Code Division Multiple Access in Centimeter Accuracy Harmonic RFID Locating System

@article{Hui2017CodeDM,
  title={Code Division Multiple Access in Centimeter Accuracy Harmonic RFID Locating System},
  author={Xiaonan Hui and Yunfei Ma and Edwin Chihchuan Kan},
  journal={IEEE Journal of Radio Frequency Identification},
  year={2017},
  volume={1},
  pages={51-58}
}
In conventional passive UHF radio frequency identification (RFID) systems, time-division multiple access (TDMA) protocols are designed to counter inter-tag collision and multi-path interference for digital ID retrieval. However, high-accuracy (centimeter-level and below) localization to track multiple tags simultaneously still awaits a feasible solution. Overlap on the same carrier frequency of the downlink (from the reader to tags) and uplink (from tags to the reader) leads to severe self… CONTINUE READING

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