3375-Gb/s RGB-LED based WDM visible light communication system employing PAM-8 modulation with phase shifted Manchester coding

LED Modulation Characteristics in a Visible-Light Communication System

This paper conducts a research on modulation characteristics of blue light-emitting diodes (LEDs) used in a visible-light communication (VLC) system. Through analysis of the modulation characteristics of LEDs with different emitting sizes, we find that there is a similar linear relationship between LED’s 3dB bandwidth and the operation current density. This experiment also shows that high serie...

Going beyond 4 Gbps data rate by employing RGB laser diodes for visible light communication.

With increasing interest in visible light communication, the laser diode (LD) provides an attractive alternative, with higher efficiency, shorter linewidth and larger bandwidth for high-speed visible light communication (VLC). Previously, more than 3 Gbps data rate was demonstrated using LED. By using LDs and spectral-efficient orthogonal frequency division multiplexing encoding scheme, signifi...

LED-Based Visible Light Communication and Positioning Technology and SoCs

The rapid deployment of high-energy-efficiency, solid-state light emission diode (LED) lighting devices, replacing the conventional luminaires devices, brings unprecedented opportunities for alternative optical wireless communication and navigation applications. This paper reviews the state-of-the-art of LED-based visible light communications (VLC) and positioning (VLP) technologies with a focu...

Active tracking system for visible light communication using a GaN-based micro-LED and NRZ-OOK.

Visible light communication (VLC) holds the promise of a high-speed wireless network for indoor applications and competes with 5G radio frequency (RF) system. Although the breakthrough of gallium nitride (GaN) based micro-light-emitting-diodes (micro-LEDs) increases the -3dB modulation bandwidth exceptionally from tens of MHz to hundreds of MHz, the light collected onto a fast photo receiver dr...

Integrated system of white LED visible-light communication and power-line communication