Li Fi (Light Fidelity) Chaitanya Sontineni Satya Prakash Saladi Sandeep Nakarakommula.
Li fi(Light Fidelity )
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Transcript of Li fi(Light Fidelity )
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LI-FI TECHNOLOGY
PRESENTED BY D.B.N.R.S.SESHA SAI
(ESWAR) Sk.Baji
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WHAT IS LI – FI ?
• LI-FI is transmission of data through illumination, sending data through a LED light bulb that varies in intensity faster than human eye can follow.
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INTRODUCTION TO LI-FI
• THE PURPOSE BEHIND COMING UP WITH THE IDEA OF LI-FI IS TO ALLOW THE EXCHANGE OF DATA BETWEEN SEVERAL DEVICES AT HIGHER SPEED.
• LI-FI IS A TERM SOME HAVE USED TO LABEL THE FAST AND CHEAP WIRELESS COMMUNICATION SYSTEM, WHICH IS THE OPTICAL VERSION OF WI-FI.
• LI-FI IS BASED ON VISIBLE LIGHT COMMUNICATION (VLC) TECHNOLOGY.
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WHY ONLY VLC?
Radio Waves
Infrared Rays
Visible Rays
Ultraviolet Rays X- Rays
Gama Rays
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PRESENT SCENARIO
1.4 Million 5 Billion
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WORKING PROCESS
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TECHNOLOGIES USED IN LI-FI:
SIM-OFDM and Spatial modulation
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ADVANTAGES
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DISADVANTAGE
•PRESENCE OF LIGHT IS ESSENTIAL
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DIFFERENCE BETWEEN THE TECHNOLOGIES
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1. HOSPITALS(IN FEW MEDICAL INSTRUMENTS)
APPLICATIONS
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2. IN AIRCRAFT CABINS
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3. IN RF RESTRICTED ENVIRONMENTS
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4. IN VEHICLES AND TRAFFIC LIGHTS, REDUCING ACCIDENTS AND TRAFFIC
CONGESTION
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5. STREET LAMPS(AS FREE ACCESS POINTS)
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6. UNDER WATER
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CONCUSSION
The possibilities are numerous and can be explored further. If this technology can be put into practical use, every bulb can be used something like a Wi-Fi hotspot to transmit wireless data and we will proceed toward the cleaner, greener, safer and brighter future.
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ANY QUERIES……..
THANK YOU