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Shared Wavelength Assignment Algorithm in Multi-profile WDM-EPONs to Support Upstream Bandwidth Guarantees

  • Noemí Merayo
  • Patricia Fernández
  • Ramón J. Durán
  • Tamara Jiménez
  • Ignacio de Miguel
  • Juan C. Aguado
  • Rubén M. Lorenzo
  • Evaristo J. Abril
Conference paper
  • 383 Downloads
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 63)

Abstract

A novel wavelength and bandwidth allocation algorithm in WDM-EPON is proposed to provide subscriber differentiation by ensuring guaranteed bandwidth levels in the upstream direction. Contrary to previous schemes, the new algorithm is designed to save cost at both ends of the network, especially at the users’ side, as it restricts the number of upstream wavelengths which can be used by them. Simulation results show that ShaWaG achieves better performance than other bandwidth allocation algorithms in WDM-EPONs but simultaneously it requires lower number of upstream wavelengths. The novel algorithm makes fairer bandwidth distribution than those methods as it ensures efficiently a minimum guaranteed bandwidth to every subscriber for a larger number of ONUs when compared to existing methods.

Keywords

Wavelength Division Multiplexing (WDM) Dynamic Bandwidth Allocation (DBA) Ethernet Passive Optical Network (EPON) Service Level Agreement (SLA) Wavelength Dynamic Assignment 

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Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2011

Authors and Affiliations

  • Noemí Merayo
    • 1
  • Patricia Fernández
    • 1
  • Ramón J. Durán
    • 1
  • Tamara Jiménez
    • 1
  • Ignacio de Miguel
    • 1
  • Juan C. Aguado
    • 1
  • Rubén M. Lorenzo
    • 1
  • Evaristo J. Abril
    • 1
  1. 1.Optical Communications Group Department of Signal Theory, Communications and Telematic EngineeringE.T.S.I. Telecomunicación, University of Valladolid (Spain)ValladolidSpain

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