Within the framework of the implementation of a wireless network of nodes under the IEEE802.15.4/Zigbee standard, the values obtained from experimental measurements of power as a function of distance between nodes in free space are analyzed. A propagation loss model is proposed and a statistical analysis is made to determine the reliability of the prediction of the distance between nodes as a function of the power measured at the receiver. This analysis confirms that the predictions obtained from the proposed model and from widely used models, are not appropriate for determining, with a high degree of certainty, the distance between transmitter and receiver due to the variability of the data.
Wireless Sensor Network, Prediction methods, Outdoor, Zigbee, Channel models, Propagation.
Héctor Kaschel, Gustavo Quezada, Ricardo Vega, Luis Sanchez, José Mardones, "Determination of the Reliability Interval of Outdoor Channel Model in 802.15.4/ZigBee Networks", Studies in Informatics and Control, ISSN 1220-1766, vol. 20(2), pp. 187-192, 2011. https://doi.org/10.24846/v20i2y201111
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