What is Li-Fi Technology?

July 5, 2024

Telecom startup Velmenni recently received a grant from the Ministry of Defence (MoD) under the Innovations for Defence Excellence (iDEX) initiative for its innovative Li-Fi (Light Fidelity) technology.

About Li-Fi Technology:

  • Li-Fi, which stands for Light Fidelity, is a mobile wireless communications technology that uses light rather than radio frequencies to transmit data.
  • The father of this technology is Professor Harald Hass.
  • Li-Fi uses special LED (light-emitting diode) bulbs for the transmission of data.
  • It is a high-speed, bidirectional, and fully networked wireless communication of data using light.
  • Li-Fi technology only needs a light source with a chip to transmit an internet signal through light waves.
  • Li-Fi devices deliver data through visible, infrared, or ultraviolet light. 
  • LiFi provides internet users with wireless connections that are over 100 times faster than Wi-Fi routers because light has a larger bandwidth than radio waves
  • It has delivery speeds of up to 224 GB per second.
  • LiFi can be used in a variety of applications, such as internet access, phone-2-phone or phone-to-TV communications, or in emerging use cases such as extended or mixed reality.
  • LiFi also provides greater data security because the signal does not pass through walls, and it can be used in areas where radio frequency is undesirable, like hospitals, aeroplanes or under water.

Key Facts about Innovations for Defence Excellence (iDEX):

  • It is the flagship initiative of the Union Ministry of Defence.
  • It aims to achieve self-reliance and foster innovation and technology development in Defence and Aerospace by engaging Industries including MSMEs, start-ups, individual innovators, R&D institutes, and academia.
  • It has partnered with leading incubators in the country to provide handholding, technical support and guidance to the winners of the iDEX challenges.
  • Funding:
    • iDEX will be funded and managed by a ‘Defence Innovation Organization (DIO)’, which has been formed as a ‘not for profit companyas per Section 8 of the Companies Act 2013 by the two founder members, i.e. Defence Public Sector Undertakings (DPSUs) - HAL & BEL.
    • It functions as the executive arm of DIO, carrying out all the required activities, while DIO will provide high-level policy guidance to iDEX. 
    • Under iDEX, financial support is provided to Start-ups/MSMEs/individual innovators and Partner Incubators through DIO.