Healthcare monitoring. Healthcare monitoring [47] has been one of the key application domains of sensor networks over
the past several years; a recent survey can be found in [48]. Several studies have leveraged the Shimmer platform [49], a
mote-class device designed for wireless body sensing [50]. As a notable example of Shimmer-based systems, Mercury [51]
is a wearable wireless sensor platform for the long term collection of sensory data for the motion analysis of patients
being treated for neuromotor disorders. There now exist commercial wearable systems such as [52] for the real time
monitoring of the patients most important vital signs, such as blood pressure, heart rate, EKG, pulse oximeter oxygen
saturation, temperature and position. There have also been notable accomplishments in smart dust-scale pervasive sensing
for healthcare. In wireless capsule endoscopy [53], a miniature pill-sized camera ingested by a patient travels passively
through the digestive system to collect GI tract imaging unobtrusively. The integration of other sensors is likely to make
wireless endoscopes even more versatile in coming years.