With Adaptive Ranging, beacons are able to more accurately calculate the distance from known objects with the RSSI value they received and apply it to the RSSI valued received from devices in the area.  The initial experiment they conducted looked at the range accuracy of their algorithm against a non-adaptive trilateration method.  The condition parameters in the test (C1, C2, C3) are based on the room air conditions.  C1 = 25◦C, 999 hPa, 44% humidity, C2 = 30◦C, 999 hPa, 68% humidity, and C3 = 28◦C, 996 hPa, 56% humidity. The distance parameters in this test are adjusted based on two measurements of distance in 3 configurations:  2 meters and 5 meters, 5 meters and 10 meters, and 2 meters and 10 meters.  The results are in Figure 14.