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Experiments for Evaluating Sensors' Precision in Wireless Sensor Networks

Author(s): Ronald Beaubrun | Siarhei Smolau

Journal: International Journal of Ad Hoc, Sensor & Ubiquitous Computing
ISSN 0976-2205

Volume: 3;
Issue: 3;
Start page: 105;
Date: 2012;
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Keywords: Analysis of variance (ANOVA) | received signal strength indicator (RSSI) | wireless sensor networks (WSN).

In this paper, we propose a set of experiments for evaluating sensors’ precision in measuring receivedsignal strength indicator (RSSI) in wireless sensor networks (WSN). More specifically, a WSN application is implemented for collecting RSSI measurements in different conditions. The application consists of two parts: an experiment control script which runs on a computer, and an experiment sensor firmware which runs on each WSN node. Statistical analysis of variance (ANOVA) is performed to determine if the WSN nodes used are manufactured with enough precision. Obtained results demonstrate that the differences between the sensors are insignificant, even if the RSSI measurements have significant variation.
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