Boffins in South Korea claim to have developed an energy-efficient system for low-power Internet of Things (IoT) applications that uses "backscattering" to harvest energy from a wireless signal for its communications.
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Researchers at Pusan National University say they have developed a backscatter communication system that is 40 percent more efficient than conventional methods, and could be useful in devices such as IoT sensors for smart home applications and wearables.
A paper detailing their findings was published in Volume 11, Issue 12 of the IEEE Internet of Things Journal on June 15.
Backscatter communication refers to a system that uses energy from a transmitted wireless signal to modulate and reflect signals back to their origin. It has been compared to how RFID (radio frequency identification) tags work, as well as contactless payment cards, which use energy from the reader unit to operate.
