Abstract: Wireless networks are ubiquitous and are playing an increasingly important role in our everyday lives. A lot of emerging applications heavily reply on and require an even more sophisticated Wi-Fi network. These applications include augmented reality, indoor navigation, gesture recognition, etc. One key component for the success of these applications is accurate localization. While GPS has achieved a great success in the outdoor environment, indoor localization at a sub-meter granularity remains challenging due to a number of factors, including the presence of strong multipath reflections indoors and the burden of deploying and maintaining additional location service infrastructure. The recent trend of dramatically increasing number of antennas and larger bandwidths at the indoor access point, brings us unique opportunities to improve the localization performance. Two indoor localization systems will be introduced in this talk. The first, ArrayTrack, is the first localization system hosted on Wi-Fi infrastructure to achieve an accuracy below 30 cm. ToneTrack is another system, which breaks the bandwidth size limit on time-based localization by combining information from adjacent channels.
Bio: Jie Xiong is an Assistant Professor in School of Information Systems at Singapore Management University. He received the Ph.D from the Department of Computer Science, 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 appears at INFOCOM '17, MobiCom '16, CoNEXT '16, UbiComp '16, MobiCom '15, CoNEXT '14 (Best Paper Award), MobiCom '14, MobiCom '13 and NSDI '13. He received the M.Sc. and B.Eng. degrees from Duke University and Nanyang Technological University respectively.
A reception will be held at 3:40pm in the atrium, outside the presentation room.