Implementation of File Sharing System Using Li‐Fi Based on Internet of Things (IoT)
Sunil L. Bangare, Shirin Siddiqui, Ayush Kumar Srivastava, Avinash Kumar, P.H. Bhagat, G. Pradeepini, S. T. Patil, Ahmed A. Elngar · 2023
In the past, the data transmission speed was limited to only 50kbps, namely, the wired ARPANET connection which was limited to only the US military in the 1960s, and now we have an easily accessible speed of up to 100Mbps. But, there is no stopping here, we can still cross the line and reach the unbelievable speed of transmission of up to 224 GB per second. Yes, that's right, which is equal to downloading 18 movies in the blink of an eye, by not using Radio frequency waves but using LIGHT FIDELITY. It is known as Li-Fi. Li-Fi is the new upcoming technology where the medium of transmission is light, and provides a super-fast speed of transmission of data with being eco-friendly to the environment without producing any harmful radiation to humans and other living creatures. So, with help of light as a medium, by using LED we can easily transfer and receive any text, audio, image, and video files. Like radio waves, visible light is part of the electromagnetic spectrum. The difference is that viable light has a spectrum 10,000 times larger than radio waves. This means Li-Fi has the potential for enormous capacity. Instead of transmitting information via one data stream, visible light would make it possible to transmit the same information using thousands of data streams simultaneously. The world's ever-growing desire for more data at faster rates is pushing Wi-Fi's capacity to its limits. Wi-Fi is achieved by transmitting data through radio waves, but can only transfer so much at a time. By 2019, it was estimated that the world will be exchanging roughly 35 quintillion bytes of information each month, which we have already passed. Because radio frequencies are already in use and heavily regulated, that data is going to struggle to find a spot in line. Wi-Fi is simply running out of space. Capacity is only part of the problem. Wi-Fi is not a terribly efficient solution. The base stations responsible for transmitting radio waves only function at about 5% efficiency, most of the energy being used to cool the stations. For those transmitting sensitive data, security is also a problem, as radio waves travel through solid objects such as walls and doors.