Mitigation of illumination interference caused by PWM dimming in OFDM based visible light communication systems

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

In this work, we propose a method to mitigate the interference caused by other light sources for OFDM based visible light communication systems. We consider two LED based light sources in the environment and assume only one of them is emitting information. When the second luminary is dimmed with pulse-width-modulation (PWM) method, the pulse transitions of the PWM signal emitted by the second luminary will disrupt the useful OFDM signal. The proposed interference mitigation technique can detect the pulse transition instances and recover the useful signal.

Original languageEnglish
Title of host publicationI4CT 2015 - 2015 2nd International Conference on Computer, Communications, and Control Technology, Art Proceeding
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages489-492
Number of pages4
ISBN (Electronic)9781479979523
DOIs
Publication statusPublished - Aug 24 2015
Event2nd International Conference on Computer, Communications, and Control Technology, I4CT 2015 - Kuching, Sarawak, Malaysia
Duration: Apr 21 2015Apr 23 2015

Publication series

NameI4CT 2015 - 2015 2nd International Conference on Computer, Communications, and Control Technology, Art Proceeding

Other

Other2nd International Conference on Computer, Communications, and Control Technology, I4CT 2015
CountryMalaysia
CityKuching, Sarawak
Period4/21/154/23/15

Keywords

  • DCO-OFDM
  • Interference
  • OFDM
  • PWM dimming
  • Visible light communication

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Networks and Communications
  • Computer Science Applications
  • Software

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  • Cite this

    Kizilirmak, R. C., & Kho, Y. H. (2015). Mitigation of illumination interference caused by PWM dimming in OFDM based visible light communication systems. In I4CT 2015 - 2015 2nd International Conference on Computer, Communications, and Control Technology, Art Proceeding (pp. 489-492). [7219626] (I4CT 2015 - 2015 2nd International Conference on Computer, Communications, and Control Technology, Art Proceeding). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/I4CT.2015.7219626