On the Advantage of Coherent LoRa Detection in the Presence of Interference

  title={On the Advantage of Coherent LoRa Detection in the Presence of Interference},
  author={Orion Afisiadis and Sitian Li and Joachim Tapparel and Andreas Peter Burg and Alexios Balatsoukas-Stimming},
  journal={IEEE Internet of Things Journal},
It has been shown that the coherent detection of long range (LoRa) signals only provides marginal gains of around 0.7 dB on the additive white Gaussian noise (AWGN) channel. However, ALOHA-based massive Internet-of-Things systems, including LoRa, often operate in the interference-limited regime. Therefore, in this work, we examine the performance of the LoRa modulation with coherent detection in the presence of interference from another LoRa user with the same spreading factor. We derive… 

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