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Path Loss Exponent Influence on Distance Estimation between Wireless Sensor NodesBUTA, G. , COCA, E. , GRAUR, A.
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wireless sensor networks, received signal strength indication, distance estimation, path loss exponent, RF power level
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About this article
Date of Publication: 2010-02-27
Volume 10, Issue 1, Year 2010, On page(s): 110 - 115
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2010.01020
Web of Science Accession Number: 000275458900020
SCOPUS ID: 77954677262
Wireless Sensor Networks (WSN) are challenging and efficient in a large field of applications like object location or distance determination between sensor nodes. In this paper are presented some considerations concerning the method of distance estimation between WSN nodes using the RF power level received by one sensor node. The experimental determinations were made using a WSN system composed of ten wireless modules (one coordinator module and nine WSN nodes). The RF power level received by a sensor node was measured at variable distances, and the dBm values recorded were then used in the distance determination formula. The tests were made in a 3 meters semi-anechoic chamber - in order the results not to be affected by other radio frequency emissions from the surrounding environment - using a 20 Hz - 26.5 GHz EMI Test Receiver, a log-periodic antenna and RF cables.
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 N. I. Wei, Z.-X., Wang, "Indoor Location Algorithm Based on the Measurement of the Received Signal Strength", Higher Education Press and Springer-Verlag, 2006
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 Joe-Air Jiang, Cheng-Long Chuang, Chia-Pang Chen, Tzu-Shiang Lin, "A RSSI-based environmental-adaptive dynamic radiation power management for Wireless Sensor Networks", Circuits and Systems, APCCAS, 2008
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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
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