Design of a transmission system for indoors navigation based on VLC

P. Louro, F. Rodrigues, J. Costa, Maria Manuela de Almeida Carvalho Vieira, Manuela Augusto Vieira

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


In this research we present a system based on Visible Light Communication (VLC) with the dual purpose of indoor positioning and data transmission. We propose a system based on RGB white LEDs and a pinpin phototetector based on a-SiC:H/a-Si:H to detect the optical signals transmitted y the modulated emitters of the LEDs. A unit navigation cell is defined and characterized by a unique identifier, and the concept is enlarged to adjacent cells. Within each cell, each spatial region is assigned by the optical pattern of the correspondent emitters. Besides, the positioning and navigation functionality, additional data transmission is also demonstrated using four different channels in each navigation cell. A specific codification scheme and decoding algorithm are proposed and discussed. Error control methodology is also presented to enhance the decoding process.

Original languageEnglish
Title of host publicationOptical Sensing and Detection V
EditorsF. Berghmans, A. G. Mignani
PublisherSPIE-International Society for Optical Engineering
ISBN (Electronic)9781510618862
Publication statusPublished - 1 Jan 2018
EventOptical Sensing and Detection V 2018 - Strasbourg, France
Duration: 23 Apr 201826 Apr 2018

Publication series

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


ConferenceOptical Sensing and Detection V 2018


  • amorphous SiC technology
  • error control
  • optoelectronics
  • spectral sensitivity
  • VLC indoor positioning
  • white LEDs


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