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dc.contributor.authorZehri, Mohammad Habib
dc.contributor.authorHaastrup, Adebanjo
dc.contributor.authorRincón Rivera, David
dc.contributor.authorPiney da Silva, José Ramón
dc.contributor.authorSallent Ribes, Sebastián
dc.contributor.authorBazzi, Ali
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria Telemàtica
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Telemàtica
dc.date.accessioned2022-01-18T10:13:36Z
dc.date.available2022-01-18T10:13:36Z
dc.date.issued2021-05-10
dc.identifier.citationZehri, M. [et al.]. A QoS-Aware Dynamic Bandwidth Allocation algorithm for passive optical networks with non-zero laser tuning time. "Photonics", 10 Maig 2021, vol. 8, núm. 5, article 159.
dc.identifier.issn2304-6732
dc.identifier.urihttp://hdl.handle.net/2117/359884
dc.description.abstractThe deployment of new 5G services and future demands for 6G make it necessary to increase the performance of access networks. This challenge has prompted the development of new standardization proposals for Passive Optical access Networks (PONs) that offer greater bandwidth, greater reach and a higher rate of aggregation of users per fiber, being Time- and Wavelength-Division Multiplexing (TWDM) a promising technological solution for increasing the capacity by up to 40 Gbps by using several wavelengths. This solution introduces tunable transceivers into the Optical Network Units (ONUs) for switching from one wavelength to the other, thus addressing the ever-increasing bandwidth demands in residential broadband and mobile fronthaul networks based on Fiber to the Home (FTTH) technology. This adds complexity and sources of inefficiency, such as the laser tuning time (LTT) delay, which is often ignored when evaluating the performance of Dynamic Bandwidth Allocation (DBA) mechanisms. We present a novel DBA algorithm that dynamically handles the allocation of bandwidth and switches the ONUs’ lasers from one wavelength to the other while taking LTT into consideration. To optimize the packet delay, we introduce a scheduling mechanism that follows the Longest Processing Time first (LPT) scheduling discipline, which is implemented over the Interleaved Polling with Adaptive Cycle Time (IPACT) DBA. We also provide quality of service (QoS) differentiation by introducing the Max-Min Weighted Fair Share Queuing principle (WFQ) into the algorithm. The performance of our algorithm is evaluated through simulations against the original IPACT algorithm, which we have extended to support multi-wavelengths. With the introduction of LPT, we obtain an improved performance of up to 73% reduction in queue delay over IPACT while achieving QoS differentiation with WFQ.
dc.description.sponsorshipThis work has been supported by the Agencia Estatal de Investigación of Spain under project PID2019‐108713RB‐C51/AEI/10.13039/501100011033.
dc.language.isoeng
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica
dc.subject.lcshPhotonics
dc.subject.otherPassive optical networks
dc.subject.otherLaser tuning time
dc.subject.otherTWDM
dc.subject.otherDynamic bandwidth allocation
dc.subject.otherOptical access networks
dc.subject.otherScheduling
dc.titleA QoS-Aware Dynamic Bandwidth Allocation algorithm for passive optical networks with non-zero laser tuning time
dc.typeArticle
dc.subject.lemacFotònica
dc.contributor.groupUniversitat Politècnica de Catalunya. BAMPLA - Disseny i Avaluació de Xarxes i Serveis de Banda Ampla
dc.identifier.doi10.3390/photonics8050159
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.mdpi.com/2304-6732/8/5/159
dc.rights.accessOpen Access
local.identifier.drac31277903
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-108713RB-C51/ES/EVOLUCION HACIA REDES Y SERVICIOS AUTO-GESTIONADOS PARA EL 5G DEL FUTURO/
local.citation.authorZehri, M.; Haastrup, A.; Rincon, D.; Piney, J.; Sallent, S.; Bazzi, A.
local.citation.publicationNamePhotonics
local.citation.volume8
local.citation.number5, article 159
dc.description.sdgObjectius de Desenvolupament Sostenible::9 - Indústria, Innovació i Infraestructura
dc.description.sdgObjectius de Desenvolupament Sostenible::9 - Indústria, Innovació i Infraestructura::9.1 - Desenvolupar infraestructures fiables, sostenibles, resilients i de qualitat, incloent infraestructures regionals i transfrontereres, per tal de donar suport al desenvolupament econòmic i al benestar humà, amb especial atenció a l’accés assequible i equitatiu per a totes les persones
dc.description.sdgObjectius de Desenvolupament Sostenible::9 - Indústria, Innovació i Infraestructura::9.4 - Per a 2030, modernitzar les infraestructures i reconvertir les indústries perquè siguin sostenibles, usant els recursos amb més eficàcia i promovent l’adopció de tecnologies i processos industrials nets i racionals ambiental­ment, i aconseguint que tots els països adoptin mesures d’acord amb les capacitats respectives


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