What is Li-Fi Technology? Accessing the Internet with Light?
In today’s world, where internet speeds are increasing, a new wireless connection technology called Li-Fi is being developed. So how is this technology different from our current capabilities?
Today, Wi-Fi technology, which allows us to access the internet wirelessly, is found in almost every digital product. However, this technology, which has been developed over the years and brought to much better places, is insufficient in some areas. For this, scientists are developing a new technology called Li-Fi, which uses light to transmit data.
How does Li-Fi work?
Li-Fi technology transfers data electromagnetically, just like Wi-Fi. The critical point is that while Wi-Fi uses radio waves, Li-Fi uses visible light. For this new technology, classified as a Visible Light Communication System, to work correctly, a light-receiving photo-detector and equipment to process the received signal and convert it into mobile data are needed.
Since LED lamps are semiconductors, the energy transmitted can be reduced and increased in times too short to be perceived by human beings. In this direction, the signal processing equipment in the LED lamp will send the data that can be transmitted with slight differences in light rays and collect it with a photo-detector (photodiode) on the device side.
The transmitted data will then be processed and converted into binary data, providing access to files such as the internet, video, and audio used in our daily lives.
So what are the benefits of this technology?
- Li-Fi allows the use of 10,000 times more capacity than Wi-Fi, as it does not use radio frequencies, which are extremely busy in our world.
- It paves the way for the Internet of Things (IoT) by allowing more than 100 devices to connect to the internet with a single distributor device.
- It saves 100 times the energy by simultaneously performing data communication and lighting through a single device.
- It eliminates all the health problems that Wi-Fi can cause, such as headaches, cancer, and more.
- Hold tight: Li-Fi technology enables data transfer rates of 224 Gbps per second.
It remains to be seen when this technology will become widespread among users. First, the infrastructure that will allow Li-Fi to work needs to be created, and then users need to acquire devices that can work with Li-Fi. One of the disadvantages of this technology is that the LED lamp must be on all the time to benefit from Li-Fi technology.