Dimitrios Koutsonikolas, Assoc. Professor at the Computer Science and Engineering Department of University at Buffalo, The State University of New York, delivered a talk entitled 'Enabling Motion Detection on Commodity WiFi Devices using PHY Layer Information', at the Technical University of Crete on November 3rd, 2017.
Client motion detection in WLANs has the potential to both improve protocol performance and enable a number of novel applications. In this talk, I will discuss our work on leveraging wireless signals to enable human motion detection at different granularities on commodity WiFi devices. In the first part of the talk, I will present a scheme for detecting and classifying client mobility on the access point side by leveraging Channel State Information (CSI) and Time-of-Flight (ToF), and I will demonstrate how mobility-awareness can improve the performance of a number of wireless protocols. In the second part of the talk, I will introduce WiDraw, the first hand motion tracking system based on commodity WiFi cards. WiDraw harnesses the Angle-of-Arrival (AoA) values of incoming wireless signals at the mobile device to track the user’s hand trajectory without requiring the user to touch the device or use any external hardware. Using WiDraw, a user can draw arbitrary lines, curves, or even alphabetical characters, simply by hand motion in the air. I will also give an overview of other research projects in UB WiNS Lab.
Dimitrios Koutsonikolas received his Ph.D. in Electrical and Computer Engineering from Purdue University in August 2010 and he worked as a Postdoctoral Researcher at Purdue University from September to December 2010. He is currently an Associate Professor of Computer Science and Engineering at the University at Buffalo, The State University of New York. Dimitrios’ research interests lie broadly in experimental wireless networking and mobile computing, with a current focus on millimeter wave WLANs, LTE in unlicensed spectrum, smartphone energy consumption, and motion detection using wireless signals. He has published over 60 papers in top venues including MobiCom, CoNEXT, INFOCOM, ICDCS, HotNets, Transactions on Networking, Transactions on Mobile Computing, and Transactions on Wireless Communications. He has been regularly serving on the TPC of a number of networking conferences including MobiCom, INFOCOM, CoNEXT, ICDCS, and he has been on the Editorial Board of IEEE Transactions on Mobile Computing since February 2017. He is the general Co-Chair of EWSN 2018, and he has co-chaired a number of workshops in wireless networking. Dimitrios is a senior member of IEEE and a member of ACM and USENIX. He received the NSF CAREER Award in 2016, the CSE Early Career Faculty Teaching Award and the School of Engineering and Applied Sciences Early Career Researcher of the Year Award in 2015, and best paper awards in WCNC 2017 and SENSORCOMM 2007.