Li-Fi… The Future Generation Access Point Technology

Picture this-you wake up and tap your smartphone to switch on your coffee machine. As you make breakfast, your refrigerator sends you a text that you’re out of orange juice. Clued in with this message, your car’s GPS routes you to the grocery shop on your way back from work, as you use your phone to switch on your home heating system, so things are toasty warm when you get back. At the forefront of this connectivity phenomenon popularly known as the ‘Internet of Things’, is an optical communication technology that’s taking the world by storm. Light Fidelity or Li-Fi, is an exciting breakthrough in 5G visual light communication systems and the future of wireless Internet access.

How Li-Fi Works:
Understand this, Li- Fi uses LED lights to transmit information via the air. With Li-Fi, you can connect to the internet simply by being within range of an LED beam.

With Li-Fi, information hitches a ride along a spectrum of visible light. Light-emitting diode (LED) bulbs, transmit data when they are switched on and off so rapidly in nanoseconds, that the human eye cannot see it. This data is registered by special equipment, making it possible to provide wireless Internet connectivity at a current experimental speed up to 10 Gbps, which is estimated to be 250 times faster than ‘superfast’ broadband. The vast availability of LED light bulbs will drive the future ubiquity of connectivity even in places where Wi-Fi fails-on an airplane and in submarines, for example.

Another advantage of Li-Fi is zero electromagnetic interference, allowing connectivity even in areas where Wi-Fi isn’t accepted – hospitals and nuclear plants among others. In addition, Li-Fi offers better data defense as light waves can’t pass through walls, making it impossible to hack any internal systems in high-security buildings.

As radio waves used by Wi-Fi get more congested and the demand for faster and more efficient wireless communication escalates, the future is bright for Li-Fi as a reliable, affordable and more secure solution.

It works on the following principle:
It uses a light source at one end like a LED and a Light Sensor device (a device that is used to detect light) on the other end. Data is fed into an LED light bulb (with signal processing technology). When the LED starts emitting light, the light sensor on the other end converts the changes in light intensity (LED’s on and off) from the LED light source into electrical current and then binary code.
Note that the light is flickered. Flickering of LED Lights i.e. on and off at extreme speeds is used to write and transmit messages in binary code.


Harold Haas from the University of Edinburgh, who first demonstrated Li-Fi to the world, envisioned turning light bulbs into super-speed broadband wireless Internet systems. As Li-Fi becomes more commercialized, it will usher in an era of incredible business opportunities, such as allowing telecom service providers to reach out to a wider customer base. We can look forward to broader accessibility with Li-Fi Cloud. Smartphones will soon be able to download traffic information from traffic lights or a program guide from a television. This is the tip of the iceberg. In the future, shops will transmit advertisements to your phone as you pass by and bus schedule changes will be transmitted to a screen at the stop. Smarter home appliances that talk machine-to-machine (M2M) are already being extensively researched, where LED lights on electronics function as Li-Fi access points. In fact, the Li-Fi industry is set to become a $6 billion industry by 2018.How else do you think that Li-Fi will revolutionize the way we connect with man and machines? Leave your comments in the section below.

It is like switching a torch on and off according to a certain pattern. Now if the LED keeps on emitting light continuously there will be multiple binary’s meaning a huge message can be transmitted. The process of switch on and off is quick, it is invisible to human eye.

16 thoughts on “Li-Fi… The Future Generation Access Point Technology

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  2. Hey, how’s it going?

    I want to pass along some very important news that everyone needs to hear!

    In December of 2017, Donald Trump made history by recognizing Jerusalem as the captial of Israel. Why is this big news? Because by this the Jewish people of Israel are now able to press forward in bringing about the Third Temple prophesied in the Bible.

    The Jewish people deny Jesus as their Messiah and have stated that their Messiah has been identified and is waiting to be revealed. They say this man will rule the world under a one world religion called “spiritualism”.

    They even printed a coin to raise money for the Temple with Donald Trumps face on the front and with king Cyrus'(who built the second Temple) behind him. On the back of the coin is an image of the third Temple.

    The Bible says this false Messiah who seats himself in the Third Temple will be thee antichrist that will bring about the Great Tribulation, though the Jewish people believe he will bring about world peace. It will be a false peace for a period of time. You can watch interviews of Jewish Rabbi’s in Israel speaking of these things. They have their plans set in place. It is only years away!

    More importantly, the power that runs the world wants to put a RFID microchip in our body making us total slaves to them. This chip matches perfectly with the Mark of the Beast in the Bible, more specifically Revelation 13:16-18:

    He causes all, both small and great, rich and poor, free and slave, to receive a mark on their right hand or on their foreheads, and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name.

    Here is wisdom. Let him who has understanding calculate the number of the beast, for it is the number of a man: His number is 666.

    Referring to the last days, this could only be speaking of a cashless society, which we have yet to see, but are heading towards. Otherwise, we could still buy or sell without the mark amongst others if physical money was still currency. RFID microchip implant technology will be the future of a one world cashless society containing digital currency. It will be implanted in the right-hand or the forehead, and we cannot buy or sell without it! We must grow strong in Jesus. AT ALL COSTS, DO NOT TAKE IT!

    Then a third angel followed them, saying with a loud voice, “If anyone worships the beast and his image, and receives his mark on his forehead or on his hand, he himself shall also drink of the wine of the wrath of God, which is poured out full strength into the cup of His indignation. He shall be tormented with fire and brimstone in the presence of the holy angels and in the presence of the Lamb. And the smoke of their torment ascends forever and ever; and they have no rest day or night, who worship the beast and his image, and whoever receives the mark of his name.” (Revelation 14:9-11).

    People have been saying the end is coming for many years, but we need two key things. One, the Third Temple, and two, the technology for a cashless society to fulfill the prophecy of the Mark of the Beast.


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