@article{TPDS2015Xie,
  title={Efficient Protocols for Collecting Histograms in Large-scale RFID Systems},
  author={Xie, Lei and Han, Hao and Li, Qun and Wu, Jie and Lu, Sanglu},
  journal={IEEE Transactions on Parallel and Distributed Systems},
  volume={26},
  number={9},
  pages={2421--2433},
  year={2015},
  publisher={IEEE}
}