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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: O. Gerstel and P. Iannone
  • Vol. 6, Iss. 8 — Aug. 1, 2014
  • pp: 670–683

Multirate Multiservice All-Optical Code Switched GMPLS Core Network Utilizing Multicode Variable-Weight Optical Code-Division Multiplexing

Ahmed E. Farghal, Hossam M. H. Shalaby, and Zen Kawasaki  »View Author Affiliations

Journal of Optical Communications and Networking, Vol. 6, Issue 8, pp. 670-683 (2014)

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A multicode variable-weight (MCVW) technique is proposed for generalized multiprotocol label switching (GMPLS) optical networks in order to support multirate and integrated multimedia services. Under this technique, the number of simultaneously assigned codewords to each user is a function of the data rate of the service class, while quality-of-service differentiation is achieved using variable-weight codewords for each service class. The traffic behavior of the network is modeled using a multiservice loss model, and the probability density functions of the number of busy codes in the fiber link are obtained by the Kaufman–Roberts algorithm. In order to analyze the performance of the proposed multiservice multicode GMPLS optical network, several measures are derived and investigated, specifically, the bit-error rate, probability of degradation, blocking probability, and steady-state throughput. These performance measures are obtained for two different receiver structures, namely, correlation receivers with and without hard limiters. The performance of our optical GMPLS network, based on the multicode switching path, is compared with that of traditional optical GMPLS networks, based on the label switching path. The results show the superiority of the proposed technique when compared to traditional ones.

© 2014 Optical Society of America

OCIS Codes
(060.4230) Fiber optics and optical communications : Multiplexing
(060.4510) Fiber optics and optical communications : Optical communications
(060.1155) Fiber optics and optical communications : All-optical networks
(060.4259) Fiber optics and optical communications : Networks, packet-switched

ToC Category:
Research Papers

Original Manuscript: December 4, 2013
Revised Manuscript: April 8, 2014
Manuscript Accepted: June 11, 2014
Published: July 14, 2014

Ahmed E. Farghal, Hossam M. H. Shalaby, and Zen Kawasaki, "Multirate Multiservice All-Optical Code Switched GMPLS Core Network Utilizing Multicode Variable-Weight Optical Code-Division Multiplexing," J. Opt. Commun. Netw. 6, 670-683 (2014)

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