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Bhargavjoshi.tech
Presentation By
Mr. Bhargav Joshi
91Projects.xyz
LIFI-
LIGHT FIDELITY
Bhargavjoshi.tech
CONTENTS OF PPT
• What is Li-Fi?
• Why is it required?
• LiFi over WiFi
• Working
• Disadvantages Of LiFi
• Applications Of LiFi
• Ideas for more applications of this
technology
Bhargavjoshi.tech
• Li-fi, As Coined By Prof. Harald Haas
• During His TED Global Talk, Is Bidirectional,
High Speed And Fully Networked Wireless
Communications Similar To Wi-fi. Li-fi Is A
Subset Of
• Optical Wireless Communication
• (OWC) And Can Be A Complement To
• RF Communication (Wi-fi Or Cellular
Or A Replacement In
• Contexts Of Data Broadcasting.
WHAT IS LI-FI?
Bhargavjoshi.tech
Existing wireless technology - Why do we
need an alternate technology?
• CAPACITY
• EFFICIENCY
• AVAILABILITY
• SECURITY
Bhargavjoshi.tech
VISIBLE SPECTRUM
Bhargavjoshi.tech
LIFI OVER WIFI
Bhargavjoshi.tech
WORKING
Bhargavjoshi.tech
DISADVANTAGES
Nothing in this world is perfect and
so does LIFI.
• These signals cannot penetrate walls.
So the person needs wired bulb in that
room also.
• Only works if there is direct line of
sight between source and receiver.
• Used for broadcast and it is difficult to
uplink.
Bhargavjoshi.tech
Advantages of LI-FI
• Li-Fi can solve problems related to the
insufficiency of radio frequency bandwidth
because this technology uses Visible light spectrum
that has still not been greatly utilized.
• High data transmission rates of up to 10Gbps can
be achieved.
• Since light cannot penetrate walls, it provides
privacy and security that Wi-Fi cannot.
• Li-Fi has low implementation and maintenance
costs.
Bhargavjoshi.tech
APPLICATIONS
• Underwater communications: Since radio
waves cannot be used under water because
these waves are strongly absorbed by sea water
within feet of their transmission and this renders
it unusable underwater but LIFI is suitable for
underwater communication
• Internet anywhere: street lamps, light of
vehicles can be used to access internet
anywhere in footpaths, roads, malls, anywhere
where light source is available.
• Safety and management: it can be used to
update traffic information at almost every instant
and it will be easy for traffic police to deal with
traffic and catch the one who breaks the rule.
Bhargavjoshi.tech
• Finding the location of a person :
LiFi uses visible light and this
property can be exploited in finding the
location of people. Suppose if a child is
misplaced and he/she is wearing an earing
which is made of Led’s. this led can
constantly communicate with the visible
light available and reveal the location of the
child.
• Navigation System :
since visible light is present
everywhere, we can create internal
navigation systems for the bigger areas to
create automated machinery/ automatic
navigation for the visitors.
IDEAS FOR MORE APPLICATIONS :
Bhargavjoshi.tech
Conclusion
• The possibilities are numerous
and can be explored further.
• If his 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.
Bhargavjoshi.tech
REFERENCES
• http://www.ijstr.org
• https://www.youtube.com
• www.wikipedia.com
• www.google.com
• The.5za9.wordpress.com
Bhargavjoshi.tech
Bhargavjoshi.tech

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LIFI : Light Fidelity ~ The Future of Internet By Mr. Bhargav Joshi

  • 2. Presentation By Mr. Bhargav Joshi 91Projects.xyz LIFI- LIGHT FIDELITY Bhargavjoshi.tech
  • 3. CONTENTS OF PPT • What is Li-Fi? • Why is it required? • LiFi over WiFi • Working • Disadvantages Of LiFi • Applications Of LiFi • Ideas for more applications of this technology Bhargavjoshi.tech
  • 4. • Li-fi, As Coined By Prof. Harald Haas • During His TED Global Talk, Is Bidirectional, High Speed And Fully Networked Wireless Communications Similar To Wi-fi. Li-fi Is A Subset Of • Optical Wireless Communication • (OWC) And Can Be A Complement To • RF Communication (Wi-fi Or Cellular Or A Replacement In • Contexts Of Data Broadcasting. WHAT IS LI-FI? Bhargavjoshi.tech
  • 5. Existing wireless technology - Why do we need an alternate technology? • CAPACITY • EFFICIENCY • AVAILABILITY • SECURITY Bhargavjoshi.tech
  • 9. DISADVANTAGES Nothing in this world is perfect and so does LIFI. • These signals cannot penetrate walls. So the person needs wired bulb in that room also. • Only works if there is direct line of sight between source and receiver. • Used for broadcast and it is difficult to uplink. Bhargavjoshi.tech
  • 10. Advantages of LI-FI • Li-Fi can solve problems related to the insufficiency of radio frequency bandwidth because this technology uses Visible light spectrum that has still not been greatly utilized. • High data transmission rates of up to 10Gbps can be achieved. • Since light cannot penetrate walls, it provides privacy and security that Wi-Fi cannot. • Li-Fi has low implementation and maintenance costs. Bhargavjoshi.tech
  • 11. APPLICATIONS • Underwater communications: Since radio waves cannot be used under water because these waves are strongly absorbed by sea water within feet of their transmission and this renders it unusable underwater but LIFI is suitable for underwater communication • Internet anywhere: street lamps, light of vehicles can be used to access internet anywhere in footpaths, roads, malls, anywhere where light source is available. • Safety and management: it can be used to update traffic information at almost every instant and it will be easy for traffic police to deal with traffic and catch the one who breaks the rule. Bhargavjoshi.tech
  • 12. • Finding the location of a person : LiFi uses visible light and this property can be exploited in finding the location of people. Suppose if a child is misplaced and he/she is wearing an earing which is made of Led’s. this led can constantly communicate with the visible light available and reveal the location of the child. • Navigation System : since visible light is present everywhere, we can create internal navigation systems for the bigger areas to create automated machinery/ automatic navigation for the visitors. IDEAS FOR MORE APPLICATIONS : Bhargavjoshi.tech
  • 13. Conclusion • The possibilities are numerous and can be explored further. • If his 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. Bhargavjoshi.tech
  • 14. REFERENCES • http://www.ijstr.org • https://www.youtube.com • www.wikipedia.com • www.google.com • The.5za9.wordpress.com Bhargavjoshi.tech