Battery-Free 802.15.4 Receiver
| Autor: | Carlos Pérez-Penichet, Ambuj Varshney, Claro Noda, Thiemo Voigt |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Battery (electricity)
SIMPLE (military communications protocol) Computer science business.industry Local oscillator ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS 020208 electrical & electronic engineering Transmitter Detector 02 engineering and technology Thresholding Signal 0202 electrical engineering electronic engineering information engineering ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS 020201 artificial intelligence & image processing business Wireless sensor network Computer hardware |
| Zdroj: | IPSN |
| DOI: | 10.1109/ipsn.2018.00045 |
| Popis: | We present the architecture of an 802.15.4 receiver that, for the first time, operates at a few hundred microwatts, enabling new battery-free applications. To reach the required micro-power consumption, the architecture diverges from that of commodity receivers in two important ways. First, it offloads the power-hungry local oscillator to an external device, much like backscatter transmitters do. Second, we avoid the energy cost of demodulating a phase-modulated signal by treating 802.15.4 as a frequency-modulated one, which allows us to receive with a simple passive detector and an energy-efficient thresholding circuit. We describe a prototype that can receive 802.15.4 frames with a power consumption of 361 μW. Our receiver prototype achieves sufficient communication range to integrate with deployed wireless sensor networks (WSNs). We illustrate this integration by pairing the prototype with an 802.15.4 backscatter transmitter and integrating it with unmodified 802.15.4 sensor nodes running the TSCH and Glossy protocols. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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