A Maximum-Likelihood-based Multi-User LoRa Receiver Implemented in GNU Radio

no code implementations • 15 Dec 2020 • Mathieu Xhonneux, Joachim Tapparel, Orion Afisiadis, Alexios Balatsoukas-Stimming, Andreas Burg

LoRa is a popular low-power wide-area network (LPWAN) technology that uses spread-spectrum to achieve long-range connectivity and resilience to noise and interference.

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

no code implementations • 1 Oct 2020 • Orion Afisiadis, Sitian Li, Andreas Burg, Alexios Balatsoukas-Stimming

We also compare the performance of LoRa with coherent and non-coherent receivers and we show that the coherent detection of LoRa is significantly more beneficial in interference scenarios than in the presence of only AWGN.

An Open-Source LoRa Physical Layer Prototype on GNU Radio

1 code implementation • 19 Feb 2020 • Joachim Tapparel, Orion Afisiadis, Paul Mayoraz, Alexios Balatsoukas-Stimming, Andreas Burg

LoRa is the proprietary physical layer (PHY) of LoRaWAN, which is a popular Internet-of-Things (IoT) protocol enabling low-power devices to communicate over long ranges.

Signal Processing

A Low-Complexity LoRa Synchronization Algorithm Robust to Sampling Time Offsets

no code implementations • 24 Dec 2019 • Mathieu Xhonneux, Orion Afisiadis, David Bol, Jérôme Louveaux

Using this model, we propose a new estimator for the sampling time offset.