Improved lower bounds for ranging in synchronous visible light positioning systems

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buir.contributor.authorGezici, Sinan
dc.citation.epage5504en_US
dc.citation.issueNumber23en_US
dc.citation.spage5496en_US
dc.citation.volumeNumber34en_US
dc.contributor.authorKeskin, M. F.en_US
dc.contributor.authorGonendik, E.en_US
dc.contributor.authorGezici, Sinanen_US
dc.date.accessioned2018-04-12T10:43:14Z
dc.date.available2018-04-12T10:43:14Z
dc.date.issued2016en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractIn this study, the Ziv-Zakai bound (ZZB) is derived for synchronous visible light positioning (VLP) systems. The proposed ZZB extracts ranging information from the prior information, the time delay parameter, and the channel attenuation factor based on the Lambertian pattern. In addition to the ZZB, the Bayesian Cram�r-Rao bound (CRB) and the weighted CRB (WCRB) are calculated for synchronous VLP systems. Furthermore, a closed-form expression is obtained for the expectation of the conditional CRB (ECRB). Numerical examples are presented to compare the bounds against each other and against the maximum a posteriori probability (MAP) estimator. It is observed that the ZZB can provide a reasonable lower limit on the performance of MAP estimators. On the other hand, the WCRB and the ECRB converge to the ZZB in regions of low and high source optical powers, respectively; however, they are not tight in other regions. � 2016 IEEE.en_US
dc.identifier.doi10.1109/JLT.2016.2620518en_US
dc.identifier.issn0733-8724
dc.identifier.urihttp://hdl.handle.net/11693/36524
dc.language.isoEnglishen_US
dc.publisherInstitute of Electrical and Electronics Engineers Inc.en_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/JLT.2016.2620518en_US
dc.source.titleJournal of Lightwave Technologyen_US
dc.subjectEstimationen_US
dc.subjectLambertian patternen_US
dc.subjectPositioningen_US
dc.subjectVisible lighten_US
dc.subjectZiv-Zakai bounden_US
dc.titleImproved lower bounds for ranging in synchronous visible light positioning systemsen_US
dc.typeArticleen_US
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