"Energy Harvesting Active Networked Tags (EnHANTs)"

Gil Zussman, Associate Professor, EE, Columbia University

April 26th (Friday), 1:00pm
Harold Frank Hall, Room 4164 (ECE Conference Room)

We discuss a new type of wireless devices in the domain between RFIDs and sensor networks – Energy Harvesting Active Networked Tags (EnHANTs – Future EnHANTs will be small, flexible, and self-powered devices that can be attached to objects that are traditionally not networked (e.g., books, toys, clothing), thereby providing the infrastructure for various Internet-of-Things tracking applications. We describe the paradigm shifts associated with the underlying enabling technologies. Then, we present the results of an indoor light energy measurement campaign and of a kinetic energy study that have been conducted in order to characterize the energy availability for EnHANTs. We discuss low complexity energy-harvesting-adaptive algorithms which aim to allocate resources uniformly in respect to time and to determine energy and data rate allocations for a node and for a link. Finally, we present the design considerations for the EnHANT prototypes which harvest indoor light energy using custom organic solar cells, communicate and form multihop networks using ultralow-power Ultra-Wideband Impulse Radio (UWB-IR) transceivers, and adapt their communications and networking patterns to the energy harvesting and battery states. We also describe a small scale EnHANTs testbed that uniquely allows evaluating different algorithms with trace-based light energy inputs and discuss experimental results.

Based on joint works with A. Bernstein, M. Gorlatova, R. Margolies, A. Wallwater, and the groups of P. Kinget, J. Kymissis, and L. Carloni (Columbia).

About Gil Zussman:

photo of gil zussman Gil Zussman received the Ph.D. degree in Electrical Engineering from the Technion – Israel Institute of Technology in 2004. Between 2004 and 2007 he was a Postdoctoral Associate at MIT. Since 2008 he has been with the Department of Electrical Engineering at Columbia University where he is currently an Associate Professor. His research interests are in the area of wireless networks and network resilience. He has been an associate editor of IEEE Transactions on Wireless Communications and Ad Hoc Networks, and the TPC co-chair of IFIP Performance 2011. He is a co-recipient of 5 best paper awards including the ACM SIGMETRICS 2006 Best Paper Award and the 2011 IEEE Communications Society Award for Advances in Communication. He was the PI of a team that won the 1st place in the 2009 Vodafone Americas Foundation Wireless Innovation competition and is a recipient of the Fulbright Fellowship, the Marie Curie Outgoing International Fellowship, the DTRA Young Investigator Award, and the NSF CAREER Award.

Hosted by: Prof. Volkan Rodoplu