Leveraging LoRa Spreading Factor Detection to Enhance Transmission Efficiency

Abstract

Internet of things (IoT) is considered as the next technological revolution. Therefore, many solutions are developed either in free, i.e. ISM bands or in non free bands. However, if the IoT growth forecasts are confirmed by 2020, the collisions between packets will multiply and thus degrade the system spectral and energy efficiencies. The LoRa modulation is one of the most popular solutions used in free bands. Based on the LoRa PHY layer principle, we propose in this paper an architecture able to detect the spreading factor and we show how this can enhance the communication efficiency.