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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 2, Iss. 5 — May. 1, 2010
  • pp: 230–240

FLAG: A Fuzzy Local FairRate Generator for Resilient Packet Ring

Wen-Shiang Tang, Chung-Ju Chang, Po-Long Tien, and Wei-Chien Wang  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 2, Issue 5, pp. 230-240 (2010)
http://dx.doi.org/10.1364/JOCN.2.000230


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Abstract

A local fairRate generator using fuzzy logic and the moving average technique is proposed for the resilient packet ring (RPR). The fuzzy local fairRate generator (FLAG) is designed to achieve both low convergence time and high system throughput, besides fairness. It contains three functional blocks, an adaptive fairRate calculator (AFC) to properly preproduce a local fairRate by the moving average technique, a fuzzy congestion detector (FCD) to intelligently estimate the congestion degree of the station, and a fuzzy fairRate generator (FFG) to precisely generate the local fairRate. Simulation results show that only the FLAG can stabilize all flows in parking lot scenarios with different finite traffic demands, compared with the conventional aggressive mode (AM) and distributed bandwidth allocation (DBA) fairness algorithms. Also, it attains a convergence time lower than the AM fairness algorithm by at least 7 times and the DBA fairness algorithm by at least 2 times in parking lot scenarios with greedy traffic demands.

© 2010 Optical Society of America

OCIS Codes
(060.4510) Fiber optics and optical communications : Optical communications
(350.4800) Other areas of optics : Optical standards and testing
(060.4262) Fiber optics and optical communications : Networks, ring

ToC Category:
Research Papers

History
Original Manuscript: September 4, 2009
Revised Manuscript: March 3, 2010
Manuscript Accepted: March 12, 2010
Published: April 26, 2010

Citation
Wen-Shiang Tang, Chung-Ju Chang, Po-Long Tien, and Wei-Chien Wang, "FLAG: A Fuzzy Local FairRate Generator for Resilient Packet Ring," J. Opt. Commun. Netw. 2, 230-240 (2010)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-2-5-230

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