Heuristic, machine learning approach to 8-CSK decision regions in RGB-LED visible light communication

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...

Implementation of Downlink Visible Light Communication using LED and Photodiode

In this paper we present the initial design, implementation and result of a small-scale prototype of Visible Light Communication using simple LED and a photodiode. Data is transmitted through visible light by sending data in a binary format as on and off that varies in frequency faster than the human eye can follow. The data to be transmitted is encoded and sent. The data is decoded back at the...

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...

Real-time white-light phosphor-LED visible light communication (VLC) with compact size.

In this demonstration, we first demonstrate a real-time phosphor-LED visible light communication (VLC) system with 37 Mbit/s total throughput under a 1.5 m free space transmission length. The transmitter and receiver modules are compact size. Utilizing our proposed pre-equalization technology, the ~1 MHz bandwidth of phosphor LED could be extended to ~12 MHz without using blue filter. Thus, the...

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