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Data Transmission via LiFi Between Two Computers at The École Polytechnique, D'Abomey-Calavi (EPAC) in Benin, Africa
Today, we will briefly discuss about a LiFi project carried out in Benin, Africa. Anaïs Nassara, an Engineering student at the École Polytechnique, D'Abomey-Calavi (EPAC), carried out a research study on LiFi technology. She also developed a LiFi transmission system prototype and presented it along with her project results.
Anais stated: “I worked on the production of a prototype of LiFi data transmission. And this prototype allowed us to be able to show the feasibility of transmission using light. That's why we talk about LiFi.”
“We want to be able to implement and use this prototype in different sectors such as in the medical sector where we can seek to transmit data via light instead of using WiFi.”
If you have not been aware, LiFi technology has been experimented with in some African countries. For example, in Ivory Coast, LiFiLED, an African LiFi company delivers LiFi technology in rural areas.
In Nigeria, a small group of Nigerian entrepreneurs from LiFi Infinity extensively experimented with different LiFi systems in co-working spaces and residential spaces. The mission of Li Fi Infinity is to solve the issue of poor internet connectivity for everyone in Nigeria and later the entire continent of Africa, by delivering quality LiFi products and other services. Its main mission also aims to deliver high-speed and stable internet connections for individuals and corporate bodies in Nigeria and Africa at cheaper rates and educate the masses about LiFi technology.
You can watch the video below about the LiFi prototype. Mind you, the video is in french:
It is a prototype of data transmission by light. This opens the possibility of Internet access by light in Benin at low cost! This work follows another project in the same direction outside (FSO: Free space Optics) which will allow easy access to the internet while optical (non-wired solution) with a speed almost close to that of Fiber. optical.
We translated the transcript from French to English: You can read the following statements that were said in the video:
Reporter 1: “The digital revolution rhymes with the advance of technologies and source of Internet access. WiFi corresponds to the transmission of data by radio signal. A new technology is gradually appearing, with certain advantages in terms of economics, health and connection speed. This is Li-Fi, a method of transmitting data via light in Benin, mainly at the École Polytechnique, D'abomey-Calavi, EPAC. A student at the end of her engineering design cycle in computer engineering and telecommunications, Anaïs Nassarah, set up this prototype of data transmission by light.”
Anaïs Nassara: “I worked on the production of a prototype of LiFi data transmission. And this prototype allowed us to be able to show the feasibility of transmission using light. That's why we talk about LiFi.”
Reporter 1: “LiFi technology consists of using the light from electric bulbs to access the Internet connection on computers, tablets, and smartphones. Anaïs brilliantly presented the results of her research on this technology through a thesis defence on Wednesday, December 22, 2021 at EPAC. Dr Fréjus Sanya, teacher at EPAC, was her supervisor.”
Dr Fréjus Sanya: “Illustrating a bit of what is called LiFi optical transmission. It's that when you take your remote control home, you press your TV channel and finally, you see the reactions on the TV. This is to say that the transmission is done in the optics the same thing. It would take this time to transmit data. Agree from one terminal to another, therefore from one computer to another. This is what we wanted to achieve through this thesis to show that, instead of connecting computers to each other in a computer network, for example with cables or with WiFi, it's easy, we can do it through light.”
Reporter 1: “LiFi offers four main advantages over WiFi. First, the prototype manufactured by Anaïs is deployed at a very low cost, unlike a Li-Fi device from the West. Then, in general, LiFi limits the risks of remote hacking in terms of health. Li-Fi is not subject to any exposure to electromagnetic waves deemed harmful to the human body.”
Anaïs Nassara: “We want to be able to implement and use this prototype in different sectors, such as in the medical sector where we can seek to transmit data via light instead of using WiFi, which has potential risks for human health.”
Reporter 1: “Beyond health, LiFi offers the advantage of a very high speed close to fibre optics, which is the most optimal process in the world in terms of Internet connection.”
Dr Fréjus Sanya: “When you're used to WiFi, it's because when you become numerous in a WiFi network, the speed drops so it becomes slow. On the other hand, with the light, as long as you are under the light, the lighting, you all have exactly the flow that you are given by everyone. Exactly, the same flow no matter how many of you are under the light.”
