Developed by EE and CSE researchers, the Power Over Wi-Fi (PoWiFi) system has been named one of the most innovative technologies of the year by Popular Science. With thousands of nominations, 100 were selected for inclusion in the magazine’s annual Best of What’s New 2015 awards.
Led by EE & CSE Professor Joshua Smith and CSE Professor and EE Adjunct Faculty Member Shyam Gollakota, the research team includes EE Ph.D. students Vamsi Talla, Bryce Kellogg and Saman Naderiparizi, as well as CSE post-doc Benjamin Ransford.
Able to harvest energy from Wi-Fi signals, the PoWiFi system is the first of its kind to deliver power and work with existing Wi-Fi hardware, without affecting the network’s performance. PoWiFi has the potential to impact the Internet of Things, which connects everyday devices to the Internet, such as thermostats and appliances, and is currently limited by communication and power issues.
Proving the effectiveness of the system, the researchers used energy from Wi-Fi signals to power a battery free temperature sensor and camera sensor at distances of up to 20 feet. They also wirelessly recharged batteries at distances of up to 28 feet. To demonstrate that their prototype can successfully be powered wirelessly in a real-world setting, the researchers tested their system in six homes.
Congrats to Vamsi, Bryce, Saman, Benjamin, Joshua and Shyam!