@inproceedings{ji2013efficient,
  title={An efficient indoor navigation scheme using RFID-based delay tolerant network},
  author={Ji, Hao and Xie, Lei and Yin, Yafeng and Lu, Sanglu},
  booktitle={2013 IEEE Global Communications Conference (GLOBECOM)},
  pages={183--188},
  year={2013},
  organization={IEEE}
}