dc.contributor.advisor | Gezici, Sinan | |
dc.contributor.author | Kökdoğan, Furkan | |
dc.date.accessioned | 2017-09-20T11:40:59Z | |
dc.date.available | 2017-09-20T11:40:59Z | |
dc.date.copyright | 2017-09 | |
dc.date.issued | 2017-09 | |
dc.date.submitted | 2017-09-20 | |
dc.identifier.uri | http://hdl.handle.net/11693/33651 | |
dc.description | Cataloged from PDF version of article. | en_US |
dc.description | Thesis (M.S.): Bilkent University, Department of Electrical and Electronics Engineering, İhsan Doğramacı Bilkent University, 2017. | en_US |
dc.description | Includes bibliographical references (leaves 38-42). | en_US |
dc.description.abstract | Visible 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.statementofresponsibility | by Furkan Kökdoğan. | en_US |
dc.format.extent | ix, 42 leaves : charts ; 30 cm | en_US |
dc.language.iso | English | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Cramér-Rao lower bound | en_US |
dc.subject | Estimation | en_US |
dc.subject | Visible light | en_US |
dc.subject | Positioning | en_US |
dc.subject | Single input multiple output (SIMO) | en_US |
dc.subject | Lambertian pattern | en_US |
dc.subject | Received signal strength | en_US |
dc.subject | Maximum likelihood estimator | en_US |
dc.title | Fundamental limits on localization in single input multiple output visible light systems | en_US |
dc.title.alternative | Tek girdili çok çıktılı görünür ışık sistemleri ile konumlandırmada temel limitler | en_US |
dc.type | Thesis | en_US |
dc.department | Department of Electrical and Electronics Engineering | en_US |
dc.publisher | Bilkent University | en_US |
dc.description.degree | M.S. | en_US |
dc.identifier.itemid | B156480 | |
dc.embargo.release | 2019-09-15 | |