Visible light communication system technology review: Devices, architectures, and applications

Tai Cheng Yu, Wei Ta Huang, Wei Bin Lee, Chi Wai Chow, Shu Wei Chang*, Hao Chung Kuo

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

38 Scopus citations

Abstract

Visible light communication (VLC) is an advanced, highly developed optical wireless communication (OWC) technology that can simultaneously provide lighting and high-speed wireless data transmission. A VLC system has several key advantages: ultra-high data rate, secure communication channels, and a lack of interference from electromagnetic (EM) waves, which enable a wide range of applications. Light-emitting diodes (LEDs) have been considered the optimal choice for VLC systems since they can provide excellent illumination performance. However, the quantum confinement Stark effect (QCSE), crystal orientation, carrier lifetime, and recombination factor will influence the modulation bandwidth, and the transmission performance is severely limited. To solve the insufficient modulation bandwidth, micro-LEDs (µ-LEDs) and laser diodes (LDs) are considered as new ideal light sources. Additionally, the development of modulation technology has dramatically increased the transmission capacity of the system. The performance of the VLC system is briefly discussed in this review article, as well as some of its prospective applications in the realms of the industrial Internet of Things (IoT), vehicle communications, and underwater wireless network applications.

Original languageEnglish
Article number1098
JournalCrystals
Volume11
Issue number9
DOIs
StatePublished - Sep 2021

Keywords

  • Laser diode
  • Light-emitting diode
  • Modulation scheme
  • Optical receiver
  • Quantum communication
  • Visible light communication

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