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Low Complexity LoRa Frame Synchronization for Ultra-Low Power Software-Defined Radios

Abstract : Low power wide area (LPWA) wireless networks based on the LoRa physical layer have attracted huge attention in recent years, both from industry and from academic researchers. While this rising popularity is due to this technology's demonstrated effectiveness and low cost, unfortunately, due to their complexity, the timing and frequency synchronization algorithms required to detect LoRa-modulated frames, in the context of minimum sampling rate optimum receivers, have received little attention. The aim of this paper is to fill this gap and describe how robust frame detection can be performed while focusing on minimal complexity implementations of the proposed algorithms. The ultimate goal is to propose frame detection techniques applicable to recently proposed ultra-low power software-defined receivers.
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Submitted on : Tuesday, March 3, 2020 - 10:07:51 AM
Last modification on : Sunday, June 26, 2022 - 12:32:37 AM
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Carolynn Bernier, François Dehmas, Nicolas Deparis. Low Complexity LoRa Frame Synchronization for Ultra-Low Power Software-Defined Radios. IEEE Transactions on Communications, Institute of Electrical and Electronics Engineers, In press, ⟨10.1109/TCOMM.2020.2974464⟩. ⟨cea-02280910v2⟩



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