1. Solve the congestion problem.
Wi-Fi uses Radio Frequency (Radio Frequency) technology, which has very limited development. Devices such as computers, laptops, printers, smart TVs, mobile phones, and tablets must compete with each other for bandwidth.
With the advent of more devices that can use Wi-Fi, such as refrigerators, watches, and cameras, coupled with the diversion of data from mobile networks, traffic congestion has become more serious, and the quality of information transmission has also increased. affected.
Li-Fi uses the frequency of light waves, whose bandwidth is more than 10,000 times that of radio frequency, and does not conflict with Wi-Fi.
2. Security.
It is well known that Wi-Fi can produce electromagnetic interference (EMI), which affects aircraft equipment and medical instruments, and is potentially dangerous to power generation or oil and natural gas drilling.
Li-Fi uses light instead of radio waves, which is safe and does not cause electromagnetic interference.
3. Data protection.
Radio waves can penetrate walls and ceilings, but light does not have this ability. This distinguishes the difference between Wi-Fi and Li-Fi in data protection.
Hackers or intruders outside the building can sneak into indoor computers transmitted through Wi-Fi.
However, the information transmitted through Li-Fi can only be accessed within the lighting range of LED lights.
4. Speed.
The 802.11a/g standard Wi-Fi provides data communication speeds of up to 54Mbps, and there is currently technology that can increase the speed to 1Gbps.
However, the University of Edinburgh (pureVLC’s research partner and the alma mater of Professor Harald Haas, the father of Li-Fi) has demonstrated a speed of 3Gbps using a monochromatic light source.
Using full-color (red, green, blue) LED lights can increase the speed to 9Gbps.
5. Throughput.
Theoretically, the throughput of Li-Fi far exceeds that of Wi-Fi.
pureLi-Fi just released a product, a single small micro-LED capable of transmitting at 8Gbps.
The 2.4GHz and 5GHz bands are now saturated with existing devices like wireless phones, Bluetooth devices, and Wi-Fi, not to mention devices like augmented reality, virtual reality, driverless cars, and digital New technologies like billions of IoT devices.