Enhancing RSSI-Based Tracking Accuracy in Wireless Sensor Networks

被引：48

作者：

Blumrosen, Gaddi ^{[1
]}

Hod, Bracha ^{[1
]}

Anker, Tal ^{[1
]}

Dolev, Danny ^{[1
]}

Rubinsky, Boris ^{[2
]}

机构：

[1] Hebrew Univ Jerusalem, Sch Comp Sci & Engn, IL-91905 Jerusalem, Israel

[2] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA

来源：

ACM TRANSACTIONS ON SENSOR NETWORKS | 2013年 / 9卷 / 03期

关键词：

Algorithms; Experimentation; Performance; Wireless sensor network; received signal strength indicator; tracking; RADIO SIGNAL; LOCALIZATION; IMPACT;

D O I：

10.1145/2480730.2480732

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

080201 [机械制造及其自动化];

摘要：

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.

引用

页数：28

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