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In this paper, the authors propose a set of experiments for evaluating sensors' precision in measuring Received Signal 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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