Towards practical metasurface deployment in 5G NR, NR-Surface is the first real-time reconfigurable NR-Compliant metasurface, operating at micro-watt regime for multi-year battery-lifetime.

Mosaic presents a vision-based end-to-end action recognition framework that intrinsically achieves data anonymity from the sensing stage and battery-free operation for blind spot-free continuous monitoring.

OmniScatter is a mmWave tag system that takes a big step towards massive IoT, by scaling up to millions of concurrent tags!

For the first time, SDR-Lite enables commodity WiFi to receive ambient (i.e., non-WiFi) signals. For example, drone signal. SDR-Lite lets typical WiFi to be used as unauthorized UAV detector, spectrum analyzer, and mobile IoT data collector.

GateScatter is the first backscatter-based gateway that converts IoT messages into WiFi packets, for pervasive Internet connectivity. GateScatter works with major commodity IoTs like Samsung SmartThings and Amazon Echo.

Safeguarding low power IoT (ZigBee) under heavy WiFi interference. This work enables seamless IoT operation even when hundreds of WiFi users are watching YouTube and playing online games.

Communication between different IoT technologies (Bluetooth and ZigBee) using only commercial devices. ZigBee smart lightbulb is controlled with Bluetooth smartphone.

We use commodity WiFi AP to coordinate WiFi and IoT devices, to better utilize the spectrum. This work demonstrates how existing systems (WiFi AP) assist emerging IoT.

OmniScatter: Extreme Sensitivity mmWave Backscattering Using Commodity FMCW Radar  (Best Paper Award, SIGMOBILE Research Highlight)

SuperSight: Sub-cm NLOS Localization for mmWave Backscatter (Best Paper Award)