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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 12, Iss. 5 — May. 1, 2014
  • pp: 050602–

Performance evaluation of a WDM/OCDM based hybrid optical switch utilizing efficient resource allocation

Ahmed Nabih Zaki Rashed, Abd-Elnaser A. Mohammed, and Osama M. A. Dardeer  »View Author Affiliations


Chinese Optics Letters, Vol. 12, Issue 5, pp. 050602- (2014)


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Abstract

A hybrid optical switch (HOS) with physical layer of wavelength division multiplexing and optical code division multiplexing (WDM/OCDM) scheme is proposed. An additional feature to the HOS than optical cross connect (OXC) is that the controller can process requests for both circuit establishment and burst scheduling. In our study, the measurement criteria of HOS are the blocking probability, probability of error, and probability of outage. To simplify the analysis, no distinction is made between a circuit in progress and a burst in progress. Moreover, a minimum fit (MinF) resource allocation strategy is applied in order to increase the bandwidth efficiency and control the multiplexing interference of the OCDM. A 2D Markov model for the HOS is presented using the MinF strategy. Numerical results reveal that the code parameters and the resource allocation strategy greatly affect the performance. Certain periority can be achieved by assigning shorter codes to high periority users and longer codes to low periority users. Also, the probability of error and outage are reduced by appling the MinF strategy.

© 2014 Chinese Optics Letters

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.1660) Fiber optics and optical communications : Coherent communications
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(060.2310) Fiber optics and optical communications : Fiber optics
(060.1155) Fiber optics and optical communications : All-optical networks

ToC Category:
Fiber Optics and Optical Communications

Citation
Ahmed Nabih Zaki Rashed, Abd-Elnaser A. Mohammed, and Osama M. A. Dardeer, "Performance evaluation of a WDM/OCDM based hybrid optical switch utilizing efficient resource allocation," Chin. Opt. Lett. 12, 050602- (2014)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-12-5-050602


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