What Is Wi-Fi?
WiFi technology providing network connectivity by the using of radio waves.
WiFi Stand For?
You will be amazed to hear that many
people don't surely understand that WiFi
is an abbreviated word. Even folks that do don't always know what WiFi stands
for. There are many theories about it. but the main definition is wireless
fidelity.
Light fidelity or Li-Fi
is a Visible Light Communications (VLC) system that work with wireless
communications for travelling information at very high speeds
German physicist Harald
Haas Invented LI-FI during a TED talk
When applied a constant current
to LED (light-emitting-diode) light bulb, This means that
it accommodates a photo-detector to receive light signals and a signal
processing element to convert the data into 'stream-able' content. If the current is varied dimmed, the output intensity of the light dims up and down. That’s Why
LED bulbs are semiconductor devices, the current, and hence the optical output,
can be modulated at extremely high speeds which can be detected by a photo
detector device and converting back to
electrical current. The intensity modulation is imperceptible to the human eye,
and thus communication is just as seamless as RF [radio frequency technology].
Using this technique, high-speed information can be transmitted from an LED light bulb.
How Does WiFi Works ?
A Wi-Fi network makes use of radio waves to
transmit Information or Data across or other network. The information will be
sent to the Internet via a wired Ethernet connection.
What Does Wi-Fi
Frequencies used ?
A Wi-Fi network makes use of radio waves to
transmit Information or Data across or other network. The information will be
sent to the Internet via a wired Ethernet connection.
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