{"id":5451,"date":"2015-09-03T14:19:16","date_gmt":"2015-09-03T12:19:16","guid":{"rendered":"https:\/\/www.esferize.com\/from-wifi-to-lifi-the-mobile-communications-revolution\/"},"modified":"2021-10-01T13:32:11","modified_gmt":"2021-10-01T11:32:11","slug":"del-wifi-al-lifi-la-revolucion-de-las-comunicaciones-moviles","status":"publish","type":"post","link":"https:\/\/www.esferize.com\/en\/del-wifi-al-lifi-la-revolucion-de-las-comunicaciones-moviles\/","title":{"rendered":"From Wi-Fi to LiFi: The connection revolution"},"content":{"rendered":"

If there is a sector in a real and constant evolution, it is the IT sector for many and varied reasons. But, without doubt, being able to connect to the Internet through a beam of light as simple as an LED is innovative<\/strong>. Moving from Wi-Fi to LiFi would undoubtedly become the connection revolution.<\/p>\n

Although the transmission of information through light has been studied for 50 years, the first to use the term LiFi was the University of Edinburgh<\/a> professor Harald Haas. The academic demonstrated the first LiFi device in 2011, generating great expectation around its future applications; just 4 years later the company Sisoft is already commercialising this system in Mexico.<\/p>\n

But what is Li-Fi?<\/strong><\/h3>\n

?
\nThe system uses the light spectrum of an LED spotlight to transmit data in the binary language<\/strong> of computers by switching this light source on and off millions of times per second. The receiving device will have a light detector that will pick up the flickering and translate it into information<\/strong>.<\/p>\n

LiFi can handle up to 10,000 times more data than current Wi-Fi. It would be able to transmit the data volume corresponding to 13.3 years of HD video in one second.<\/p>\n

Advantages<\/strong><\/h3>\n
    \n
  • Transmits high-speed data at the same time as illuminating<\/strong>.<\/li>\n
  • It does not saturate the part of the spectrum<\/strong> currently used by other systems such as Wi-Fi in its different versions, as it uses visible light.<\/li>\n
  • The information arrives via the beam of light from the LEDs, so we can either create a scattered beam that provides wide coverage or a very fine beam that illuminates small regions and transmits data in a more directional manner. This allows greater control over who the data is reaching<\/strong> at any given time and enables more secure short-range networks.<\/li>\n
  • It can also be used to transmit large volumes of data between computers or to multimedia devices<\/strong>. For example, we can send a video from a mobile phone to a TV quickly or copy it to a network hard drive just by pointing the phone at the TV or hard drive for a few seconds, as we now do with the remote control to change channels (which incidentally also uses a variant of “LiFi” based on infrared).<\/li>\n<\/ul>\n

    Disadvantages<\/strong><\/h3>\n
      \n
    • Reduced range<\/strong>, which is currently only a few metres (about 10 metres).<\/li>\n
    • Coverage is cut off when an object gets in the beam of light<\/strong>. It is enough to move your hand across the beam or move the handset out of the beam to cut off transmission.<\/li>\n<\/ul>\n

      \u00a0<\/p>\n