Fair bandwidth allocation algorithm for PONS based on network utility maximization
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AuthorMerayo Álvarez, Noemí; Pavón Mariño, Pablo; Aguado Manzano, Juan Carlos; Durán Barroso, Ramón José; Burrull i Mestres, Francesc; [et al.]
Knowledge AreaIngeniería Telemática
SponsorsThis work has been funded by Spanish Ministry of Science and Innovation (TEC2014-53071-C3-2-P and TEC2015-71932-REDT).
PublisherIEEE; Optical Society of America
Bibliographic CitationN. Merayo, P. Pavon-Marino, J. C. Aguado, R. J. Durán, F. Burrull and V. Bueno-Delgado, "Fair bandwidth allocation algorithm for PONS based on network utility maximization," in IEEE/OSA Journal of Optical Communications and Networking, vol. 9, no. 1, pp. 75-86, Jan. 2017, doi: 10.1364/JOCN.9.000075.
KeywordsDynamic Bandwidth Allocation (DBA)
Network Utility Maximization (NUM)
Passive Optical Network (PON)
Service Level Agreement (SLA)
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 ...
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