We are rapidly moving toward a pervasively-sensed wireless world where most of our interactions with machines will be accomplished via gestures, and machines will be able to recognize human activities and pinpoint human/object locations. Wireless sensing, tracking, and drawing technologies are among the key enabling factors in this pervasively-sensed world. In this talk, I will present our recent works on RFID based sensing systems. The first work is our tag order tracking systems - STPP, which leverages the spatial-temporal phase correlation to determine the tag order in 2D space without locating each tag a prior. The second work, MobiTagbot, improves the tag ordering accuracy to a great extent by minimizing the impact of multi-path effect indoors. The third work, PolarDraw, is a RFID tracking system that enables in-air writing with only two antenna. As an extension, I will also talk about our single antenna based human-object interaction system.
Longfei Shangguan is currently a Postdoc research associate at Princeton University, working with Prof. Kyle Jamieson. He obtained his Ph.D and MPhil degree from the Hong Kong University of Science and Technology in 2015 and 2013, respectively, and Bachelor degree from Xidian University in 2011. His research centers in RFID system, IoT and Wireless Networks. He has published more than 20 papers in highly refereed conferences such as NSDI, MobiSys, SenSys, Ubicomp and Infocom.