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Wireless Localization Based on RSSI Fingerprint Feature Vector

Author

Listed:
  • Aiguo Zhang
  • Ying Yuan
  • Qunyong Wu
  • Shunzhi Zhu
  • Jian Deng

Abstract

RSSI wireless signal is a reference information that is widely used in indoor positioning. However, due to the wireless multipath influence, the value of the received RSSI will have large fluctuations and cause large distance error when RSSI is fitted to distance. But experimental data showed that, being affected by the combined factors of the environment, the received RSSI feature vector which is formed by lots of RSSI values from different APs is a certain stability. Therefore, the paper proposed RSSI-based fingerprint feature vector algorithm which divides location area into grids, and mobile devices are localized through the similarity matching between the real-time RSSI feature vector and RSSI fingerprint database feature vectors. Test shows that the algorithm can achieve positioning accuracy up to 2–4 meters in a typical indoor environment.

Suggested Citation

  • Aiguo Zhang & Ying Yuan & Qunyong Wu & Shunzhi Zhu & Jian Deng, 2015. "Wireless Localization Based on RSSI Fingerprint Feature Vector," International Journal of Distributed Sensor Networks, , vol. 11(11), pages 528747-5287, November.
    • Handle: RePEc:sae:intdis:v:11:y:2015:i:11:p:528747
    DOI: 10.1155/2015/528747
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