RT info:eu-repo/semantics/article
T1 Fair bandwidth allocation algorithm for PONS based on network utility maximization
A1 Merayo Álvarez, Noemí
A1 Pavón Marino, Pablo
A1 Aguado Manzano, Juan Carlos
A1 Durán Barroso, Ramón José
A1 Burrull i Mestres, Francesc
A1 Bueno Delgado, María Victoria
K1 Asignación dinámica de ancho de banda (DBA)
K1 Red óptica pasiva (PON)
K1 Dynamic  bandwidth  allocation  (DBA)
K1 Passive  optical  network  (PON)
AB 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.
PB Institute of Electrical and Electronics Engineers (IEEE)
SN 1943-0639
YR 2017
FD 2017
LK http://uvadoc.uva.es/handle/10324/33489
UL http://uvadoc.uva.es/handle/10324/33489
LA eng
NO IEEE/OSA Journal of Optical Communications and Networking, 2017, Volume 9 , Issue 1, pp.  75 - 86
NO Producción Científica
DS UVaDOC
RD 24-nov-2024