Kailai Cui

Kailai Cui

Resource-efficient multimodal AI systems through task-aware inference and serving

UWB-Based Localization of Smartphones inside a Vehicle to Prevent Distracted Driving

Published in ACM/IEEE SenSys 2026, 2026

Recommended citation: Kailai Cui, Ke Sun, Kang G. Shin, "UWB-Based Localization of Smartphones inside a Vehicle to Prevent Distracted Driving," ACM/IEEE International Conference on Embedded Artificial Intelligence and Sensing Systems (SenSys), 2026. https://doi.org/10.1145/3774906.3800472

UWB-PTrac provides real-time, seat-level phone localization using existing UWB keyless-entry infrastructure with a single in-cabin, single-antenna anchor. It resolves spatial ambiguity through optimized anchor placement or a lightweight retrofit RF shield. City-driving tests achieved 96% driver-vs-other-seat classification accuracy with optimized anchor placement and 91% with the RF shield.