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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editor: Keren Bergman
  • Vol. 7, Iss. 2 — Feb. 1, 2008
  • pp: 119–131

Fuzzy logic packet scheduling approach for QoS provision of delay-constrained traffic in synchronous optical packet switched networks

R. Razavi, E. Hugues-Salas, T. Quinlan, and S. D. Walker  »View Author Affiliations


Journal of Optical Networking, Vol. 7, Issue 2, pp. 119-131 (2008)
http://dx.doi.org/10.1364/JON.7.000119


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Abstract

We describe a fuzzy-logic-based scheduling algorithm for synchronous optical packet switches that provides quality of service for delay-constrained traffic. The proposed method considers both packet importance as well as delay constraints. One of the advantages of a fuzzy controller is the fact that, regardless of the design complexity, it can be implemented as a simple look-up table. This makes it ideal for high-speed optical switches. We have used two fuzzy controllers: one to select a packet to be forwarded to an output port and another to decide which packet(s) should be buffered or dropped. In a simulation example, video traffic with three priority classes is considered. The results show up to 3dBs of improvement in the quality of the received video, resulting from the packet loss differentiation achieved by employing the proposed fuzzy packet scheduling approach.

© 2008 Optical Society of America

OCIS Codes
(060.4259) Fiber optics and optical communications : Networks, packet-switched
(060.6719) Fiber optics and optical communications : Switching, packet

ToC Category:
RESEARCH PAPERS

History
Original Manuscript: September 13, 2007
Revised Manuscript: November 22, 2007
Manuscript Accepted: November 27, 2007
Published: January 10, 2008

Citation
R. Razavi, E. Hugues-Salas, T. Quinlan, and S. D. Walker, "Fuzzy logic packet scheduling approach for QoS provision of delay-constrained traffic in synchronous optical packet switched networks," J. Opt. Netw. 7, 119-131 (2008)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jon-7-2-119


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References

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