FS Backscatter Communication
, Deepak Ganesan, Ph.D.
The Frequency-Shifted (FS) Backscatter invention promotes practical backscatter communication for ultra-low power on-body sensors by leveraging radios on existing smart phones and wearables. This invention addresses the self-interference from the wireless carrier without relying on built-in capability to cancel or reject the carrier interference. Utilizing this invention, the tag shifts the carrier signal to an adjacent non-overlapping frequency band and isolates the spectrum of the backscatter signal from the spectrum of the primary signal to enable more robust decoding.
• Can shift signal 20 MHz while only consuming microwatts of power • Uses convention electronic devices (e.g. smartphones and wearables) as transmitters and receivers • Communicate with WiFi and Bluetooth radios at a range of 5m and a bitrate of 50 kbps
• Continuous data streaming from on-body sensors • Multi-carrier communications • Healthcare/eldercare
Deepak Ganesan is a Professor in the Department of Computer Science at UMass Amherst. His research focuses on ultra-low power wireless communication via backscatter, novel platforms and algorithms for mobile and wearable health sensing, learning and inference on multi-modal sensor data, and micro-powered sensors. Dr. Ganesan leads the UMass Sensors Research Group.
Available for Licensing and/or Sponsored Research
UMA 16-055
Patent Pending
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