| AAL | Ambient Assisted Living |
| AOA | Angle of Attack |
| AP | Access Point |
| BLE | Bluetooth Low Energy |
| BSN | Body Sensor Networks |
| DCM | Database Correlation Method |
| DOAJ | Directory of Open Access Journals |
| GFSK | Gaussian Frequency Shift Key |
| i-KNN | intelligent KNN |
| IMU | Inertial Measuring Unit |
| IoT | Internet of Things |
| IW-KNN | Iterative Weighted KNN |
| KNN | K-Nearest Neighbour |
| LTE | Long Term Evolution |
| MAP | Maximum A Posteriori |
| MDPI | Multidisciplinary Digital Publishing Institute |
| MMSE | Minimum Mean Square Error |
| MS | Mobile Station |
| NN | Nearest Neighbour |
| RSS | Received Signal Strength |
| RSSD | RSS Difference |
| RTLS | Real-Time Localization System |
| TDOA | Time Difference of Arrival |
| TOA | Time of Arrival |
| TOF | Time of Flight |
| VLC | Visual Light Communication |
| VLP | Visual Light Positioning |
| WKNN | Weighted K-Nearest Neighbour |