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  4. Spike-Based Sensing and Communication for Highly Energy-Efficient Sensor Edge Nodes
 
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conference paper

Spike-Based Sensing and Communication for Highly Energy-Efficient Sensor Edge Nodes

Roth, Florian
•
Bidoul, Noemie
•
Rosca, Teodor  
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January 1, 2022
2022 2Nd Ieee International Symposium On Joint Communications & Sensing (Jc&S)
2nd IEEE International Symposium on Joint Communications and Sensing (JC and S)

Highly energy-efficient wireless sensor nodes are a prerequisite for a sustainable operation of the Internet of things. Therefore, classical approaches for system design based on digital signal processing are not a viable solution, but system design has to follow entirely new paradigms. In this regard, we present a sensory system with analog spike-based signal processing for sensing and communication, encoding the sensory information in the pulse repetition frequency (PRF), getting rid of energy hungry A/D and D/A conversion. Our spiking sensory system can generate spikes from any conventional analog output sensor using a compact, highly tunable voltage-controlled oscillator based on vanadium dioxide, and an analog differentiator circuit performing the transmit pulse shaping. The sole conversion from analog to digital takes place at the base station followed by the estimation of the PRF, for which we compare a conventional receiver design consisting of an analog-to-digital converter (ADC) with the use of an integrate-and-fire time encoding machine (IFTEM). Results show the successful communication of sensory information from the edge node over an additive white Gaussian noise channel to the base station, with the IF-TEM outperforming the conventional ADC for a signal-to-noise ratio above 0 dB.

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Type
conference paper
DOI
10.1109/JCS54387.2022.9743501
Web of Science ID

WOS:000835384400005

Author(s)
Roth, Florian
•
Bidoul, Noemie
•
Rosca, Teodor  
•
Doerpinghaus, Meik
•
Flandre, Denis
•
Ionescu, Adrian M.  
•
Fettweis, Gerhard
Date Issued

2022-01-01

Publisher

IEEE

Publisher place

New York

Journal
2022 2Nd Ieee International Symposium On Joint Communications & Sensing (Jc&S)
ISBN of the book

978-1-6654-0579-9

Subjects

Engineering, Electrical & Electronic

•

Telecommunications

•

Engineering

•

spike-based signaling

•

analog processing

•

metal-to-insulator transition

•

a/d conversion

•

frequency estimation

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
NANOLAB  
Event nameEvent placeEvent date
2nd IEEE International Symposium on Joint Communications and Sensing (JC and S)

Seefeld, AUSTRIA

Mar 09-10, 2022

Available on Infoscience
August 29, 2022
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/190342
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