@article{wang2016green,
  title = {Green Industrial Internet of Things Architecture: An Energy-Efficient Perspective}
  author = {Wang, Kun and Wang, Yihui and Sun, Yanfei and Guo, Song and Wu, Jinsong},
  journal = {IEEE Communications Magazine},
  url = {http://ieeexplore.ieee.org/document/7785890/},
  year = {2016}
}