A unified treatment of optimum pilot overhead in multipath fading channels

Mostra el registre complet Registre parcial de l'ítem

• dc.contributor.author Jindal, Niharca
• dc.contributor.author Lozano Solsona, Angelca
• dc.contributor.other Universitat Pompeu Fabraca
• dc.date.accessioned 2011-11-11T12:50:46Z
• dc.date.available 2011-11-11T12:50:46Z
• dc.date.issued 2010ca
• dc.description.abstract The optimization of the pilot overhead in single-user wireless fading channels is investigated, and the dependence of this overhead on various system parameters of interest (e.g., fading rate, signal-to-noise ratio) is quantified. The achievable pilot-based spectral efficiency is expanded with respect to the fading rate about the no-fading point, which leads to an accurate order expansion for the pilot overhead. This expansion identifies that the pilot overhead, as well as the spectral efficiency penalty with respect to a reference system with genie-aided CSI (channel state information) at the receiver, depend on the square root of the normalized Doppler frequency. It is also shown that the widely-used block fading model is a special case of more accurate continuous fading models in terms of the achievable pilot-based spectral efficiency. Furthermore, it is established that the overhead optimization for multiantenna systems is effectively the same as for single-antenna systems with the normalized Doppler frequency multiplied by the number of transmit antennas.en
• dc.description.sponsorship Work supported by the Spanish Ministry of Science and Innovation (Refs. TEC2009-13000 and CONSOLIDER-INGENIO CSD2008-00010 ”COMONSENS”)en
• dc.format.mimetype application/pdfca
• dc.identifier.citation Jindal N, Lozano A. A unified treatment of optimum pilot overhead in multipath fading channels. IEEE transactions on communications. 2010; 58(10): 2939-2948. DOI 10.1109/TCOMM.2010.083110.090696
• dc.identifier.doi http://dx.doi.org/10.1109/TCOMM.2010.083110.090696
• dc.identifier.issn 0090-6778
• dc.identifier.uri http://hdl.handle.net/10230/13027
• dc.language.iso engca
• dc.publisher Institute of Electrical and Electronics Engineers (IEEE)ca
• dc.relation.ispartof IEEE transactions on communications. 2010;58(10):2939-48
• dc.relation.projectID info:eu-repo/grantAgreement/ES/3PN/TEC2009-13000
• dc.relation.projectID info:eu-repo/grantAgreement/ES/3PN/CSD2008-00010
• dc.rights © 2010 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./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5567190ca
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.subject.keyword MIMOen
• dc.subject.keyword Spectral efficiencyen
• dc.subject.keyword Channel estimationen
• dc.subject.keyword Doppler spectrumen
• dc.subject.keyword Multiantennaen
• dc.subject.keyword Mutual informationen
• dc.subject.other Doppler, Efecteca
• dc.subject.other Comunicació sense fil, Sistemes deca
• dc.subject.other Ràdio -- Antenesca
• dc.title A unified treatment of optimum pilot overhead in multipath fading channelsca
• dc.type info:eu-repo/semantics/articleca
• dc.type.version info:eu-repo/semantics/acceptedVersionen