LiFi: A Li-Fi system provides high-speed internet in the mountains; Sonam Wangchuk's school also has this device..

Following the recent violence and hunger strike demanding full statehood in Ladakh, social activist and engineer Sonam Wangchuk is in the news. Sonam is often recognized for his inventions and philanthropic work for the people of Ladakh. He is also an innovator and education reformer and runs a school in Fay village, Ladakh, that enrolls students who have failed or dropped out of the 10th grade. However, few people know that Sonam was the first person to provide completely wireless high-speed internet access, even in the rugged terrain of Ladakh.

In fact, Sonam used LiFi technology in 2023 to provide internet access to some villages in Ladakh. With this technology, he was successful in providing high-speed internet access to his school. In this article, we will tell you about LiFi internet and how this technology can be used to provide internet at speeds up to 224 Gbps.

What is LiFi?
LiFi, which stands for Light Fidelity, is a wireless optical networking technology. This technology uses LEDs (light-emitting diodes) for data transmission. This technology was first introduced to the public in 2011. It is also known as Visible Light Communication (VLC). VLC technology provides high-speed communication through light. It follows the IEEE 802.15.7 standard, similar to the IEEE 802.11 standard for Wi-Fi technology.

How does LiFi work?
LiFi is considered a high-speed, bi-directional, and fully networked wireless data communication technology. It consists of multiple LED bulbs that together create a wireless network. When an electrical current flows through an LED bulb, it emits light in the form of photons (light particles). The brightness of the light emitted by an LED bulb can be changed very quickly. Data transmission occurs through this change.

The data receiver detects changes in light intensity and converts them into digital data. Simply put, when an LED bulb is on, it means a digital 1 is being transmitted. When an LED bulb is off, it means a digital 0 is being transmitted.

Advantages of LiFi
LiFi provides completely secure access. Where there is no light, data will not be available. This technology does not produce electromagnetic radiation and does not interfere with existing electronic systems. Furthermore, LiFi has a small coverage area, making it extremely useful for exact location tracking and asset tracking. This technology provides high-speed wireless access, and the data density (data transfer per unit area) is much higher than Wi-Fi or RF technology. With the help of this system, data transfer speed of up to 224 Gbps is achieved, which is 100 times faster than normal Wi-Fi.

Disclaimer: This content has been sourced and edited from Amar Ujala. While we have made modifications for clarity and presentation, the original content belongs to its respective authors and website. We do not claim ownership of the content.