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dc.contributor.authorGonzález González, David
dc.contributor.authorGarcía Lozano, Mario
dc.contributor.authorRuiz Boqué, Sílvia
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.date.accessioned2015-05-29T12:56:01Z
dc.date.created2014-12-18
dc.date.issued2014-12-18
dc.identifier.citationDavid Gonzalez G.; Garcia-Lozano, M.; Ruiz, S. Intercell interference coordination for control channels in LTE and LTE-A: an optimization scheme based on evolutionary algorithms. "Wireless personal communications", 18 Desembre 2014.
dc.identifier.issn0929-6212
dc.identifier.urihttp://hdl.handle.net/2117/28102
dc.description.abstractIntercell Interference Coordination (ICIC) encompasses techniques aiming at reducing the intercell interference at cell edges, an issue affecting not only data but also control channels in Long Term Evolution (LTE) and LTE-Advanced (LTE-A). This paper presents several ICIC-based optimization schemes to improve the performance of the control channels: the Physical Downlink Control Channel (PDCCH) in LTE and the enhanced PDCCH (ePDCCH) in LTE-A. The study is focused on realistic deployments, where the amount of intercell interference received at different cells varies considerably, making very difficult the task of homogenizing the performance of the ePDCCH in the coverage area. The PDCCH is time-multiplexed, and hence, traditional ICIC schemes such as Soft Frequency Reuse cannot be applied. As an answer to this, LTE-A introduces the ePDCCH. This new structure increases the signaling capacity and allows frequency domain ICIC. However, the optimization of the ePDCCH poses a new problem. The resources devoted to the ePDCCH need to be borrowed from the data channels. In order to address these problems, several multiobjective optimization schemes based on evolutionary algorithms are proposed to adjusts the configuration of the control channels, and consequently, to reduce the consumption of control resources. The results show that significant capacity gains, up to 30%, are obtained in severely interfered cells with notorious savings in terms of transmitted power.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
dc.subject.lcshLong-Term Evolution (Telecommunications)
dc.subject.lcshMobile communication systems
dc.subject.otherIntercell interference Coordination
dc.subject.otherICIC
dc.subject.otherSoft frequency reuse
dc.subject.otherSFR
dc.subject.otherEvolutionary optimization
dc.subject.otherPareto efficiency
dc.titleIntercell interference coordination for control channels in LTE and LTE-A: an optimization scheme based on evolutionary algorithms
dc.typeArticle
dc.subject.lemacLong-term evolution (Telecomunicacions)
dc.subject.lemacComunicacions mòbils, Sistemes de
dc.contributor.groupUniversitat Politècnica de Catalunya. WiComTec - Tecnologies i Comunicacions sense fils
dc.identifier.doi10.1007/s11277-014-2222-0
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://link.springer.com/article/10.1007/s11277-014-2222-0
dc.rights.accessRestricted access - publisher's policy
drac.iddocument15356919
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
upcommons.citation.authorDavid Gonzalez G.; Garcia-Lozano, M.; Ruiz, S.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameWireless personal communications
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