LI-FI (LIGHT FIDELITY) – THE CHANGING SCENARIO OF WIRELESS COMMUNICATION

Abstract

As per the growing demands of wireless communication there is enormous new technologies participating to make sophisticated environment for an end user. In a recent survey of International Telecommunication Union (ITU) it was found that the number of mobile phone subscribers has exceeds seven billion subscriptions at the end of 2014 using more than 10 to 15 internet utility apps which is more than the entire population of planet. To serve this increasing number and size of wireless communication system the German physicist – Harald Haas proposed a “Li–Fi technology” which he calls “Data through illumination” or “D-Light”. LiFi is a new approach of VLC which has much more similar working of a OFC communication system providing data rates of ten’s of Gbps. In this technology data is interpreted by the LED’s ON/OFF concepts. This paper gives a brief focus on Li-Fi technology, it’s working principal, some misconceptions about Li-Fi and related researches like Nobel Prize winning Blue Light emitting diode, Optoelectronic integrated circuit (OEIC) receiver, etc.