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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 4, Iss. 3 — Mar. 1, 2012
  • pp: 271–281

Code Division Multiple Access Enabled Dynamic Bandwidth Allocation (CDBA) Scheme for EPON

Elie Inaty, Robert Raad, Paul Fortier, and Martin Maier  »View Author Affiliations

Journal of Optical Communications and Networking, Vol. 4, Issue 3, pp. 271-281 (2012)

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In this paper, a code division multiple access (CDMA) enabled dynamic bandwidth allocation (CDBA) algorithm is proposed for the upstream access scheme for Ethernet passive optical networks. The CDBA algorithm is based on two major components. The first is the parallel transmission capacity offered by CDMA according to the quality-of-service requirement, and the second is the scheduling algorithm, which uses the round robin technique. The CDBA algorithm is presented and its cycle time is derived. The performance of the proposed algorithm is studied, assuming that the traffic load is symmetric and that the packet arrivals are Poisson distributed. Extensive simulations have been performed in order to compare the proposed CDBA algorithm with existing dynamic bandwidth allocation algorithms that achieve good bandwidth utilization by use of polling schemes. It is shown that the CDBA algorithm can significantly improve the network performance in terms of packet delay, throughput, and queue size management as compared with the well-known interleaved polling with adaptive cycle time algorithm.

© 2012 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.1155) Fiber optics and optical communications : All-optical networks
(060.4256) Fiber optics and optical communications : Networks, network optimization

ToC Category:
Research Papers

Original Manuscript: March 3, 2011
Revised Manuscript: January 27, 2012
Manuscript Accepted: February 2, 2012
Published: February 29, 2012

Elie Inaty, Robert Raad, Paul Fortier, and Martin Maier, "Code Division Multiple Access Enabled Dynamic Bandwidth Allocation (CDBA) Scheme for EPON," J. Opt. Commun. Netw. 4, 271-281 (2012)

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