Abstract:

Wireless networks are ubiquitous and playing increasingly important roles in our everyday lives. While wireless data communication has been a great success, interesting applications were proposed in the last few years hosted on Wi-Fi and RFID infrastructures including indoor localization, gesture recognition, respiration sensing and even material identification. Several systems will be introduced in this talk. The first, ArrayTrack, is an indoor localization system on Wi-Fi infrastructure to achieve an accuracy below 50 cm. ToneTrack is another system which breaks the bandwidth limit for time-based localization. TagScan is able to differentiate very similar liquids such as Pepsi and Coke with just wireless RFID signals while the last system Restrack hosted on cheap commodity RFID devices is not only able to monitor subtle human respiration accurately without any device attached to the target but also explain the deep reason while some locations have inherently better respiration sensing capability than other locations.

Bio: 

Jie Xiong is an Assistant Professor in College of information and Computer Sciences at University of Massachusetts (UMass), Amherst. He received his Ph.D from University College London in 2015. He was awarded the prestigious Google European Doctoral Fellowship in Wireless Networking for his doctoral studies. His Ph.D thesis won the 2016 British Computer Society Distinguished Dissertation Award runner-up. He has broad research interests in building practical wireless and mobile systems that bridge the gaps between theory and reality. His recent work appeared at MobiCom '17, CoNEXT '17, UbiComp '17, INFOCOM '17 and won the CoNEXT '14 Best Paper Award.