Many people are enthusiastic about the Wi-Fi concept, nowadays, and for good reason. Wi-Fi has penetrated almost every aspect of human life, from homes and businesses to essential public services like ICT and transportation. Due to the strong reliance on Wi-Fi, many people have become the ideal wireless network users. That’s why a similar notion known as LiFi seems foreign to consumers – but the concept has been around for many years.
The words, Wi-Fi and LiFi, are similar (both refer to wireless data transmission technologies), but fundamentally different because Wi-Fi uses radio waves while using LiFi light. However, there is no limit to their differences of opinion. Here we examine the many differences as well as the advantages and disadvantages of both technologies to provide a clearer understanding of these concepts.
What is a wireless internet connection?
Wireless fidelity is the name of a wireless networking technology using radio waves to connect to the wireless network to provide access to the Internet or to communicate data. It is very popular because it allows users to tap into the wireless network, creating a link between a device and the transmitter without a physical cable.
When an antenna has a radio frequency (RF) flux, an electromagnetic field is produced which propagates over each space. This provides an access point to connect to the World Wide Web. These access points can be reached within 20 – 50 meters. However, the user must have a wireless network adapter installed on their device to connect to an access point.
Wi-Fi uses the radio spectrum to function. The radio spectrum contains frequencies between 3 Hz and 3,000 GHz and is part of the electromagnetic spectrum. Radio waves, which are waves that are generated within this frequency range and are commonly used in communications, are susceptible to interference at different frequencies.
As a result, national laws, in collaboration with the International Telecommunication Union, rigorously control the creation and transmission of radio waves.
Advantages of Wi-Fi
Wi-Fi has a number of advantages. Before the invention of Wi-Fi, users had to physically connect to a modem over an Ethernet cable to access the Internet, which was cumbersome and inconvenient. To access the internet from a great distance, such as at the end of an office, extremely long connections were required, which were expensive. Extra connections required additional cables, which was also expensive. Offering unlimited access to local area networks and the Internet, Wi-Fi eliminates the need for physical connections to servers. Because Wi-Fi connections are wireless, users can access them from virtually any location within range. Users can enjoy Wi-Fi connections within a 20 to 50 meter radius of the source, as radio waves can pass through barriers.
Providers these days offer powerful Wi-Fi routers along with Internet services to give customers access over long distances. Cox Internet Service, for example, comes together with one of the best performing routers at the cheapest rates on the market.
Additionally, a Wi-Fi internet connection is easy to set up. All you need is an Internet Service Provider (ISP) to provide the Internet connection, as well as a Wi-Fi router to create an access point. The widespread availability of Wi-Fi is due to its ease of use. In fact, nowadays you have to travel quite a distance to discover a location without Wi-Fi connectivity.
What is Li-Fi?
LiFi, on the other hand, is at the opposite end of the spectrum. Light Fidelity, or LiFi, is a new technology that transmits data using visible light communication (VLC) instead of radio waves. Solid-state lighting (SSL) such as LED light bulbs are used in LiFi to transmit data and enable internet or wireless network connection.
This is achieved by emulating the light from the transmitter and receiving it through a photodiode (the receiver). The signals from the transmitter are then converted into usable data formats that the end user can easily find. Due to the nature of visible light, LiFi connections are usually limited at the place where they are delivered.
The spectrum of visible light
Unlike radio waves, visible light and LiFi are used. Because the visible light spectrum is 10,000 times larger than the total radio spectrum, LiFi can reach a wider variety of available frequencies. The visible light spectrum contains tones from near-ultraviolet to near-infrared and frequencies between 430,000 and 770,000 GHz.
Advantages of LiFi
There are several benefits to adopting LiFi. Its efficiency is one of the most significant advantages. LiFi uses VLC technology, which alternately uses energy-efficient LED lights, allowing customers to save their money on their energy bills.
In addition, they only require functional LED lights, which are already present in most homes and shops, which allows for further cost reductions as far as installation is concerned. Another significant advantage of LiFi is that because the light travels at such high rates, it allows LiFi connections to happen almost instantly.
When comparing Wi-Fi and LiFi, it is difficult to choose one over the other, as each has its own set of advantages and disadvantages. As a result, a new thought must be formed, and these technological devices must be viewed in a new light.
A common misconception regarding LiFi systems is that they were designed to completely replace Wi-Fi. Because much of the existing infrastructure was built to support RF technology, replacing everything to make room for newer technology would be extremely expensive and time-consuming.