Indoor positioning and intuitive advertising using visible light communication

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

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

1 Citation (Scopus)


This paper researches the applicability of an intuitive advertising system for large indoor environments using Visible Light Communication (VLC). This VLC based positioning system includes the use of the visible light signal to light the space and to transmit the information for travelers' positioning and of advertising campaigns in the surroundings. White RGB-LEDs, whose original function is providing illumination, are used as transmitters due to the ability of each individual chip to switch quickly enough to transfer data. This functionality is used for communication where the multiplexed data can be encoded in the emitting light. The light signals emitted by the LEDs positioned in the area of the advertising campaign are interpreted directly by the customers' receivers. A SiC optical sensor with light filtering and demultiplexing properties receives the modulated signals containing the ID and the geographical position of the LED and other information, demultiplexes and decodes the data and locates the mobile device in the environment. Different layouts are analysed: square and hexagonal meshes are tested, and a 2D localization design, demonstrated by a prototype implementation, is presented. The key differences between both topologies are discussed. For both, the transmitted information, indoor position and motion direction of the customer are determined. The results showed that the LED-aided VLC navigation system enables to determine the position of a mobile target inside the network, to infer the travel direction as a function of time and to interact with information received.

Original languageEnglish
Title of host publicationPhysics and Simulation of Optoelectronic Devices XXVII
EditorsMarek Osinski, Bernd Witzigmann, Yasuhiko Arakawa
PublisherSPIE-International Society for Optical Engineering
ISBN (Electronic)9781510624665
Publication statusPublished - 1 Jan 2019
EventPhysics and Simulation of Optoelectronic Devices XXVII 2019 - San Francisco, United States
Duration: 5 Feb 20197 Feb 2019

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


ConferencePhysics and Simulation of Optoelectronic Devices XXVII 2019
Country/TerritoryUnited States
CitySan Francisco


  • Advertising
  • Indoor positioning
  • Large indoor environments
  • Multiplexing/demultiplexing techniques.
  • Optical sensors
  • SiC technology
  • Transmitter/receiver
  • Visible Light Communication


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