LoRaWAN Data Fragmentation

Data Fragmentation in LoRaWAN allows to send a large file to an end-device. Even if LoRaWAN targets low bit rate application, we might need sometimes to send a larger file. FUOTA (Firmware Update Over the Air) is the main application of Data Fragmentation. The purpose of this application layer is to use an algorithm to transfer the entire file with redundancy. Even if all bytes are not received, then, the algorithm can find the original message.
We use a STM32WL, a LoRaWAN Gateway and Actility Community Network Server. But it works with TTN or any other Network Server.
You can find more information:
In the eBook "LoRaWAN advanced" available for free here [ https://www.univ-smb.fr/lorawan/en/fr... ]
Open source Dashboard server for Data Fragmentation [ https://github.com/SylvainMontagny/fu... ]
STM32WL Firwmware [ https://github.com/SylvainMontagny/ST... ]