Enhancing RSSI-based tracking accuracy in wireless sensor Networks

Gaddi Blumrosen, Bracha Hod, Tal Anker, Danny Dolev, Boris Rubinsky

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

In recent years, the demand for high-precision tracking systems has significantly increased in the field of Wireless Sensor Network (WSN). A new tracking system based on exploitation of Received Signal Strength Indicator (RSSI) measurements in WSN is proposed. The proposed system is designed in particular for WSNs that are deployed in close proximity and can transmit data at a high transmission rate. The close proximity and an optimized transmit power level enable accurate conversion of RSSI measurements to range estimates. Having an adequate transmission rate enables spatial-temporal correlation between consecutive RSSI measurements. In addition, advanced statistical and signal processing methods are used to mitigate channel distortion and to compensate for packet loss. The system is evaluated in indoor conditions and achieves tracking resolution of a few centimeters which is compatible with theoretical bounds.

Original languageEnglish
Article number2480732
JournalACM Transactions on Sensor Networks
Volume9
Issue number3
DOIs
StatePublished - May 2013
Externally publishedYes

Keywords

  • Received signal strength indicator
  • Tracking
  • Wireless sensor network

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