Optimal signal design for visible light positioning under power and illumination constraints

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buir.advisorGezici, Sinan
dc.contributor.authorYazar, Onurcan
dc.date.accessioned2021-11-23T05:17:28Z
dc.date.available2021-11-23T05:17:28Z
dc.date.copyright2021-11
dc.date.issued2021-11
dc.date.submitted2021-12-19
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionCataloged from PDF version of article.en_US
dc.descriptionThesis (Master's): Bilkent University, Department of Electrical and Electronics Engineering, İhsan Doğramacı Bilkent University, 2021.en_US
dc.descriptionIncludes bibliographical references (leaves 35-39).en_US
dc.description.abstractThe optimal design of transmit signals for light-emitting diodes (LEDs) in a visible light positioning (VLP) system is analyzed with the objectives of im-provements in localization accuracy and power efficiency. Specifically, the lo-calization performance maximization problem is addressed for asynchronous and synchronous VLP systems where certain system limitations including power con-sumption, illumination, and effective bandwidth are considered, and the localiza-tion performance is quantified using the Cram´er-Rao lower bound (CRLB). The formulated signal design problems are demonstrated to be convex optimization problems and some properties of the optimal signal design parameters are found. On the other hand, the signal design problem is also formulated for achieving the lowest possible power consumption while guaranteeing a certain localization ac-curacy. Then, the optimal signal design parameters resulted from the solution of these optimization problems are used to construct the optimal transmit signals in the LEDs. The advantages of the optimal signal design approach is demonstrated through the numerical experiments while also presenting a comparison with the state-of-the-art optimal power allocation method in the literature.en_US
dc.description.degreeM.S.en_US
dc.description.statementofresponsibilityby Onurcan Yazaren_US
dc.format.extentx, 39 leaves ; 30 cm.en_US
dc.identifier.itemidB126279
dc.identifier.urihttp://hdl.handle.net/11693/76694
dc.language.isoEnglishen_US
dc.publisherBilkent Universityen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectVisible light positioningen_US
dc.subjectPower efficiencyen_US
dc.subjectCramer-Rao lower bounden_US
dc.subjectConvex optimizationen_US
dc.subjectTransmit signal designen_US
dc.titleOptimal signal design for visible light positioning under power and illumination constraintsen_US
dc.title.alternativeGüç ve aydınlatma kısıtları altında görünür ışık konumlandırma için optimal sinyal tasarımıen_US
dc.typeThesisen_US

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Dept. of Electrical and Electronics Engineering - Master's degree