Sensing and Localization

Pioneering techniques to sense the world using radio signals from practical wireless networks of all kinds

PAWS' line of work in radio-based sensing and localization began with ArrayTrack, published at the 2013 USENIX NSDI Symposium, the first system to leverage wireless local area network MIMO, a communications technology, to sense the world at very fine granularity.

ArrayTrack was the first indoor location service in the world to achieve a median location accuracy of within 20 cm and sub-second responsiveness, without infrastructure beyond typical Wi-Fi access points, and inspired this line of work both at PAWS and beyond.

pseudospectra

[Image credit: J. Gjengset]

Research Article: MobiTagBot : Article

MobiTagBot is an RFID sorting robot that uses synthetic aperture radar techniques to achieve millimeter-level accuracy.
mobitagbot

Relevant Publications

line of sight paths
Xie, Yaxiong, Jie Xiong, Mo Li, and Kyle Jamieson. 2019. “MD-Track: Leveraging Multi-Dimensionality in Passive Indoor Wi-Fi Tracking”. In The 25th Annual International Conference on Mobile Computing and Networking (MobiCom). doi:10.1145/3300061.3300133.
Shangguan, Longfei, and Kyle Jamieson. 2016. “The Design and Implementation of a Mobile RFID Tag Sorting Robot”. In Proceedings of the 14th Annual International Conference on Mobile Systems, Applications, and Services, 31–42. ACM. doi:10.1145/2906388.2906417.
polar draw samples!
Shangguan, Longfei, and Kyle Jamieson. 2016. “Leveraging Electromagnetic Polarization in a Two-Antenna Whiteboard in the Air”. In Proceedings of the 12th International on Conference on Emerging Networking EXperiments and Technologies, 443–456. ACM. doi:10.1145/2999572.2999601.
Xie, Yaxiong, Jie Xiong, Mo Li, and Kyle Jamieson. 2016. “XD-Track: Leveraging Multi-Dimensional Information for Passive Wi-Fi Tracking”. In Proceedings of the 3rd Workshop on Hot Topics in Wireless, 39–43. ACM. doi:10.1145/2980115.2980127.
Xiong, Jie, Karthikeyan Sundaresan, and Kyle Jamieson. 2015. “Tonetrack: Leveraging Frequency-Agile Radios for Time-Based Indoor Wireless Localization”. In Proceedings of the 21st Annual International Conference on Mobile Computing and Networking, 537–549. ACM. doi:10.1145/2789168.2790125.
NUC AP test
Gjengset, Jon, Jie Xiong, Graeme McPhillips, and Kyle Jamieson. 2014. “Phaser: Enabling Phased Array Signal Processing on Commodity Wi-Fi Access Points”. In Proceedings of the 20th Annual International Conference on Mobile Computing and Networking, 153–164. ACM. doi:10.1145/2639108.2639139.
pseudospectrum combining
Xiong, Jie, and Kyle Jamieson. 2013. “ArrayTrack: A Fine-Grained Indoor Location System”. In Proceedings of the 10th USENIX Conference on Networked Systems Design and Implementation.