Exploiting Satellite Doppler for Reliable and Faster Data Download in IoT Satellite Networks

Low Earth Orbit (LEO) satellite constellations are enhancing IoT device connectivity with cost-effective, easily deployable picosatellites. These IoT satellite constellations bypass the need for Earth-based gateways, offering global coverage. This article delves into communication challenges encountered when deploying an IoT satellite network. Shifting the classic perspective on Doppler from a hindrance to an advantage, we present novel techniques leveraging Doppler shift for reliable packet detection and decoding, particularly in noisy environments. Integrated into our system, Spectrumize [1], these techniques offer a substantial performance boost compared to conventional methods.