What Would You Choose- Li-Fi Vs WiFi?
You might be thinking its a misspelled the word? No, I wish it would, but its something that awaits to unfold an update. Let’s know its difference to understand it better. WiFi transmits data with the help of WiFi Router that uses radio waves, while LiFi transmits data with the use of LED bulb light. WiFi has interference issue as compared to LiFi, as it has less interference issues. Wi-Fi is the abbreviation of Wireless Fidelity while Li-Fi is the short form of Light Fidelity. Which one is better- LiFi Vs Wifi??
To answer this question better, let us go through some specifics of LiFi and its comparison with Wi-Fi–
- To transmit information via Li-Fi- a light-based wi-fi is easy as it works on light, not on radio waves.
- Transmission of data using illumination helps in using, sending and transferring data through an LED lamp.
- The intensity of light is faster, as its fastness cannot be perceived by human eye.
- Li-Fi will use transceiver-fitted LED lamps, that will not only light up the room but will help in data transmission too.
- Li-Fi is a good deal for high-density wireless date coverage that is shared in the confined space to have no radio interference issues. While Wi-Fi is good for wireless coverage within building premise. So more or less these two techniques are complementary in nature.
What Are The Pros and Cons of Li-Fi?
- As Li-Fi uses visible light spectrum so it can solve issues relating to insufficiency of radio frequency bandwidth.
- It can achieve data transmission up to 10Gbps with the use of Li-Fi.
- As light cannot penetrate walls so it offers you with privacy and security that Wi-Fi cannot.
- It has low implementation and maintenance costs.
- EM waves are restricted whereas Li-Fi can be used in RF restricted environments as well.
- Light cannot pass through objects.
- The receiving device will be transmitted back to a transmitter and that is the only challenge with Li-Fi.
- Interference objects from external light sources can be- sun, light, normal bulbs and opaque materials.
Why Is Li-Fi Better Than Wi-Fi?
LiFi is 100 times faster than Wi-Fi as it includes the use of high-speed Google Fiber. Li-Fi can solve issues like- energy efficiency, availability, capacity, and speed. It’s harder for neighbors to steal your internet and use the same without paying for it.
How Can Data Be Transmitted Over Light?
For sending data it’s necessary to send data over light as Li-Fi relies on LED bulbs. If the LED light bulb has signal processing technology, it can send data at rapid speeds. Look to your TV remote for an example of how you already use Visible Light Communications in your daily life. Even though you’re not transmitting a PDF to your TV, you’re using light technology to communicate that you’d like to turn it on.
Whose Bright Idea Was LiFi, Anyway?
The idea of communicating through visible light Li-Fi started in the 1880s by Graham Bell and began to take shape in earlier 2010 by Harald Haas. He invented a device called the “photophone,” which transmitted speech via flickers of sunlight to hundred meters.
Bell was so proud of this invention that Wrote something for her daughter and his father-
“I have heard the articulate speech by sunlight!
I have heard a ray of the sun laugh and cough and sing!” Unfortunately, widespread use did not take off due to interference from light-blocking sources and the rise of the telephone as the primary mode of audio communication.