Passive Wi-Fi Uses 10,000 Times Less Power Than Standard; Likely to Replace Bluetooth

[dgstorm]

Engineers in the United States have made the final breakthrough for technology called Passive Wi-Fi. It's set to drive the revolution of the IoT (Internet of Things) and replace Bluetooth eventually. Passive Wi-Fi can generate an 11Mbps Wi-Fi connection, and although that doesn't seem very impressive, it does it with 10,000 times less power than standard Wi-Fi connections.

Additionally, the latest successful tests for Passive Wi-Fi had a range of 100 feet (30 meters) and consumed 1,000 times less energy, but with up to 11 times faster speeds than existing low energy standards, like Bluetooth and Zigbee.

Here's a quote with a few more details,

"To achieve such low-power Wi-Fi transmissions, the team essentially decoupled the digital and analog operations involved in radio transmissions.

The Passive Wi-Fi architecture assigns the analog, power-intensive functions - like producing a signal at a specific frequency - to a single device in the network that is plugged into the wall.

An array of sensors produces Wi-Fi packets of information using very little power by simply reflecting and absorbing that signal using a digital switch."

Joshua Smith, associate professor of computer science and engineering had this to say about the breakthrough, "Now that we can achieve Wi-Fi for tens of microwatts of power and can do much better than both Bluetooth and ZigBee, you could now imagine using Wi-Fi for everything."

It's amazing the magical things the wizards of engineering can create! Check out the video in the thread below for a demo of the new Passive Wi-Fi tech.

Source: gadgets.ndtv

 

[dgstorm]

Here's that video of Passive Wi-Fi in action:

 

[Sbeezynukka]

This could be awesome for future headunits and other audio gear for sending lossless audio wirelessly. This will kill the whole Bluetooth isn't good enough to send 1.4Mb of audio data arguments.


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