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MEES-WuR: Minimum Energy Coding with Early Shutdown for Wake-up Receivers

Abstract : One of the main challenges of wireless sensor networks is to maintain sensor nodes alive as long as possible, and a lot of efforts are dedicated to enable energy efficient communications. Wake-Up Receivers (WuRs) represent a promising solution for reducing the power consumption of nodes by enabling asynchronous communications. However, to achieve an ultra-low power consumption, WuRs circuits are kept as simple as possible, inducing a low sensitivity and thus a short range communication. As channel coding improves sensitivity, we propose to take advantage of the computing capability of the WuRs to apply a specific channel coding. The novelty resides in applying Minimum Energy coding with an Early Shutdown (MEES) of WuRs based on On-Off Keying (OOK) detectors. Both theoretical derivations and Monte-Carlo simulations show that the proposed coding scheme improves the reliability. Moreover, Moreover, MEES has been implemented on a non-coherent WuR prototype, and it is shown through experimentation that WuR reliability can be raised up to 22% compared to uncoded communications. Moreover, both the energy consumption and the latency can be significantly decreased thanks to the shutdown mechanism of MEES.
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https://hal.inria.fr/hal-03223796
Contributor : Matthieu Gautier Connect in order to contact the contributor
Submitted on : Tuesday, May 11, 2021 - 10:46:17 AM
Last modification on : Wednesday, May 4, 2022 - 11:25:03 AM

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  • HAL Id : hal-03223796, version 1

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Nour El Hoda Djidi, Matthieu Gautier, Antoine Courtay, Olivier Berder. MEES-WuR: Minimum Energy Coding with Early Shutdown for Wake-up Receivers. IEEE Transactions on Green Communications and Networking, IEEE, 2021. ⟨hal-03223796⟩

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