A Novel RF Spectrum Monitoring Architecture for an Ultra-Low-Power Wi-Fi Geopositioning System
Wireless radio consumes the highest power in many systems and must be activated wisely to save power especially in battery-powered systems. Hence, gathering insight into the spectrum activity is needed to control the wireless radio. In this work, classic full-band Fast Fourier Transform (FFT) and sequential digital spectrum scanning systems are presented with their high energy consumption and latency drawbacks. A context-aware, multi-layer-duty-cycled, multi-channel, ultra-low-power analog spectrum monitoring architecture is proposed as a solution to the drawbacks of the classic systems with the emphasis on Wi-Fi signal detection for a Basic Service Set Identifier (BSSID)-based geopositioning shipment tracking application. The proposed architecture provides more than 3 order of magnitude power saving in detection compared to the classic sequential spectrum scanning while maintaining the full functionality under vast variety of operating conditions.
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Pekcokguler, N., Maman, M., Burg, A., Dehollain, C., & Morche, D. (2021, January 1). A Novel RF Spectrum Monitoring Architecture for an Ultra-Low-Power Wi-Fi Geopositioning System. 2021 19Th Ieee International New Circuits and Systems Conference (Newcas), IEEE International New Circuits and Systems Conference. 19th IEEE International New Circuits and Systems Conference (NEWCAS), ELECTR NETWORK. https://doi.org/10.1109/NEWCAS50681.2021.9462768
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WOS:000713009500039
2021-01-01
New York
978-1-6654-2429-5
IEEE International New Circuits and Systems Conference
REVIEWED
EPFL
| Event name | Event place | Event date |
ELECTR NETWORK | Jun 13-16, 2021 | |