Reporter 1: “This wireless data transmission technology using light can be implemented in various fields. Already experimented in diverse domains, LiFi can also be deployed in medicine and aeronautics.”
Dr Fréjus Sanya: “In the case of hospitals, where we tell people not to hang around with their smartphones because of the risks in harming some medical equipment. The same goes for the planes, we tell them to switch their phones so that it does not interfere with the pilot’s control panel. But today, thanks to any light source, we can now help people easily.”
Reporter 1: “As part of her work, Anaïs Nassara has already produced a first Li-Fi prototype that has been proven to be effective. But for its large-scale implementation, the necessary means must be provided.”
Anaïs Nassara: “We naturally need financial help to be able to say that we are going to make several prototypes and in order to make a concrete implementation.”
Dr Fréjus Sanya: “With the prototype she has developed, for example, we are able to transfer images and other data from one PC to another. If you want to go beyond, you must review and improve the electronics behind. And that's where we want to apply for funding for that.”
Li-Fi Conference 2022
The Li-Fi Conference 2022 Edition was a great success. Li Fi Tech News will very soon write articles on the topics treated at the Conference.
What is LiFi?
LiFi, also known as "Light Fidelity" is a wireless optical networking technology, which uses light-emitting diodes (LEDs) to transmit data. In 2011, professor Harald Haas made a LiFi demonstration at the TED (Technology, Entertainment, Design) Global Talk on Visible Light Communication (VLC).
VLC uses light as a medium to deliver high-speed communication like Wi-Fi and complies with the IEEE standard IEEE 802.15.7. The IEEE 802.15.7 is a high-speed, bidirectional, and fully networked wireless communication technology-based standard similar to Wi-Fi's IEEE 802.11.
How does LiFi work?
LiFi is a high speed, bidirectional, and fully networked wireless communication of data using light. LiFi constitutes of several light bulbs that form a wireless network.
When an electrical current goes through to a LED light bulb, a stream of light (photons) emits from the lamp. LED bulbs are semiconductor devices, which means that the brightness of the light flowing through them can change at extremely high speeds. The signal is sent by modulating the light at different rates. The signal can then be received by a detector that interprets the changes in light intensity (the signal) as data. Also when the LED is ON, you transmit a digital 1, and when it is OFF, you transmit a 0.
LiFi Benefits
The primary benefits of LiFi are as follows:
• Security: Provides entirely secure access. Where there is no light there is no data.
• Safety: Does not produce electromagnetic radiation and does not interfere with existing electronic systems.
• Localisation: Allows localisation due to the small coverage area of LiFi access point - localisation can be used for very precise asset tracking.
• Data density: Provides ubiquitous high-speed wireless access that offers substantially greater data density (data rate per unit area) than RF through high bandwidth reuse.
Credit to Oledcomm
LiFi Applications
LiFi can be used for so many applications and the list is increasing every year. You can read our updated list of Li-Fi applications at the following link:
Credit to pureLiFi
LiFi Systems Reviews by LiFi Tech News
OLEDCOMM LIFIMAX KIT REVIEW - ONE YEAR IN
We reviewed the LiFiMax kit produced by the leading French LiFi company Oledcomm. We bought this LiFi kit system at the end of 2020. After over a year of use, we decided to write a review of this LiFi system. We looked briefly at the profile of Oledcomm, a brief history of the LiFiMax system, the Kit box contents, some testing and performance results of this LiFi system, the customer experience and our own verdict (the good and the bad points) of the LiFiMax kit.
You can read the review on this link:
https://www.lifitn.com/blog/lifimaxreview
SIGNIFY TRULIFI 6002.1 STARTER KIT SYSTEM REVIEW
We also reviewed the Trulifi 6002.1 starter kit produced by Signify, the world leader in lighting for professionals, consumers and lighting for the Internet of Things. We got this LiFi kit system with the help of PCDSI and Signify around August 2021. In a similar fashion done with our previous review of the LiFiMax kit a few months ago, we will look briefly at the profile of Signify, a brief history of the Trulifi 6002.1 kit, the Kit box contents, some testing and performance results of this LiFi system, the customer experience and our own verdict (the good points and the bad points) of the Trulifi 6002.1 kit.
You can read the review on this link:
https://www.lifitn.com/blog/trulifi6002review
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