====== RSSI ====== The Received Signal Strength Indicator (RSSI) is a measure of the power level at the receiver. When a device scans for Bluetooth devices, the Bluetooth radio inside the device provides a measurement of the RSSI for each seen device. It's measured in decibels, dBm, on a logarithmic scale and is negative. A more negative number indicates the device is further away. For example, a value of -20 to -30 dBm indicates the device is close while a value of -120 indicates the device is near the limit of detection. [[https://www.beaconzone.co.uk/blog/obtaining-distance-from-rssi/|Obtaining Distance from RSSI]]\\ [[https://www.thinkmind.org/download.php?articleid=icsnc_2013_1_30_20039|Distance Estimation of Smart Device using Bluetooth]]\\ [[https://www.beaconzone.co.uk/blog/testing-if-a-beacon-is-working/|Testing if a Beacon is Working]]\\ [[https://www.beaconzone.co.uk/blog/beacon-location-accuracy/|Beacon Location Accuracy]]\\ [[https://www.beaconzone.co.uk/blog/beacon-signal-stability-observations/|Beacon Signal Stability Observations]]\\ [[https://www.beaconzone.co.uk/bluetoothleposition|Determining Location Using Bluetooth Beacons]]\\ [[https://biblio.ugent.be/publication/8586294/file/8586295.pdf|Performance Comparison of RSS Algorithms for Indoor Localization in Large Open Environments]]\\