Experimental investigation of modulation method for visible-light communications

Hidemitsu Sugiyama, Shinichiro Haruyama, Masao Nakagawa

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

We have developed a new modulation method - inverted pulse position modulation (I-PPM) and subcarrier inverted pulse position modulation (SC-I-PPM) - that provides superior LED brightness for visible-light communications. In addition, the new modulation method SC-I-PPM is not affected by background light. In this paper, we investigated several modulation methods in details and set up a standard with which to evaluate the performance of modulation methods. Several modulation methods are subjected to experiments to clarify their performance. Experiments show that subcarrier modulation suppresses the influence of background light and that our new modulation best maintains LED brightest.

Original languageEnglish
Pages (from-to)3393-3400
Number of pages8
JournalIEICE Transactions on Communications
VolumeE89-B
Issue number12
DOIs
Publication statusPublished - 2006 Dec

Fingerprint

Modulation
Pulse position modulation
Light emitting diodes
Visible light communication
Luminance
Experiments

Keywords

  • LED
  • Modulation
  • Optical wireless communication
  • PPM
  • Visible-light communication

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

Experimental investigation of modulation method for visible-light communications. / Sugiyama, Hidemitsu; Haruyama, Shinichiro; Nakagawa, Masao.

In: IEICE Transactions on Communications, Vol. E89-B, No. 12, 12.2006, p. 3393-3400.

Research output: Contribution to journalArticle

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