WiPhone: Smartphone-based Respiration Monitoring Using Ambient Reflected WiFi Signals.
summary
WiPhone is a smartphone implementation that uses ambient reflected WiFi CSI to estimate chest displacement and respiration rate, running on a Google Nexus 5 with an ASUS RT-AC86U router; it preprocesses noisy smartphone CSI with DBSCAN preprocessing to isolate respiration-modulated amplitude patterns. Tested with 8 subjects in a 126 m² apartment, through single and multiple walls up to 10 m, it achieves 0.31 bpm average error and demonstrates reliable sensing with Nexus 5 + ASUS RT-AC86U hardware.
AI-written summary · about