On the fairness of dynamic bandwidth allocation schemes in Ethernet passive optical networks

Authors:
Xiaofeng Bai;Abdallah Shami;Chadi Assi
Affiliations:
Department of Electrical and Computer Engineering, The University of Western Ontario, London, Canada;Department of Electrical and Computer Engineering, The University of Western Ontario, London, Canada;Concordia Institute for Information Systems Engineering, Concordia University, Montreal, Canada
Venue:
Computer Communications
Year:
2006

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Abstract

Ethernet passive optical networks (EPONs) technology has emerged as a promising candidate for next-generation broadband access networks. As this technology evolves, the development of efficient dynamic bandwidth allocation (DBA) algorithms has become a key concern. This paper devises and presents the principle and implementation issues of a new robust DBA scheme. This proposed scheme consistently maintains a robust fairness mechanism in the DBA operation. With the better maintained fairness mechanism, network performance is improved; specifically average packet delay and upstream link utilization, as well as inter-ONU statistical bandwidth multiplexing. Detailed simulation experiments are presented to study the performance and to validate the effectiveness of the proposed algorithm.