What is Li-Fi and Mi-Fi & their difference?

What is Li-Fi?

Li-Fi ( Light Fidelity) can be considered of as a light-based version of Wi-Fi. That is, instead of radio waves, it transmits data using light. Li-Fi employs transceiver-equipped LED bulbs that can both brighten a room and broadcast and receive data. Because basic light bulbs are utilised, there can theoretically be an unlimited number of entry points.

This technique takes advantage of a portion of the electromagnetic spectrum that is underutilised at the moment: the Visible Spectrum. Light has been a part of human life for millions of years and has had no significant negative impact.

Because the intensity is adjusted so quickly that human eyes cannot detect it, the output seems continuous. It is possible to encode data in light by varying the frequency at which the LEDs flutter on and off to create different strings.

Using light to transfer data allows LiFi to provide several benefits, including the ability to function in environments prone to electromagnetic interference, such as hospitals and aeroplane cabins, and to work across a wider magnitude while enabling faster transmission speeds. LiFi technology is now being developed by various of groups all around the world.

How does it work?

LiFi is a Visible Light Connections technology that transmits wireless internet communications at extremely fast speeds. LiFi technology functions in the same manner as light does since it is powered by light waves emitted by regular home LED bulbs. Because visible light has a significantly larger capacity than WiFi, LiFi-enabled devices can send and receive massive amounts of data at incredibly rapid rates.

Light cannot go through walls because the light waves are too tiny. Importantly, for the technology to operate, your light source must be turned on in order to transmit and receive light signals. So, if you're operating your smart home only on LiFi, you'll need LED lamps throughout the house.

Moreover, because of the ability to build physical barriers, LiFi offers better security than WiFi. You may contain light within an area to safeguard the communications you send and receive from outside parties.

LiFi transmissions are also resistant to electronic radiation, which may be a problem in radio frequency-sensitive places. Similarly, if you switch on your microwave or cordless phone near a LiFi signal, you will not disturb an essential message.

Advantages of Li-Fi

Its transmission speed would be substantially faster than that of WiFi. As previously stated, it would flow at a rate of 10 to 20 Gbps, and maybe much faster.

Lifi might be utilised in settings that are sensitive to magnetic waves, such as aircraft or hospitals, without producing disturbance.

It would not always be required for the lights to be on at a level detectable by humans. Their intensity could be modified so that they might continue to work invisibly.

The implementation of Lifi technology would be quite affordable. It would be sufficient to add modulators to the lights and integrate the requisite receivers in the gadgets.

Disadvantages of Li-Fi

LiFi has a restricted range and cannot transmit data through opaque objects.

As they have short-range light beams. They can work for 5-10 metres. However, some sensors are utilised to overcome these limitations and aid to extend network lengths.

Without a light source, it is impossible to share the internet.

What is Mi-Fi?

Mi-Fi is a gadget or service that allows users to share their internet access. It is performed through the use of a data connection, which is a type of internet connection. It connects to the internet using a specific access point. It is transportable and may be purchased everywhere you go.

Portable hotspots, such as the MiFi, require a large amount of electricity to operate. Depending on how many devices you connect and how often you use them, the battery life may or may not be adequate for your needs. Current MiFi devices, on the other hand, can supply a full day's worth of power to ordinary users who connect intermittently before the gadget has to be recharged. It is performed through the use of a data connection, which is a type of internet connection.

How does it work?

A MiFi wireless connection is a gadget that functions as a mobile hotspot for Internet access. The gadget is incredibly tiny and compact, and it may fit in your pocket or handbag. We can allow many users to connect to the mobile access point. When we need broadband, we just turn it to hotspot mode.

MiFi functions similarly to a home broadband router but instead taps into a 4G or 3G network. For MiFi, your mobile devices and perhaps your laptop connect to the MiFi device, making a mini LAN (Local Area Network).

Unlike with a dongle, which can only be used with one device, MiFi may be shared with up to ten individuals using a single MiFi device. Users must, however, be within 10 metres of the MiFi system.

Advantages of Mi-Fi

It enables you to connect to the internet from any location.

This gadget can link 5-10 devices to the internet.

Because these gadgets are lightweight and compact, carrying them is not a problem.

MiFi plans are more flexible and superior to mobile phone data plans.

By using a MiFi instead of our phones to establish a hotspot, we can conserve our phones' batteries. MiFi devices have excellent battery life.

Disadvantages of Mi-Fi

The speed of the internet connection is determined by the intensity of the cellular data signal.

When many phones are connected, the speed reduces and the battery consumes more faster.

Even though wireless networks use a variety of encryption mechanisms, they are still vulnerable to attack.

Difference between Li-Fi and Mi-Fi

hotspots

Li-Fi uses light to transmit data.

Mi-Fi is a wireless router that can function as a hotspot

Ability

Li-Fi has the capacity to operate safely in areas that would otherwise be sensitive to electromagnetic interference.

Mi-Fi can be connected to up to ten devices with cellular networks.

speed

Li-Fi features a faster transmission speed and a broader bandwidth channel.

Mi-Fi has a faster speed than wifi but a slower speed than Li-Fi.

The whole information regarding the Li-Fi and Mi-Fi is presented above.