A Measurement Study of BLE iBeacon and Geometric Adjustment Scheme for Indoor Location-Based Mobile Applications

<div>Distance versus RSSI plot for three different types of iBeacons: Estimote, GELO, and Wizturn Pebble (4 dBm/0 dBm TX power, 1.2 m height, LOS, and iOS).</div>

Mobile Information Systems

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Figure 4

Figure 4: A Measurement Study of BLE iBeacon and Geometric Adjustment Scheme for Indoor Location-Based Mobile Applications 