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Journal Articles Sensors Year : 2022

A Novel Scheme for Discrete and Secure LoRa Communications

Abstract

In this paper, we present a new LoRa transceiver scheme to ensure discrete communications secure from potential eavesdroppers by leveraging a simple and elegant spread spectrum philosophy. The scheme modifies both preamble and payload waveforms by adapting a current state-of-the-art LoRa synchronization front-end. This scheme can also be seen as a self-jamming approach. Furthermore, we introduce a new payload demodulation method that avoids the adverse effects of the traditional cross-correlation solution that would otherwise be used. Our simulation results show that the self-jamming scheme exhibits very good symbol error rate (SER) performance with a loss of just 0.5 dB for a frequency spread factor of up to 10.

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hal-04005300 , version 1 (26-02-2023)

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Clément Demeslay, Roland Gautier, Philippe Rostaing, Gilles Burel, Anthony Fiche. A Novel Scheme for Discrete and Secure LoRa Communications. Sensors, 2022, 22 (20), pp.7947. ⟨10.3390/s22207947⟩. ⟨hal-04005300⟩
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