1. Herrero, R.: Fundamentals of IoT Communication Technologies. Textbooks in Telecommunication Engineering. Springer, Berlin (2021). https://books.google.com/books?id=k70rzgEACAAJ
2. Telecommunication Standardization Sector of ITU: ITU-T G.9959: short range narrow-band digital radiocommunication transceivers—PHY, MAC, SAR and LLC layer specifications. Tech. rep., International Telecommunication Union (2015)
3. Al-Sarawi, S., Anbar, M., Alieyan, K., Alzubaidi, M.: Internet of Things (IoT) communication protocols: review. In: 2017 8th International Conference on Information Technology (ICIT), pp. 685–690 (2017)
4. Farrell, S.: Low-Power Wide Area Network (LPWAN) Overview. RFC 8376 (2018). https://doi.org/10.17487/RFC8376. https://rfc-editor.org/rfc/rfc8376.txt
5. Ferré, G., Simon, E.P.: An introduction to Sigfox and LoRa PHY and MAC layers (2018). https://hal.archives-ouvertes.fr/hal-01774080. Working paper or preprint