Recently, we came across this great paper ( ) about modeling the impact of multipath on Semtech's LoRa modulation. Specifically, it models Rayleigh flat fading, which is observed in urban and indoor use-cases. We had just finished testing in an environment with heavy multipath interference (an airport parking garage). The results were so one-sided that we wanted to find any research that might either validate our results or, potentially, shed light on something we were doing wrong in the experiment. Fortunately, we found just the paper, and it corroborates perfectly with the experimental results we achieved. link, free PDF LoRaWAN vs. Haystack’s LoRa XR2 The presentation below describes our findings. If you’re too impatient to read it, here are the basic findings: yielded an observable 30dB sensitivity improvement over LoRaWAN in the Rayleigh flat fading environment, and this matches the theoretical model.In such environments, system integrators can use higher data rates with Haystack XR2 to trade-off QoS vs. energy efficiency vs. channel density in such urban or indoor environments. Haystack XR2 By JP Norair Get the latest about Haystack by signing up for our newsletter . here Previously published at https://medium.com/@patburns/lora-in-multipath-theory-vs-experiment-fae2ccd10242
