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Research turns LEDs into 10Mbps wireless

updated 02:55 pm EDT, Tue October 7, 2008

Smart LED Lighting

Boston University says that it has developed the basics of a new wireless data method that would allow computers and other devices to communicate in a room without the traditional weaknesses of Wi-Fi. Instead of using radio waves, the new approach would use an optical wireless system that would translate very rapid pulses in LED lighting into data signals. Each light would be capable of as much as 10Mbps and would effectively serve as an access point for a central network node by broadcasting to network devices with a line of sight.

The method would take care of many of the range issues of Wi-Fi by putting hotspots in one or more areas for a given room and would also be inherently more secure and stable by preventing the signal from filtering through walls. Lights would need to remain on for the wireless signal to work, but the inherent low-power nature of LEDs makes them more power-efficient compared to both incandescent light bulbs and to radio-based wireless.

Such networked lights could also be used wherever LEDs are needed; a car's LED headlights or taillights could warn other cars of a possible collision, while the coverage could also ensure that appliances get online without needing dedicated hardware.

When this smart lighting system would be available is unknown, as Boston University has just launched its program. Eventual commercial production is still considered likely.



By Electronista Staff
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Comments

  1. sujovian

    Fresh-Faced Recruit

    Joined: Jan 2008

    +2

    one way traffic?

    Both devices need to be able to transmit and receive for wifi communication to work. I wanna know how the laptop sends the request back to the light. I can just envision a return to 70's era computing with blinking lights on everything, only now the lights blink so fast, it just looks like they're always on. Argh, my poor strained eyes blinded by lights everywhere!

  1. Grrr

    Grizzled Veteran

    Joined: Jun 2001

    +2

    Its like..

    Its like Infra Red transfers all over again! I remember when many macs had that fitted.. I dont think many people used it though..

    Or is it a visible spectrum of light? In which case sending an MP3 file to someone on the other side of the room would give everyone in the middle of the room an epileptic fit?

  1. burger

    Forum Regular

    Joined: Sep 2000

    0

    Plants too?

    I want a wireless plant, too!

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