Paper Presentation on Visible Light Communication BY Mahesh Naga Kumar
VISIBLE LIGHT COMMUNICATION
Jan 15, 2015
NOW A DAYS VISIBLE LIGHT COMMUNICATION IS MORE POPULAR. The visible light communication (VLC) refers to the communication technology which utilizes the visible light source as a signal transmitter, the air as a transmission medium, and the appropriate photodiode as a signal receiving component.Visible light is thus by definition comprised
of visually-perceivable electromagnetic waves.
The visible spectrum covers wave lengths
from 380 nm to 750 nm. The Visible Light Communications Consortium (VLCC) which is mainly comprised of Japanese technology companies was founded in November 2003. It increases the data speed compared to any communication
Position
of visually-perceivable electromagnetic waves.
The visible spectrum covers wave lengths
from 380 nm to 750 nm. The Visible Light Communications Consortium (VLCC) which is mainly comprised of Japanese technology companies was founded in November 2003. It increases the data speed compared to any communication
Position
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Transcript
Paper Presentation on Visible Light Communication BY Mahesh Naga Kumar
CONTENTS
I. What is VLCII. Visible light & SpectrumIII. Indoor VLC scenarioIV. HistoryV. VLC processVI. -TransmitterVII. -ReceiverVIII. VLCCIX. Comparison with RFX. Applications
What is VLC..???
The visible light communication (VLC) refers to the communication technology which utilizes the visible light source as a signal transmitter, the air as a transmission medium, and the appropriate photodiode as a signal receiving component.
Visible Light :-
Visible light is thus by definition comprised of visually-perceivable electromagnetic waves. The visible spectrum covers wave lengths from 380 nm to 750 nm.
Different wavelengths for different LEDS:
Visible Light Spectrum
History of VLC
VISIBLE LIGHT COMMUNICATION PROCESS
Transmitters:-
•LED
•Fluorescent Light
Receiver:-
•Photodiode
LED Technical Evolution
Indoor VLC Scenario
VISIBLE LIGHT COMMUNICATIONS CONSORTIUM(VLCC)
The Visible Light Communications Consortium (VLCC) which is mainly comprised of Japanese technology companies was founded in November 2003. It increases the data speed compared to any communication
VLC CHARACTERISTICS
•Human Safety•High Data Rate•Bandwidth•Security•Visibility•Unlicensed Spectrum
VLC vs RF Communication
•Limited Transmission Power•Regulated Spectrum:•Banned in Sensitive Areas
Applications of VLC
• Position Detection•Intelligent Transport System• Image Sensor Communications• Networking• Audio Applications
CONCLUSION
•LED can be used not only for lighting thehomes but also as means for wireless in-house communication.After few years the VLC is become more popular
ANY QUERIES
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