Exploiting flexible functional split in converged software defined access networks

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dc.contributor.author Marotta, Andrea
dc.contributor.author Cassioli, Dajana
dc.contributor.author Kondepu, Koteswararao
dc.contributor.author Antonelli, Cristian
dc.contributor.author Valcarenghi, Luca
dc.date.accessioned 2020-01-09T11:58:50Z
dc.date.available 2020-01-09T11:58:50Z
dc.date.issued 2019-11-01
dc.identifier.bibliographicCitation Marotta, A., Cassioli, D., Kondepu, K., Antonelli, C. y Valcarenghi, L. (2019). Exploiting flexible functional split in converged software defined access networks. Journal of Optical Communications and Networking, 11(11), pp. 536-546.
dc.identifier.issn 1943-0620
dc.identifier.uri http://hdl.handle.net/10016/29420
dc.description.abstract 5G targets to offer a huge network capacity to support the expected unprecedented traffic growth due mainly to mobile and machine-type services. Thus, the 5G access network has to comply with very challenging architectural requirements. Mobile network scalability is achieved by playing appropriately with the centralization of network functions and by applying the functional split introducing the fronthaul. Although more advantageous in terms of network management and performance optimization, low-layer functional split options require larger bandwidth and lower latency to be guaranteed by the fronthaul in the access network, while preserving other concurrent fiber-to-the-x services. Thus, advanced mechanisms for the efficient management of available resources in the access network are required to control jointly both radio and optical domains. Softwarized mobile and optical segments facilitate the introduction of dedicated protocols to enable the inter-working of the two control planes. This paper proposes a new cooperation scheme to manage the adaptive flexible functional split in 5G networks conditioned to the resource availability in the optical access network. Techniques for the accurate estimation of available bandwidth and the associated real-time selection of the best suitable functional split option are investigated. Results show that the proposed software defined converged approach to wavelength and bandwidth management guarantees the optimal allocation of optical resources. The triple exponential smoothing forecasting technique enables efficient coexistence of mobile fronthaul and fixed connectivity traffic in the network, reducing traffic impairments with respect to other well-known forecasting techniques, while keeping the same level of centralization.
dc.description.sponsorship This work was partially supported by the Italian Government under CIPE resolution no. 135 (December 21, 2012), project INnovating City Planning through Information and Communication Technologies (INCIPICT) and by the EC through the H2020 5G-TRANSFORMER project (Project ID 761536).
dc.format.extent 11
dc.language.iso eng
dc.publisher IEEE
dc.rights © 2019 Optical Society of America
dc.title Exploiting flexible functional split in converged software defined access networks
dc.type article
dc.subject.eciencia Telecomunicaciones
dc.identifier.doi https://doi.org/10.1364/JOCN.11.000536
dc.rights.accessRights openAccess
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/761536
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 536
dc.identifier.publicationissue 11
dc.identifier.publicationlastpage 546
dc.identifier.publicationtitle Journal of Optical Communications and Networking
dc.identifier.publicationvolume 11
dc.contributor.funder European Commission
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