RWTA) and novel group routing and wavelength assignment (GRWA) to select slotted-time light paths and light-path groups, respectively. The selected resources are reserved by the unified multigranular robust fast optical reservation protocol (MG-RFORP). Simulation results show that elastic traffic is efficiently supported via AR-OBS in terms of loss rate and wavelength utilization, while connection-oriented wavelength traffic is efficiently supported via wavelength-routed OCS in terms of connection blocking and wavelength utilization. The GRWA-tuning result for MW-OS is also shown.

© 2006 Optical Society of America

OCIS Codes
(060.4250) Fiber optics and optical communications : Networks

ToC Category:
Waveband Switching, Routing, and Grooming

Original Manuscript: May 17, 2006
Revised Manuscript: August 26, 2006
Manuscript Accepted: September 12, 2006
Published: November 15, 2006

Virtual Issues
Waveband Switching, Routing, and Grooming (2006) Journal of Optical Networking

Oliver Yu, Leping Yin, Huan Xu, and Ming Liao, "Multigranular integrated services optical network," J. Opt. Netw. 5, 985-1001 (2006)

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