Passive Wi-Fi technology saves 10,000 times more energy than usual

Scientists have successfully discovered how to use the battery-saving Wi-Fi network for phones 10,000 times more than conventional Wi-Fi networks today.

According to Slash Gear, a group of researchers from Washington University (USA) has created a breakthrough when successfully developing passive Wi-Fi network (passive Wi-Fi) allowing the use of power on the device. Mobile is 10,000 times less than traditional Wi-Fi networks.

Technology capable of transmitting data Wi-Fi signal reaches 11 Mbps.

The passive Wi-Fi network also saves 1,000 times more energy than popular connection methods such as Bluetooth LE or Zigbee. Technology capable of transmitting Wi-Fi signal data reaches 11 Mbps and can be easily decoded with devices that support Wi-Fi connectivity. While 11 Mbps may be considered slower than current Wi-Fi standards, it is still 11 times faster than Bluetooth.

The new technology could help save battery power for wireless devices and help the Internet of Things platform (IoT) "take off" in the near future by eliminating some energy obstacles. The team eliminated analog signal components that are power-consuming and retain only a digital signal component that consumes less electricity to generate energy-efficient transmission operations.

In the experiment, the team found that passive Wi-Fi sensors can communicate at distances up to 30 meters. In the meantime, passive devices only broadcast backwards by reflecting the original signal, thus significantly saving energy consumption.

Introducing the idea of ​​passive Wi-Fi network.

This new technology is expected to make home automation and smart home applications more useful than ever. According to research co-author and professor of computer science and electrical engineering, Joshua Smith said, although smart home technology currently uses mostly Wi-Fi, in many cases, Wi-Fi receptors Dynamic will be the most effective and economical solution.

"Right now we can create Wi-Fi that consumes about 10 mW of power and works better than Bluetooth and ZigBee. And you wouldn't imagine that Wi-Fi is now available. for everything, " Smith asserts.