Researchers at the Seattle campus have found a way to make a Wi-fi transmitter that uses 10,000 times less power than traditional Wi-Fi systems and 1,000 times less than existing low-power wireless technologies. It can be used by existing devices out of the box, with little to no need for extra setup per device. This technology has been attempted in the past, but limitations usually involved a dramatic drop in signal quality over a short distance or expensive, custom hardware that did not work with existing devices.
This technology, tentatively called “passive Wi-Fi,” is made possible by separating the digital elements of the transmitter (handling such tasks as encoding and encryption) and the analog (which includes the actual antenna that transmits data). This implementation creates a network that is perfectly suited for the Internet of Things.
As anyone who uses UW Bothell’s Wi-Fi knows, our internet connection is excellent and our network is extremely well-maintained. However, when infrastructure replacements or upgrades are considered in the future, admins would do well to look at the technology that the UW has pioneered for further reducing our energy usage.
For more information, see the Campus Technology blog post here.