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In this paper, the authors systematically investigate different factors and their effects on the wireless transmission properties using a full-factorial experimental design of a wireless sensor network in a real-world indoor environment. They quantify the impact of primary factors such as the wireless channel, physical position, transmission power, and their interactions on the Received Signal Strength (RSS). While some of their results support conventional assumptions, this paper also shows that there are many properties which are in contrast to existing findings. For example, there is no significant correlation in the measured RSS between different but equally-distant transmitters, yet the correlation coefficient between two transmitters is above 94%.
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