Publication:
Energy Efficient Peak Power Reduction in OFDM with Amplitude Predistortion Aided by Orthogonal Pilots

dc.affiliation.dptoUC3M. Departamento de Teoría de la Señal y Comunicacioneses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Comunicacioneses
dc.contributor.authorParedes Paredes, Martha C.
dc.contributor.authorFernández-Getino García, María Julia
dc.date.accessioned2015-06-23T08:37:10Z
dc.date.available2015-06-23T08:37:10Z
dc.date.issued2013-02
dc.description.abstractThe high Peak-to-Average Power Ratio (PAPR) is a main drawback of Orthogonal Frequency Division Multiplexing (OFDM) systems. We propose a two-step technique to reduce the PAPR consisting of a metric-based constellation extension method, such as Simple Amplitude Predistortion (SAP) algorithm, aided by Orthogonal Pilot Sequences (OPS) in a previous step, where we also provide a low-complex implementation of OPS scheme. We show that our proposal, named OP-SAP, outperforms previous approaches in terms of PAPR reduction, due to joining the benefits of Orthogonal Pilots with SAP algorithm. Moreover, it is energy efficient within two aspects: transmitted energy and implementation energy. OP-SAP saves up to 57% of transmitted energy per predistorted symbol compared to SAP. Regarding implementation energy, PAPR reduction techniques introduce some additional computational complexity, which requires extra cycles in the processor that demand energy consumption. We present an exhaustive analysis on computational power cost that shows the low power consumption of OP-SAP compared to other methods as SeLected Mapping (SLM), what yields a remarkable energy saving in its practical implementation.en
dc.description.sponsorshipThis work was supported in part by the Spanish National Projects GRE3N-SYST (TEC2011-29006-C03-03) and COMONSENS (CSD2008-00010), Fundación Carolina (Spain), and SENESCYT (Ecuador).en
dc.description.statusPublicado
dc.format.extent9
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationIEEE Transactions on Consumer Electronics 59 (2013) 1, pp. 45-53en
dc.identifier.doi10.1109/TCE.2013.6490240
dc.identifier.issn0098-3063
dc.identifier.publicationfirstpage45
dc.identifier.publicationissue1
dc.identifier.publicationlastpage53
dc.identifier.publicationtitleIEEE Transactions on consumer electronicsen
dc.identifier.publicationvolume59
dc.identifier.urihttps://hdl.handle.net/10016/21176
dc.identifier.uxxiAR/0000013232
dc.language.isoeng
dc.publisherIEEEen
dc.relation.projectIDGobierno de España. TEC2011-29006-C03-03es
dc.relation.publisherversionhttp://dx.doi.org/10.1109/TCE.2013.6490240
dc.rights© 2013 IEEEen
dc.rights.accessRightsopen access
dc.subject.ecienciaTelecomunicacioneses
dc.subject.otherOFDMen
dc.subject.otherPeak to average power ratioen
dc.subject.otherEnergy efficiencyen
dc.subject.otherComputational complexityen
dc.titleEnergy Efficient Peak Power Reduction in OFDM with Amplitude Predistortion Aided by Orthogonal Pilotsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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