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dc.contributor.authorLema Rosas, María Ángel
dc.contributor.authorGarcía Lozano, Mario
dc.contributor.authorRuiz Boqué, Sílvia
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationLema, M. A., Garcia-Lozano, M., Ruiz, S. Cubic spline extrapolation for uplink channel quality prediction in LTE-A with carrier aggregation. "Transactions on emerging telecommunications technologies", 25 Maig 2015, p.1-12
dc.descriptionThis is the peer reviewed version of the following article: Lema, M. A., García-Lozano, M., and Ruiz, S. (2015), Cubic spline extrapolation for uplink channel quality prediction in LTE-A with carrier aggregation. Trans. Emerging Tel. Tech., doi: 10.1002/ett.2950., which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
dc.description.abstractIn the context of wireless communications, an accurate channel state information is the key to a correct radio resource management. In the uplink of long-term evolution advanced, obtaining up-to-date channel state information relies on user equipments that send sounding signals throughout the available bandwidth. This procedure is quite challenging when considering the ever increasing bandwidth demands and the introduction of carrier aggregation. Information from many radio resource blocks becomes outdated and unreliable for scheduling operations. Besides, interference values are much more variant than in the downlink due to changes in the position of interferers and their transmission power. This work proposes the introduction of a cubic spline extrapolation method to obtain a prediction horizon that allows extending the reliability of the channel quality evaluation along time. Although very high interference levels and variations thereof imply no gains, the mechanism succeeds with moderate interference, situation that can be provided by interference cancellation strategies.
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
dc.subject.lcshLong-Term Evolution (Telecommunications)
dc.titleCubic spline extrapolation for uplink channel quality prediction in LTE-A with carrier aggregation
dc.subject.lemacLong-term evolution (Telecomunicacions)
dc.contributor.groupUniversitat Politècnica de Catalunya. WiComTec - Grup de recerca en Tecnologies i Comunicacions Sense Fils
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
upcommons.citation.authorLema, M. A.; Garcia-Lozano, M.; Ruiz, S.
upcommons.citation.publicationNameTransactions on emerging telecommunications technologies

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