Photoplethysmography (PPG) is a simple optical technique widely used in wearable devices
for continuous cardiac health monitoring. However, the quality of PPG signals, particularly …

Wearables provide a promising solution for proactive health by monitoring real-time vital
signs long-term. However, wrist-worn devices, like smartwatches, have faced issues with …

This paper provides an update on the current status and future challenges in the field of
wearable photoplethysmography, an optical sensing technology which is widely used in …