A Subcarrier-Aware Approach for Robust Respiratory Monitoring with Commodity Wi-Fi

Curated by Roxtron — RFID & NFC manufacturer. Visit roxtron.com

Researchers have developed a subcarrier-aware Wi-Fi sensing framework that identifies and prioritizes specific frequency channels most sensitive to human respiratory motion, achieving 97% accuracy in breathing rate estimation. This selective processing approach significantly improves reliability in contact-free healthcare monitoring by reducing error rates and enabling the detection of breathing pauses using standard commodity hardware.