Visible light communication technology for fine-grained indoor localization

M. A. Vieira, M. A. Vieira, P. Louro, A. Fantoni, P. Vieira

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)


This paper focuses on designing and analysing a visible light based communication and positioning system. The indoor positioning system uses trichromatic white Light Emitting Diodes (LEDs), both for illumination purposes and as transmitters, and an optical processor, based on a-SiC:H technology, as mobile receiver. On-Off Keying (OOK) modulation scheme is used, proving a good trade-off between system performance and implementation complexity. In the following, the relationship between the transmitted data and the received output levels is decoded. LED bulbs work as transmitters, sending information together with different identifiers, IDs, related to their physical locations. Square and diamond topologies for the unit cell are analyzed, and a 2D localization design, demonstrated by a prototype implementation, is presented. Fine-grained indoor localization is tested. The received signal is used in coded multiplexing techniques for supporting communications and navigation concomitantly on the same channel. The location and motion information is found by mapping the position and estimating the location areas.

Original languageEnglish
Title of host publicationOptical Interconnects XVIII
EditorsHenning Schroder, Ray T. Chen
PublisherSPIE-International Society for Optical Engineering
ISBN (Electronic)9781510615618
Publication statusPublished - 2018
EventOptical Interconnects XVIII 2018 - San Francisco, United States
Duration: 29 Jan 201831 Jan 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE-International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceOptical Interconnects XVIII 2018
Country/TerritoryUnited States
CitySan Francisco


  • A-SiC: H technology
  • Demultiplexer
  • Indoor positioning
  • Lighting topologies
  • Optical sensor
  • Receiver
  • Transmitter
  • Visible Light Communication
  • WDM.


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