@ARTICLE {31913,
author={L.  Yandja and M.  Fourati and L.  Chaari and J. P. Barraca},
doi={10.1109/ACCESS.2021.3135080},
journal={IEEE Access},
title={Routing Strategies for LoRaWAN Multi-hop Networks: A Survey and an SDN-based Solution for Smart Water Grid},
year={2021},
month={December},
volume={9},
number={0},
pages={168624-168647},
ISSN={2169-3536}
}