Adaptive visible light communication LED receiver

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

5 Citations (Scopus)

Abstract

We consider a visible light communication (VLC) system with light emitting diodes (LEDs), wherein LEDs are used for information transmission as well as reception while providing illumination. At the transmitter, a combination of a pulse width modulation (PWM) signal and a redundant run-length limited encoded on-off keying (OOK) signal is used for data transmission. The LED receiver uses OOK and the OFF periods therein for VLC reception. The range of such a system is however affected by ambient light changes and device portability. To address this problem, we propose a two-step decoder with edge detection followed by K-means clustering and adaptive threshold detection. We show that the proposed system achieves about 33% higher range in comparison to a non-adaptive VLC system.

Original languageEnglish
Title of host publicationIEEE SENSORS 2017 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers
Pages1-3
Number of pages3
ISBN (Electronic)9781509010127
DOIs
Publication statusPublished - 21 Dec 2017
Event16th IEEE SENSORS Conference, ICSENS 2017 - Glasgow, United Kingdom
Duration: 30 Oct 20171 Nov 2017

Conference

Conference16th IEEE SENSORS Conference, ICSENS 2017
CountryUnited Kingdom
CityGlasgow
Period30/10/171/11/17

Keywords

  • LED sensing
  • VLC receivers

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