LiFi The Future of Wireless communication

Meet LiFi The Future of Wireless communication Light Fidelity Li-Fi (Light Fidelity) is a bidirectional, high speed and fully networked wireless communication technology similar to Wi-Fi. We have been using WiFi from decades and been so happy with the service it  offers us.What if I told you that every one of the billions of light bulbs around  the world could be used as a wireless hotspot for your electronic devices? Oh, yeah, and that your data speed would be 1gigabit per second (Gbps), or about 100 times faster than current Wi-Fi technology? Meet Li-Fi, the potential successor to Wi-Fi The moment we hear the word, we tend to havemultiple questions popping in our mind simultaneously. Isn’t it? What is this LiFi thing? Seems like brother of Wifi or something? How it is going to work and most important how beneficial itis for me? Let’s explore it detail below:LiFi – Light Fidelity is a bidirectional, highspeed and fully networked wireless communication technology similar to Wi-Fi discoveredin 2010 and capable of transmitting signals 100 times faster than WiFi J You must have calculated seconds it will taketo download a HD video right ;) ? I did the same J Though it's already been in development for afew years, Li-Fi's catching more eyeballs over  Internet or Tech meets since this year.Earlier this year, researchers at the University of Oxford achieved speeds of224 Gpbs. (That speed would allow you to download 18 feature-length films in asingle second.) Can you  believe that?? Who invented it? German physicist Harald Haas, a professor atthe University of Edinburgh, coined the term Li-Fi and first introduced thetechnology at the TED conference in Edinburgh back in 2011. (You can watch histalk below; it starts to get really interesting around the 5:40 mark.) https://youtu.be/NaoSp4NpkGg Haas went on to found pureLiFi, a company that has taken thelead in bringing this ground-breaking research to market. Haas serves as chief scientificofficer, and he's been joined by a number of “visible light communicationengineers." Their vision statement: "To be the world leader inVisible Light Communications technology enabling ubiquitous, high-speed, securedata networks wherever there is illumination." To do that, Haas imagines a world in which LED light bulbs replacecurrent wireless routers. As he explains in his talk, an LED bulb is asemiconductor, an electronic device whose intensity can be modulated at veryhigh speeds. A standard television remote control uses an infrared LED tocreate a simple, low-speed data stream (about 10,000 to 20,000 bits per second).Or,as Haas points out, "not suitable for a YouTube video." Li-Fi devices attempt to transmit not one data stream, but thousandsof data streams in parallel, at higher speeds. https://youtu.be/FbDohcbuhu0 Beyond the obvious jump in speed, what other benefits could Li-Fipotentially bring? Haas mentions three: Efficiency: Li-Fi is data through illumination. You're already usingbulbs to provide light, so if the same bulbs are used to transmit data; itcomes without extra energy costs. (Haas says that the light must be on totransmit data, but it can be reduced to the point where it appears to be offand still work.) Availability: Everywhereyou see a light bulb--in your home or workplace, in an aircraft, on yoursmartphone--you are seeing a potential source for high-speed data transmission. Security: Sincelight doesn't penetrate walls, transferred data is more secure. It's availableonly to users in the same room. Sincethe technology is in development, there are a number of downsides that limituse. For now, Li-Fi does not work outdoors. Light pollution may alsopresent problems. But Haas embraces these challenges. He envisions a world whereLED lights could replace the large, ugly radio frequency antennas we see today;where those lights could be used for traffic control and to providecommunication between cars to prevent accidents; and where millions ofstreetlamps across the world could be used as free data access points. Is it anything more than a dream? We may find out soon enough:) :) :) :) LiFi vs WiFi : The basic difference

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