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Título: Fair bandwidth allocation algorithm for PONS based on network utility maximization
Autor: Merayo, Noemí
Pavón Marino, Pablo
Aguado, Juan Carlos
Durán Barroso, Ramón José
Burrull i Mestres, Francesc
Bueno Delgado, María Victoria
Año del Documento: 2017
Editorial: Institute of Electrical and Electronics Engineers (IEEE)
Descripción: Producción Científica
Documento Fuente: IEEE/OSA Journal of Optical Communications and Networking, 2017, Volume 9 , Issue 1, pp. 75 - 86
Resumen: Network utility maximization (NUM) models have been successfully applied to address multiple resource- allocation problems in communication networks. This paper explores, for the first time to our knowledge, their application to modeling the bandwidth-allocation problem in passive optical networks (PONs) and long-reach PONs. Using the NUM model, we propose the FEx-DBA (fair excess-dynamic bandwidth allocation) algorithm, a new DBA scheme to allow a fair and efficient allocation of the upstream channel capacity. The NUM framework provides the mathematical support to formally define the fairness concept in the resource allocation and the guidelines to devise FEx-DBA. A simulation study is conducted, whereby FEx-DBA is compared to a state-of-the-art proposal. We show that FEx-DBA (i) provides bandwidth guarantees to the users according to the service level agreement (SLA) contracted and fairly distributes the excess bandwidths among them; (ii) has a stable response and fast convergence when traffic or SLAs change, avoiding the oscillations appearing in other proposals; (iii) improves average delay and jitter measures; and (iv) only depends on a reduced set of parameters, which can be easily tuned.
Palabras Clave: Asignación dinámica de ancho de banda (DBA)
Red óptica pasiva (PON)
Dynamic bandwidth allocation (DBA)
Passive optical network (PON)
ISSN: 1943-0639
Revisión por Pares: SI
DOI: https://doi.org/ 10.1364/JOCN.9.000075
Patrocinador: Ministerio de Ciencia e Innovación (Projects TEC2014-53071-C3-2-P and TEC2015-71932-REDT)
Version del Editor: https://ieeexplore.ieee.org/document/7830276
Propietario de los Derechos: © 2017 Optical Society of America
Idioma: eng
URI: http://uvadoc.uva.es/handle/10324/33489
Derechos: info:eu-repo/semantics/openAccess
Aparece en las colecciones:DEP71 - Artículos de revista

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