An adaptation scheme to ambient light interference for Visible Light Communication link

2016 ◽  
pp. 1105-1110
Author(s):  
Cheng-Han Li ◽  
Jenn-Kaie Lain
Keyword(s):  
Visible Light ◽  
Visible Light Communication ◽  
Communication Link ◽  
Ambient Light ◽  
Light Interference ◽  
Adaptation Scheme

An approach to ensure joint illumination & communication performance of a forward error corrected indoor visible light communication (VLC) system in presence of ambient light interference

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Sourish Chatterjee ◽  
Biswanath Roy
Keyword(s):  
Visible Light ◽  
Bit Error Rate ◽  
Error Rate ◽  
Light Emitting Diode ◽  
Visible Light Communication ◽  
Ambient Light ◽  
Ambient Illumination ◽  
Communication Performance ◽  
Light Interference ◽  
Forward Error

AbstractIn recent time of looming radio frequency (RF) spectrum crisis, visible light communication using lighting infrastructure emerged as a potential alternative at an indoor environment. This paper addresses the setback associated with ambient light interference in an indoor Visible Light Communication (VLC) system to ensure joint communication and illumination performance inside an office room. A novel VLC architecture with suitable white light emitting diode (WLED) luminaire arrangement is presented to minimize the dispersion of signal to interference plus noise ratio (SINR) across the room. Luminaires are categorized in two groups viz. data transmitting illuminants and illuminants for lighting purpose. The first group is dedicated to transmit data as well as serves the purpose of illumination. The other set creates only ambient illumination to achieve quality lighting attributes. The proposed forward error corrected receiver configuration discards the ambient light noise originated by the illuminants that serve the ambient illumination. Tail biting convolutional encoder and viterbi decoder are used at the encoding section of the transmitter and decoding section of the receiver respectively to improve bit error rate. Results obtained through MATLAB simulation shows better average bit error rate (BER) in the order of 10−8 measured at uniformly distributed 25 grid points over the working plane. At the same time achieved average horizontal illuminance with good uniformity comply with ISO recommendation.

scholarly journals 4-Gbit/s visible light communication link based on 16-QAM OFDM transmission over remote phosphor-film converted white light by using blue laser diode

2015 ◽  
Vol 23 (26) ◽  
pp. 33656 ◽  
Author(s):  
José Ramón Durán Retamal ◽  
Hassan Makine Oubei ◽  
Bilal Janjua ◽  
Yu-Chieh Chi ◽  
Huai-Yung Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Laser Diode ◽  
White Light ◽  
Visible Light Communication ◽  
Blue Laser ◽  
Communication Link ◽  
Blue Laser Diode ◽  
Remote Phosphor ◽  
Phosphor Film

Modulation and Demodulation Techniques in Indoor Visible Light Communication System

2014 ◽  
Vol 685 ◽  
pp. 306-309
Author(s):  
Hao Wang ◽  
Ze Yu Han
Keyword(s):  
Visible Light ◽  
Communication Technology ◽  
Communication System ◽  
High Speed ◽  
Data Transfer ◽  
Visible Light Communication ◽  
Communication Link ◽  
High Data ◽  
Modulation And Demodulation ◽  
The Impact

Visible light communication technology is a emerging wireless and optical communication technology developed after invention and application of white LED.In this paper, we have a research based on indoor visible light communication system of lighting white LED,discuss of the visible light communication channel characteristics,detailedly analysis of the indoor visible light communication link. This paper focuses on the modulation and demodulation method applied to visible light communication. In the past visible light communication is mainly used off keying modulation,however, the data transfer speed is limited due to the influence of ISI .This paper presents a solution based on OFDM modulation and demodulation, to reduce the impact brought from inter-symbol string under high data transfer speed.Based on data analysis and computer simulation,the program presented in this paper can be used as indoor lighting and high-speed data transmission.Finally, give scheme to achieve visible light communication modulation and demodulation,provide a theoretical basis for further experiments.

Receiver angle control in an infrastructure-to-car visible light communication link

2016 ◽  
Author(s):  
Jiseong Jeong ◽  
Chung Ghiu Lee ◽  
Inkyu Moon ◽  
Moonsoo Kang ◽  
Seokjoo Shin ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Communication ◽  
Communication Link

scholarly journals Ambient Light Rejection Using a Novel Average Voltage Tracking in Visible Light Communication System

2017 ◽  
Vol 7 (7) ◽  
pp. 670 ◽  
Author(s):  
Quan Pham ◽  
Vega Rachim ◽  
Jinyoung An ◽  
Wan-Young Chung
Keyword(s):  
Visible Light ◽  
Communication System ◽  
Visible Light Communication ◽  
Ambient Light
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