Fig. 14
From: Mobile device-based Bluetooth Low Energy Database for range estimation in indoor environments

Curve fitting based on Path-loss model and distance estimation using the RSS values, smoothed with a moving average filter, of the Config. 01 A collected with the Device 02 (receiver). (a) Results of the Device 01 as Transmitter, (b) Results of the Device 03 as Transmitter, (c) Results of the Device 04 as Transmitter, and (d) Results of the Device 05 as Transmitter.