What’s Up With This Li-Fi Tech Stuff?

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Li-Fi is the next step after WiFi. It’s expected to provide the answer to Internet frequency congestion as usage keeps rising. Invented by Harold Haas of the University of Edinburgh in 2011, Li-Fi uses visible light sources to send data. It’s essentially a signal lamp that flashes on and off to represent 1s and 0s at ultra-rapid frequencies. It also allows amazing new capabilities. Such as these. Here’s a glimpse into the near-future.
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Dense Urban Environments

One advantage to light waves is that they don’t travel through walls. This means that no matter how big the city or how crowded the neighborhood, with Li-Fi your ‘interference pattern’ extends no further than the light in your room.
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Security

With Wi-Fi, the more connections there are, the slower the download speeds are for all. By contrast, with Li-Fi, the same light pool yields full access to high-speed sharing. This in turn yields 1,000 times greater speeds.
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Augmented Reality

If you’re in a museum or art gallery, each exhibit is typically illuminated by its own light source. Li-Fi-enabled lighting will provide localized information within that light pool, so that each visitor’s device can download information regarding the exhibit or object.
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Cellular Communication

With Li-Fi, there’d be no reason to have radio base stations. Common street lamps could provide both high speed data communication, even in daylight hours when they’re not shining.
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Underwater Communications

Radio waves are absorbed by water, inhibiting its effectiveness. But with light, communication is possible between divers, or submarines, or… you name it.
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Localized Advertising

When you sit or stand near a billboard, catalogs, coupons, advertising videos and more can be downloaded to your mobile device.
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EMI Sensitive Environments

While flying, Li-Fi lighting would provide high data rate connectivity for each passenger without creating electromagnetic interference with the plane’s flight deck.
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Sensitive Data

Since each location is individuated to the local light pool, data will be that much more private.
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Connectivity

Everything in the home can be interconnected, not just the phone, computer and TV. Household appliances like the refrigerator, the stove and the air conditioner can also be added to “the Grid.”
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Safety Environments

Using Li-Fi to share data in hazardous environments will make the use of mobile phones more feasible. Today they are typically prohibited as dangerous.
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Indoor Navigation

It will be possible to provide smart navigation through urban and indoor environments by identifying and connecting to each nearby light.
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Intelligent Transportation Systems

Li-Fi enabled LED headlights and tail-lights will allow automobiles to communicate anti-collision information and avoid accidents.
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