Li-Fi is an emerging wireless technology that uses visible light communication (VLC) to transmit data using light from LED bulbs. Li-Fi offers several advantages over traditional Wi-Fi such as significantly higher speeds up to 100 times faster than Wi-Fi, more secure transmission since light cannot pass through walls, and it avoids radio interference issues. However, Li-Fi also faces limitations since it requires line of sight transmission and cannot work outdoors or in direct sunlight like Wi-Fi can. Overall, Li-Fi shows promise as a supplement to Wi-Fi but more development is still needed to address its limitations.

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Li-Fi technology isn’t just another shiny new object.
Its continuing development is likely to change the way
we live, work and communicate using the internet.
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Sources:
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Discover more
Li-Fi applications
Transportation
Use LED lights in vehicles, street signs
and traffic signals to enable:
• Vehicle-to-vehicle communication
• Vehicle-to-roadside communication
• Smart cities
Underwater communication
Enable underwater communication:
• Diver to diver
• Diver to mini-subs
• Diver to drilling rig
Location-based services
Transmit:
• Advertising
• Catalog information
• Special offers
Content
consumption
Quickly access:
• Video
• Audio
• Live streams
Secure
environments
Provide safe
internet for:
• Hospitals
• Hotels
• Hot spots
Mobile connectivity
Interconnect:
• Laptops
• Smartphones
• Tablets
• Toys
Smart lighting
Use any light as a
Li-Fi hotspot.
Use Li-Fi sensors to:
• Control data
• Adjust lighting
Indoor navigation
Direct travelers
through:
• Hotel corridors
• Reception halls
• Entire facilities
Hazardous
environments
Li-Fi does not cause
electromagnetic
interference so is safe
for use in:
• Mines
• Petrochemical
plants
Glowing possibilities
Applications for Li-Fi technology
User recognition
Identify:
• Users
• Access privileges
Read more about
Li-Fi drawbacks
No (or limited)
outdoor use
Li-Fi does not
work in direct
sunlight, so it
cannot replace
public Wi-Fi
Explore the
benefits of Li-Fi
Efficient
If the light is on, data
transmits—FREE
Energy consumption
The benefits of faster wireless
communication may not outweigh the
costs of constantly keeping LED lights on
Blocked by walls
For Li-Fi to work, LED light bulbs
must be present and on
Security concerns
The minimum distance for signal
reception is unclear, so it may be
possible for a telephoto lens or
optical sensor to intercept data
Maximum speed is unknown
Li-Fi speeds were tested in controlled
environments where light pollution
and other variables weren’t present
Secure
Light cannot pass through
walls (Wi-Fi can)
Uses existing infrastructure
14 billion light bulbs in the
world = 14 billion
opportunities to transmit data
Boosts internet capacity
Li-Fi’s visible light spectrum
is 10,000 times greater than
Wi-Fi’s radio wave spectrum
Look
on the
bright side
Benefits of Li-Fi
Lights out
Drawbacks of Li-Fi
Learn more
about Li-Fi
LED light bulbs
transmit data
Energy neutral
Transmits data
at 1 gigabit
per second
Li-Fi
light fidelity
Wi-Fi
wireless fidelity
Radio waves
transmit data
Energy biased
Transmits data
at 1.25 megabytes
per second
Wi-Fi versus Li-Fi
Shedding some light on the topic
Li-Fi is
100x faster
than Wi-Fi
with theoretical top
speeds of 224
gigabits per
second
Li-Fi
TM
technology
Transmitting data with the speed of light