1 of 17

Slide Notes

DownloadGo Live

Li-Fi

Published on Oct 05, 2016

No Description

View Outline

MORE DECKS TO EXPLORE

PRESENTATION OUTLINE

1.

Li-Fi

What is it and why should I care?
2.

Untitled Slide

How does it work?

Basically, Li-Fi takes an LED lightbulb and flickers it millions of times per second (faster than the human eye can see) encoding data in the flickers to our mobile devices so that we can access the world wide web. It's kinda like how old ships would use signal lamps to flash morse code to communicate with other ships.
3.

Professor Harold Haas

Professor Harald Haas, from the University of Edinburgh, Scotland, came up with the idea of Li-Fi and demonstrated it for the first time at a TED Talk in 2011. Professor Haas argues that the radio waves we currently use to transmit data have a limited range, bandwidth and spectrum.
4.

Untitled Slide

He has compared it to the visible light spectrum and has found that there is 10,000 times more of the spectrum to use for transmitting data than the radio wave spectrum.
5.

Untitled Slide

Researchers at the University of Oxford have achieved bi-directional speeds of 224Gbs. That's almost 100 times faster than the average Wi-Fi speed.
6.

Untitled Slide

Applications are endless
7.

Untitled Slide

Home
8.

Untitled Slide

Office
9.

Untitled Slide

Businesses
10.

Untitled Slide

Street lights

over a billion street lights in the world
11.

Untitled Slide

Traffic Lights and Cars
12.

Untitled Slide

Airplanes
13.

Untitled Slide

Charge your phones with Li-Fi
14.

Untitled Slide

Bedtime and lights need to be turned off
15.

Advantages

  • Speeds of up to 224Gbs
  • Cost Effective
  • More Secure
  • Bandwidth is 10k times that of Wi-Fi
  • Would not interfere with existing radio waves and radar signals
16.

Disadvantages

  • Does not pass through walls
  • Limited use when lights are off
  • Interference from the sun
17.

Untitled Slide

Friend of Haiku Deck