Investigation of no analogue-equalization and blue filter for 185 Mbps phosphor-LED wireless communication

C. H. Yeh*, Chi-Wai Chow, Y. L. Liu, H. Y. Chen, Y. Liu, J. C. Hsu

*Corresponding author for this work

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

In this demonstration, we first propose an optimal analogue front end circuit without employing pre-equalization (series peaking) to increase the modulation bandwidth of phosphor-LED in visible light communication (VLC) transmission. And there is no blue filter and post-equalization in the client side. Here, only using optimal adjustment of resistance (R), inductance (L), and capacitance (C) in bias-tee to compensate the impedance matching of phosphor-LED, nearly 32 MHz modulation bandwidth can be accomplished. Therefore, utilizing orthogonal frequency division multiplexed modulation with bit-loading algorithm in VLC system, 185 Mbps data rate can be achieved under a transmission distance of 80 cm.

Original languageEnglish
Pages (from-to)1991-1997
Number of pages7
JournalOptical and Quantum Electronics
Volume47
Issue number7
DOIs
StatePublished - 1 Jul 2015

Keywords

  • OFDM-QAM
  • Phosphor-LED
  • Visible light communication (VLC)

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