Li-fi stands for light fidelity and is a brand new area of innovation termed as VLC (Visible Light Communications) system. In an incredible piece of technological discovery and innovation, Li-fi makes use of typical household LED bulbs for data transfer. It promises speeds in excess of 220 Gbps and is being largely anticipated as the successor to wi-fi. There are many unbelievable uses of Li-fi which can change the world we live in and the way we live in it. It can precipitate and complement the up and coming technologies of Internet of Things, underwater safety and even augmented reality. Harald Hass, professor at University of Edinburgh, envisioned wireless routing through simple light bulbs. He coined the term Li-fi and holds the ambition to be the world leader in Visible Light Communications.
What’s the secret behind the working of Li-fi? Find out
Just like Wi-fi, Li-fi also transmits data electromagnetically; the only difference between the two is the spectrum of electromagnetic waves each uses. Wi-fi runs on radiowaves whereas Li-fi uses visible light. Through the simple use of photo-detectors and signal processing elements, Li-fi transmits data through rapid dimming of the LEDs (not visible to the human eye) which is perceived as an electrical signal by the receiver. Once we have the electrical signal, we then convert it into a binary data stream, which forms the basis of audio, video and web applications.
The barrier that surrounds Li-fi temporarily
Light is becoming quite a luxury now as mankind continues to exhaust resources to replenish the brightness. The thing about Li-fi is that it runs on light, which means we need the light bulbs to be on continuously throughout the time of our usage. We don’t just use internet during the night, so the light bulbs will have to be on during the day. Moreover, building public Li-fi networks might strenuous due to the same reasons. Another important thing of note here is that, unlike radiowaves, light cannot pass through walls, which means all members of the household will have to be in the same room to enjoy Li-fi internet! Also, the lesser the number of light bulbs, the lesser will be the quality of connection. But, it’s not all gloomy for the Li-fi fans, the potential data transfer capabilities in excess of 200 gigabytes per second may just be the kind of technology that knocks out wi-fi in the race for internet of things.
Upcoming Features of Li-fi
Rumors are that Apple has instigated plans to build devices with Li-fi capabilities. French lighting company, Lucibel and Li-fi pioneers pure Li-fi have joined hands to bring in 2-in-1, light and connectivity, devices in the market. This indicates good prospects businesses, which may be lured into the world of light fidelity just for the sake of its incredible speed.
Attractive uses of Li-fi
Any technology is only as good as the amount to which it affects the lives of the common man. The advent of smart phones completely changed our lifestyles. Today we carry the world of information on our palm tops. Wi-fi has entirely engulfed the internet service industry by being the most effective means of net provision. But the question is, does Li-fi have it in itself to augment our lives for good? Well, it may just have. As light is everywhere from cars to street lights, Li-fi can lay the foundations of car to car communication and internet on the road through Li-fi enabled street lamps. Additionally, because Li-fi has a shorter range than wifi, it promises a more secure internal network. Lastly, as radio waves diminish underwater, Li-fi can become the masterful means of communication underwater.
Author Bio: Ashley Albetr is the writer of this blog post who works in the IT industry in UK. Her contributions to Online Essay Help are extremely invaluable for our readers who stay updated regarding new technologies. You can also follow her at different social networks like Facebook, G+ and Twitter.