EVENT DETAILS
Hosted by Professor Branden Ghena
We need affordable and innovative sensing to assist in tackling global-scale problems like sustainably feeding the next billion. RF backscatter systems such as RFID are well-known in the sensing community because of their low power consumption. This talk explores how we can leverage advances in low-power embedded systems to enable robust indoor/outdoor RF-backscatter sensing. The first portion of the talk will describe how we can leverage commodity indoor signals like WiFi to implement a backscatter-based wireless computer vision system. The second part focuses on an outdoor radar backscatter sensing system that uses RF to measure soil moisture with accuracy comparable to state-of-the-art commercial sensors, but at a fraction of the cost. The talk concludes with an overview of recent work on renewably powering outdoor sensor systems via energy harvested from non-traditional sources like microbes.
Colleen Josephson is an incoming Assistant Professor at UC Santa Cruz and a research scientist at VMware. Her research interests include wireless communication and sensing systems, with a focus on technologies to enable and improve sustainable practices. She is also co-chair of the GreenG Working Group within the Atis NextG Alliance, which aims to position North America as the global leader in environmental sustainability of future generations of wireless technology by reducing Next G technologies' energy consumption and environmental impact. Colleen completed her PhD in Electrical Engineering in 2020 at Stanford University, where she was advised by Sachin Katti and Keith Winstein. Before beginning her PhD, she worked at Cisco Meraki as a wireless engineer, and even before that she received her SB and MEng degrees from MIT. She is also a former Microsoft Research intern, a 2020 Rising Star in EECS, a finalist in the 2019 MIT Bay Area Research Slam, and a recipient of the Stanford Graduate, Schlumberger Innovation and D.E. Shaw Exploration fellowships.
TIME Thursday November 18, 2021 at 4:00 PM - 5:30 PM
LOCATION Tech A110, Technological Institute map it
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CONTACT Catherine Healey catherine.healey@northwestern.edu
CALENDAR Department of Electrical and Computer Engineering