Distance and position estimation in visible light systems with RGB LEDs

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buir.contributor.authorGezici, Sinan
dc.citation.epage14en_US
dc.citation.spage1en_US
dc.citation.volumeNumber123en_US
dc.contributor.authorDemirel, I.
dc.contributor.authorGezici, Sinan
dc.date.accessioned2023-02-20T06:25:57Z
dc.date.available2023-02-20T06:25:57Z
dc.date.issued2022-01-17
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractIn this paper, distance and position estimation problems are investigated for visible light positioning (VLP) systems with red-green-blue (RGB) light emitting diodes (LEDs). The accuracy limits on distance and position estimation are calculated in terms of the Cramér-Rao lower bound (CRLB) for three different scenarios. Scenario 1 and Scenario 2 correspond to synchronous and asynchronous systems, respectively, with known channel attenuation formulas at the receiver. In Scenario 3, a synchronous system is considered but channel attenuation formulas are not known at the receiver. The derived CRLB expressions reveal the relations among distance/position estimation accuracies in the considered scenarios and lead to intuitive explanations for the benefits of using RGB LEDs. In addition, maximum likelihood (ML) estimators are derived in all scenarios, and it is shown that they can achieve close performance to the CRLBs in some cases for sufficiently high source optical powers. © 2022 Elsevier Inc.en_US
dc.identifier.doi10.1016/j.dsp.2022.103423en_US
dc.identifier.eissn1095-4333
dc.identifier.issn1051-2004
dc.identifier.urihttp://hdl.handle.net/11693/111538
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttps://dx.doi.org/10.1016/j.dsp.2022.103423en_US
dc.source.titleDigital Signal Processingen_US
dc.subjectCramér-Rao lower bounden_US
dc.subjectLEDen_US
dc.subjectMaximum likelihood estimationen_US
dc.subjectPositioningen_US
dc.subjectRGBen_US
dc.subjectVisible lighten_US
dc.titleDistance and position estimation in visible light systems with RGB LEDsen_US
dc.typeArticleen_US

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