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Rotated constellations for improved time and frequency diversity in DVB-NGH

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Rotated constellations for improved time and frequency diversity in DVB-NGH

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dc.contributor.author Gozálvez Serrano, David es_ES
dc.contributor.author Giménez Gandia, Jordi Joan es_ES
dc.contributor.author Gómez Barquero, David es_ES
dc.contributor.author Cardona Marcet, Narciso es_ES
dc.date.accessioned 2015-09-15T08:54:37Z
dc.date.available 2015-09-15T08:54:37Z
dc.date.issued 2013-06
dc.identifier.issn 0018-9316
dc.identifier.uri http://hdl.handle.net/10251/54638
dc.description “© 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.” es_ES
dc.description.abstract In this paper, we investigate the potential gains that can be obtained with rotated constellations in DVB-NGH, the next-generation mobile broadcasting standard. Rotated constellations exploit the concept of signal-space diversity (SSD) to increase the diversity order of bit-interleaved coded modulation (BICM) at the expense of higher demodulation complexity without the need of additional transmission power or bandwidth. Two-dimensional rotated constellations (2DRC) were originally included in DVB-T2 (terrestrial second generation) to improve the reception robustness in fading channels. DVB-NGH inherits the same 2DRC from DVB-T2 and includes four-dimensional rotated constellations (4DRC) for certain configurations. Moreover, the standard has adopted a new component interleaver optimized for the utilization of rotated constellations with long time interleaving (TI) and time-frequency slicing (TFS). In this context, the additional robustness of rotated constellations is very interesting to counter the presence of signal outages in the time and frequency domains. To investigate the potential gains of 2DRC and 4DRC, we employ an information-theoretic approach based on mutual information, as well as physical layer simulations in DVB-NGH systems. The results reveal that rotated constellations are important to increase the diversity gains of long TI and TFS, and also to reduce the zapping time perceived by the users. es_ES
dc.language Inglés es_ES
dc.publisher Institute of Electrical and Electronics Engineers (IEEE) es_ES
dc.relation.ispartof IEEE Transactions on Broadcasting es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Bit-interleaved coded modulation es_ES
dc.subject DVB-NGH es_ES
dc.subject DVB-T2 es_ES
dc.subject Rotated constellations es_ES
dc.subject Time interleaving es_ES
dc.subject Time-frequency slicing es_ES
dc.subject.classification TEORIA DE LA SEÑAL Y COMUNICACIONES es_ES
dc.title Rotated constellations for improved time and frequency diversity in DVB-NGH es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1109/TBC.2013.2252862
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Telecomunicación y Aplicaciones Multimedia - Institut Universitari de Telecomunicacions i Aplicacions Multimèdia es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Comunicaciones - Departament de Comunicacions es_ES
dc.description.bibliographicCitation Gozálvez Serrano, D.; Gimenez Gandia, JJ.; Gómez Barquero, D.; Cardona Marcet, N. (2013). Rotated constellations for improved time and frequency diversity in DVB-NGH. IEEE Transactions on Broadcasting. 59(2):298-305. doi:10.1109/TBC.2013.2252862 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1109/TBC.2013.2252862 es_ES
dc.description.upvformatpinicio 298 es_ES
dc.description.upvformatpfin 305 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 59 es_ES
dc.description.issue 2 es_ES
dc.relation.senia 247034 es_ES
dc.identifier.eissn 1557-9611


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