LiFi Technology

 What is LiFi?

LiFi, also known as "Light Fidelity" is a wireless optical networking technology, which uses light emitting diodes (LEDs) to transmit data. In 2011, professor Harald Haas made a LiFi demonstration at the TED (Technology, Entertainment, Design) Global Talk on Visible Light Communication (VLC).VLC involves light as medium to deliver high-speed communication in a manner similar to Wi-Fi and agrees with the IEEE standard IEEE 802.15.7. The IEEE 802.15.7 is a high-speed, bidirectional and completely organized wireless communication technology-based standard similar to Wi-Fi's IEEE 802.11.

How does LiFi work?

LiFi is a high speed, bidirectional, and completely organized wireless communication of data using light. LiFi comprises of several lightbulbs that structure a wireless organization.

At the point when an electrical current is applied to a LED light bulb a stream of light (photons) is emitted from the bulb. LED bulbs are semiconductor gadgets, and that means that the brightness of the light flowing through them can be changed at extremely high speeds. This means that the signal can be sent by modulating the light at different rates. The signal can then be gotten by a detector that interprets the changes in light intensity (the signal) as data. Also when the LED is ON, you transmit a digital 1 and when it is OFF you transmit a 0.

The intensity modulation cannot be seen by the human eye, and thus communication is just as seamless as other radio systems, allowing the users to be connected where there is LiFi enabled light. Using this technique, data can be transmitted from a LED light bulb and back at high speeds.

Visible Light Communication

Visible Light Communication, also known as VLC, can be defined as the transmission of data through the utilization of light sources emitting at visible wavelengths between 400 and 800 THz (780-375 nm). It is a subset of optical wireless communications technologies.

The VLC market is in its infant stage. There is a growing demand for an alternative wireless communication technology because of the crowding of the Radio Frequency (RF) bandwidth. This will result in the adoption of VLC technology on a global scale. As the VLC technology is based on LEDs, it doesn't face distortions or spectrum deficits and can transfer data at tremendous speeds.

LiFi vs Wi Fi

LiFi involves light for data transmission while WiFi involves electro-magnetic waves at radio frequencies for data transmission. Because of less interference incurred by light compare to radio recurrence waves, it is utilized in more thick environments.

LiFi covers distance of about 10 meters while WiFi covers about 30 meters.

Cost of LiFi

Getting LiFi products from different LiFi companies can be very expensive for consumers. According to pureLiFi, they are currently working towards miniaturization of LiFi technology as well as making affordable for consumers in the since a long time ago run. Ultimately the end goal is to have LiFi in every mobile device. This means that the technology will be affordable for integration into handsets, tablets and laptops.

Ultimately the end buyer will see minimal or no cost associated with LiFi as the goal is to have LiFi inserted in every wireless mobile device. Today companies can speak to pureLiFi about working with us on proof of concept projects and other types of installations. These installations are valued based on individual requirements. PureLiFi just offers B2B administrations.

PureLiFi has just recently started to offer a LiFi starter kit for small businesses and institutions at the cost of £2500 (1,87,033.75 Indian Rupee) excluding delivery and duties.

The LiFi starter kit includes the following:

2X - LIFI STATIONS

USB (2.0) dongle that fits into device to send and receive data, to and from Access Point.

2X - LIFI ACCESS POINTS AND TX DRIVERS

This help connecting to the LiFi-enabled lights to send and get data.

2X - LUCICUP II LUMINAIRES

These are LiFi enables lights to send and receive data.