Fundamental limits on localization in single input multiple output visible light systems

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buir.advisorGezici, Sinan
dc.contributor.authorKökdoğan, Furkan
dc.date.accessioned2017-09-20T11:40:59Z
dc.date.available2017-09-20T11:40:59Z
dc.date.copyright2017-09
dc.date.issued2017-09
dc.date.submitted2017-09-20
dc.descriptionCataloged from PDF version of article.en_US
dc.descriptionThesis (M.S.): Bilkent University, Department of Electrical and Electronics Engineering, İhsan Doğramacı Bilkent University, 2017.en_US
dc.descriptionIncludes bibliographical references (leaves 38-42).en_US
dc.description.abstractVisible light systems have recently been considered as an e ective and promising solution for indoor positioning. In this thesis, a theoretical accuracy analysis is conducted for position estimation in visible light systems based on received signal strength (RSS) measurements. Considering a single light emitting diode (LED) at the transmitter and multiple photo-detectors (PDs) at the receiver, the Cram er-Rao lower bound (CRLB) is derived for both a generic three-dimensional scenario and speci c con gurations of the PDs at the receiver. For the special case in which the height of the receiver is known, a compact expression is derived for the CRLB, considering a uniform circular layout and the same elevation angle for all the PDs. Asymptotic analysis and accuracy of derived compact expression is investigated for this con guration of the system. In addition, the optimal placement of the PDs at the receiver is investigated by taking the e ects of the elevation angle parameter of the PDs into consideration. The optimal values are obtained theoretically and also veri ed by simulations. Numerical examples are presented to illustrate the impacts of system parameters on localization accuracy, namely radius of the uniform circular layout, elevation angle and number of PDs. Finally, theoretical limits are compared against the maximum likelihood estimator (MLE) as a benchmark to evaluate the performance of receiver position estimation.en_US
dc.description.provenanceSubmitted by Betül Özen (ozen@bilkent.edu.tr) on 2017-09-20T11:40:59Z No. of bitstreams: 1 10164662.pdf: 657590 bytes, checksum: 7b1174d8ed45fa1258ddad6eb45cdf71 (MD5)en
dc.description.provenanceMade available in DSpace on 2017-09-20T11:40:59Z (GMT). No. of bitstreams: 1 10164662.pdf: 657590 bytes, checksum: 7b1174d8ed45fa1258ddad6eb45cdf71 (MD5) Previous issue date: 2017-09en
dc.description.statementofresponsibilityby Furkan Kökdoğan.en_US
dc.embargo.release2019-09-15
dc.format.extentix, 42 leaves : charts ; 30 cmen_US
dc.identifier.itemidB156480
dc.identifier.urihttp://hdl.handle.net/11693/33651
dc.language.isoEnglishen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCramér-Rao lower bounden_US
dc.subjectEstimationen_US
dc.subjectVisible lighten_US
dc.subjectPositioningen_US
dc.subjectSingle input multiple output (SIMO)en_US
dc.subjectLambertian patternen_US
dc.subjectReceived signal strengthen_US
dc.subjectMaximum likelihood estimatoren_US
dc.titleFundamental limits on localization in single input multiple output visible light systemsen_US
dc.title.alternativeTek girdili çok çıktılı görünür ışık sistemleri ile konumlandırmada temel limitleren_US
dc.typeThesisen_US
thesis.degree.disciplineElectrical and Electronic Engineering
thesis.degree.grantorBilkent University
thesis.degree.levelMaster's
thesis.degree.nameMS (Master of Science)

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