  LoRaWAN is a promising IoT access technology that is growing in popularity.
This study addresses the issue of duplicate packets forwarding by LoRaWAN
gateways and proposes a novel forwarding scheme to eliminate forwarding
duplicate packets by utilizing inter-flow network coding. The proposed scheme
is distributed and requires no coordination between gateways. The proposed
scheme is evaluated under different network and traffic conditions. The results
show that substantial savings can be achieved in bandwidth leading to enhanced
scalability of the network without increasing outgoing traffic.
