Upstream traffic capacity of a WDM EPON under online GATE-driven scheduling

Abstract : Passive optical networks are increasingly used for access to the Internet and it is important to understand the performance of future long-reach, multi-channel variants. In this paper we discuss requirements on the dynamic bandwidth allocation (DBA) algorithm used to manage the upstream resource in a WDM EPON and propose a simple novel DBA algorithm that is considerably more efficient than classical approaches. We demonstrate that the algorithm emulates a multi-server polling system and derive capacity formulas that are valid for general traffic processes. We evaluate delay performance by simulation demonstrating the superiority of the proposed scheduler. The proposed scheduler offers considerable flexibility and is particularly efficient in long-reach access networks where propagation times are high.
Type de document :
Pré-publication, Document de travail
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Contributeur : Philippe Robert <>
Soumis le : jeudi 26 août 2010 - 14:48:17
Dernière modification le : vendredi 25 mai 2018 - 12:02:03

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  • HAL Id : inria-00511873, version 1
  • ARXIV : 1002.2384



Nelson Antunes, Christine Fricker, Philippe Robert, James Roberts. Upstream traffic capacity of a WDM EPON under online GATE-driven scheduling. 2010. 〈inria-00511873〉



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