@ARTICLE{8017556,  author={S. {Bera} and S. {Misra} and A. V. {Vasilakos}},  journal={IEEE Internet of Things Journal},   title={Software-Defined Networking for Internet of Things: A Survey},   year={2017},  volume={4},  number={6},  pages={1994-2008},  doi={10.1109/JIOT.2017.2746186}}