WiFi deVelOpmentS...

• Super Wi-Fi is a term coined by the United States Federal Communications Commission (FCC) to describe a wireless networking proposal which the FCC plans to use for the creation of longer-distance
  
  wireless Internet access. The use of the trademark "Wi-Fi" in the name has been criticized because it is not based on Wi-Fi technology or endorsed by the Wi-Fi Alliance.A trade show has also been called the "Super WiFi Summit" (without hyphen).Various standards such as IEEE 802.22 have been proposed for this concept.
  Instead of using the 2.4 GHz radio frequency of Wi-Fi, the 'Super Wi-Fi' proposal uses the lower-frequency white spaces between television channel frequencies.These lower frequencies allow the signal to travel further and penetrate walls better than the higher frequencies previously used.The FCC's plan was to allow those white space frequencies to be used for free, as happens with shorter-range Wi-Fi and Bluetooth.
  
  
• Li-Fi is a label for wireless-communication systems using light as a carrier instead of traditional radio frequencies, as in Wi-Fi. The term was first used in this context by Harald Haas in his TED Global talk on Visible Light Communication.
  The technology was demonstrated at the ^{2012 Consumer Electronics Show} in ^{Las Vegas} using a pair of ^Casio smartphones to exchange data using light of varying intensity given off from their screens, detectable at a distance of up to ten metres.
  
  
  In October 2011 a number of companies and industry groups formed the ^{Li-Fi Consortium}, to promote high-speed optical wireless systems and to overcome the limited amount of radio-based wireless spectrum available by exploiting a completely different part of the electromagnetic spectrum. The consortium believes it is possible to achieve more than 10 ^Gbps, theoretically allowing a^{high-definition} film to be downloaded in 30 seconds.
  Li-Fi has the advantage of being able to be used in sensitive areas such as in aircraft without causing interference. However, the light waves used cannot penetrate walls.
  Later in 2012, PureVLC, a firm set up to commercialize Li-Fi, will bring out Li-Fi products for firms installing ^LED-lighting systems.
  
  
• WiMAX (Worldwide Interoperability for Microwave Access) is a wireless communications standard designed to provide 30 to 40 megabit-per-second data rates, with the 2011 update providing up to 1 Gbit/s for fixed stations. The name "WiMAX" was created by the WiMAX Forum, which was formed in June 2001 to
  
  promote conformity and interoperability of the standard. The forum describes WiMAX as "a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL".