Show simple item record

dc.contributor.authorRiba Sagarra, Jaume
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.date.accessioned2008-01-23T09:01:15Z
dc.date.available2008-01-23T09:01:15Z
dc.date.created2003-03-21
dc.date.issued2004-11-30
dc.identifier.citationRiba Sagarra, J. A performance lower bound for quadratic timing recovery accounting for the symbol transition density. IEEE Transactions on Signal Processing, 2004, vol 52, núm. 11, p. 3278-3288
dc.identifier.issn1053-587X
dc.identifier.urihttp://hdl.handle.net/2117/1520
dc.description.abstractThe symbol transition density in a digitally modulated signal affects the performance of practical synchronization schemes designed for timing recovery. This paper focuses on the derivation of simple performance limits for the estimation of the time delay of a noisy linearly modulated signal in the presence of various degrees of symbol correlation produced by the various transition densities in the symbol streams. The paper develops high- and low-signal-to-noise ratio (SNR) approximations of the so-called (Gaussian) unconditional Cramér–Rao bound (UCRB), as well as general expressions that are applicable in all ranges of SNR. The derived bounds are valid only for the class of quadratic, non-data-aided (NDA) timing recovery schemes. To illustrate the validity of the derived bounds, they are compared with the actual performance achieved by some well-known quadratic NDA timing recovery schemes. The impact of the symbol transition density on the classical threshold effect present in NDA timing recovery schemes is also analyzed. Previous work on performance bounds for timing recovery from various authors is generalized and unified in this contribution.
dc.format.extent3278-3288
dc.language.isoeng
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal
dc.subject.lcshTelecommunication systems
dc.subject.lcshSignal processing -- Digital techniques
dc.subject.otherBandlimited communication
dc.subject.otherCorrelation methods
dc.subject.otherDelay estimation
dc.subject.otherGaussian processes
dc.subject.otherModulation
dc.subject.otherPractical synchronization scheme
dc.subject.otherCML
dc.subject.otherCramér-Rao bound
dc.subject.otherCRB
dc.subject.otherMaximum likelihood estimation
dc.subject.otherSymbol transition density
dc.subject.otherQuadratic timing recovery
dc.subject.otherUML
dc.subject.otherNoisy linearly modulated signal
dc.subject.otherSNR
dc.subject.otherSignal-to-noise ratio approximation
dc.subject.otherNondata-aided timing recovery
dc.subject.otherBandlimited channels
dc.subject.otherDigitally modulated signal
dc.subject.otherUnconditional Cramer-Rao bound
dc.titleA performance lower bound for quadratic timing recovery accounting for the symbol transition density
dc.typeArticle
dc.subject.lemacSistemes de telecomunicació
dc.subject.lemacProcessament del senyal -- Tècniques digitals
dc.contributor.groupUniversitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.relation.projectidcttTEC2004-04526
dc.relation.projectidcttTIC2003-05482
dc.relation.projectidcttTIC2002-04594
dc.relation.projectidcttTIC2001-2356
dc.relation.projectidcttTIC2000-1025
dc.relation.projectidctt2001SGR-00268


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder