EPSRC Energy Harvesting Network

Columbia University (EnHANTs Project )

Address: 500 W 120 St. Room 1300, New York, NY 10027
URL: http://enhants.ee.columbia.edu

In this project we are developing Energy-Harvesting Active Networked Tags (EnHANTs). EnHANTs are small, flexible, and self-reliant (in terms of energy) devices that can be attached to objects that are traditionally not networked (e.g., books, clothing, and produce), thereby providing the infrastructure for various novel tracking applications. Examples of these applications include locating misplaced items, continuous monitoring of objects (items in a store, boxes in transit), and determining locations of disaster survivors.

Recent advances in ultra-low-power wireless communications, ultra-wideband (UWB) circuit design, and organic electronic harvesting techniques will enable the realization of EnHANTs in the near future. In order for EnHANTs to rely on harvested energy, they have to spend significantly less energy than Bluetooth, Zigbee, and IEEE 802.15.4a devices. Moreover, the harvesting components and the ultra-low-power physical layer have special characteristics whose implications on the higher layers have yet to be studied (e.g., when using ultra-low-power circuits, the energy required to receive a bit is an order of magnitude higher than the energy required to transmit a bit).

The objective of the project is to design hardware, algorithms, and software to enable the realization of EnHANTs. This interdisciplinary project includes 5 PIs in the departments of Electrical Engineering and Computer Science at Columbia University with expertise in energy-harvesting devices and techniques, ultra-low power integrated circuits, and energy efficient communications and networking protocols.
Relevant White Papers, Reports and Case Studies
Maria Gorlatova, Michael Zapas, Enlin Xu, Matthias Bahlke, John Kymissis, (2011) Dataset of indoor light energy measurement traces. In: Public dataset, Columbia University, New York City, 2011.

Dan Rubenstein

Position: Associate Professor
E-Mail: danr [AT] cs.columbia.edu

Dan Rubenstein is an Associate Professor in Departments of Computer
Science at Columbia University. He
received a B.S. degree in mathematics from M.I.T., an M.A. in math
from UCLA, and a PhD in computer science from University of
Massachusetts, Amherst. His research interests are in network
technologies, applications, and performance analysis, with a recent
emphasis on resilient, secure and ultra-low power networking. He is
an editor for IEEE/ACM Transactions on Networking, and has
received an NSF CAREER Award, IBM Faculty Award, the Best Student
Paper award from the ACM SIGMETRICS 2000 conference, and Best Paper
awards from the IEEE ICNP 2003 Conference and ACM CoNext 2008 Conference.

Gil Zussman

Position: Assistant Professor
E-Mail: gil [AT] ee.columbia.edu
Telephone: +1-212-854-8670

Relevant Publications
Maria Gorlatova, Aya Wallwater, Gil Zussman, (2011) Networking Low Power Energy Harvesting Devices: Measurements and Algorithms. In: IEEE INFOCOM'11, Shanghai, China, April 2011.

Maria Gorlatova, Peter Kinget, Ioannis Kymissis, Dan Rubenstein, Xiaodong Wang, Gil Zussman, (2010) Energy Harvesting Active Networked Tags (EnHANTs) for Ubiquitous Object Networking. In: IEEE Wireless Communications, Vol. 17, No. 6, pp. 18-25, Dec. 2010.


Position: PhD student
E-Mail: mariagor [AT] yahoo.com

I am a second year PhD student at Columbia University. I received my Bachelor and Master degrees in Electrical Engineering from University of Ottawa, Canada. Prior to joining Columbia's PhD program, I worked as a research scientist at Defence Research and Development Canada (DRDC) and at Telcordia Technologies. At DRDC and Telcordia Technologies my research was mainly focused on security of mobile wireless ad hoc networks. In my PhD research, I am working on developing networking, communication, and energy-management protocols for ultra-low-power energy-harvesting devices.

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