Severity-aware hierarchical federated learning for privacy-preserving indoor emergency recognition in BLE-based medical IoT environments
Indoor safety in GPS-denied environments such as hospitals remains critically hindered by the lack of data-local, context-aware emergency localization systems. This paper presents a complete three-layer IoT framework, namely Medical Indoor BLE Emergency System (MIBES), integrating BLE 4.2 and Federated Learning (FL) fo...