LPWAN Fragmentation Header
Carles Gómez, Josep Paradells, Jon Crowcroft · 2016
LPWAN technologies are characterized by a very limited data unit and/ or payload size, often one order of magnitude below the one in IEEE 802.15.4. However, many such technologies do not support layer 2 fragmentation. The 6LoWPAN fragmentation header defined in RFC 4944 represents very high overhead for LPWAN technologies, and it even does not support transporting IPv6 datagrams that require fragmentation over layer 2 technologies of a maximum payload size below 13 bytes. This specification defines an optimized fragmentation header for LPWAN.