Hi, I'm Sergio Daneri, student U.N.Q. (National University of Quilmes)
Please invest a few minutes of your time to fill out the questionnaire.
Li-Fi is a type of Internet connection that uses technology that is characterized by transmitting information via the LED light could reach 10Gbps speed.
The Li-Fi unlike Wi-Fi uses fewer elements for the transmission and reception of the signal, which is an advantage because its installation is simpler and more efficient.
Transmission elements
- Lamps LEDs that turn on and off so fast that the change of light is not perceptible by the human eye, which is transformed into light waves are those used for the issuance of datos33 are used.
- Beside the bulb a modulator which is responsible for varying the signal wave is installed, to be sent
Receiving elements
- To capture signal photoreceptors are used these elements are able to capture the variation in the intensity of light, and convert them into electrical current
Some of the advantages we can cite are:
· The data transmission rate is very high can range from 15 Mb / s to 20 Gb / s
· There is no interference with radio frequency elements as its means of transmission is light, so it can be used in places where Wi-Fi does not reach
· Does not require circuits or antennas or receivers complex, as Li-Fi uses modulation methods like infrared
· At the same time a place lights can be Li-Fi signal, which would save energy
· You can allow connections underwater or on airplanes, and other places where now can not have señal34
There are still some drawbacks among which we highlight
· Visible light waves do not pass objects as if they do radio waves, so yes there is interference signal is lost
· The scope of the light beam of the LEDs is not very wide only reaches 5 to 10 meters
Another but this way of transmicion, is that it would not replace the current WI-FI, as only official when the light is on. The LI-FI would complement the current WI-FI
NOTE THAT FOR USE OF THIS TECHNOLOGY, WILL BE NECESSARY EQUIPMENT (computer, phone, cars, etc.) EQUIPPED WITH CELL Photoelectric TO ATTRACT THE LIGHT OF AND LED lamps to transmit information. THE SAME ESTRE have a value of 800 USD to 1500 USD.