dc.contributor.authorDu, Pengfei
dc.contributor.authorZhang, Sheng
dc.contributor.authorChen, Chen
dc.contributor.authorAlphones, Arokiaswami
dc.contributor.authorZhong, Wen-De
dc.date.accessioned2019-08-06T08:37:56Z
dc.date.available2019-08-06T08:37:56Z
dc.date.issued2018
dc.identifier.citationDu, P., Zhang, S., Chen, C., Alphones, A., & Zhong, W.-D. (2018). Demonstration of a low-complexity indoor visible light positioning system using an enhanced TDOA scheme. IEEE Photonics Journal, 10(4), 7905110-. doi:10.1109/JPHOT.2018.2841831en_US
dc.identifier.issn1943-0655en_US
dc.identifier.urihttp://hdl.handle.net/10220/49563
dc.description.abstractIn this paper, a low-complexity time-difference-of-arrival (TDOA) based indoor visible light positioning (VLP) system using an enhanced practical localization scheme based on cross correlation is proposed and experimentally demonstrated. The proposed TDOA scheme offers two advantages: 1) the use of virtual local oscillator to replace the real local oscillator for cross correlation at the receiver side so as to reduce the hardware complexity; 2) the application of cubic spline interpolation on the correlation function to reduce the rigorous requirement on the sampling rate and to enhance the time-resolution of cross correlation. In order to achieve the high positioning accuracy with minimum implementation complexity, parameter optimization is first performed in terms of sampling rate, interpolation factor, and data length for correlation. Using the obtained optimal parameters, we demonstrate a lowcomplexity indoor two-dimensional VLP system using the correlation-based TDOA scheme in a coverage area of 1.2 × 1.2 m 2 with a height of 2 m. The experimental results validate the feasibility of the proposed TDOA scheme, and an average positioning accuracy of 9.2 cm is achieved with a sampling rate of 500 MSa/s, an interpolation factor of 100 and a data length of 250 k samples.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.format.extent10 p.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesIEEE Photonics Journalen_US
dc.rights© 2018 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information.en_US
dc.subjectVisible Light Communication (VLC)en_US
dc.subjectVisible Light Positioning (VLP)en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleDemonstration of a low-complexity indoor visible light positioning system using an enhanced TDOA schemeen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.identifier.doihttp://dx.doi.org/10.1109/JPHOT.2018.2841831
dc.description.versionPublished versionen_US


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