Follow @grandma: Long-Term Device-Free Localization for Residential Monitoring
Device-Free Localization (DFL) enables localizing people by monitoring the changes in the Radio Frequency (RF) attenuation field of an area where a wireless network is deployed. Notably, this technology does not require people to participate in the localization effort by carrying any electronic device. This paper presents a DFL system for long-term residential monitoring. Due to the daily activities carried out by the people being monitored, the radio signals' propagation patterns change continuously. This would make a system relying only on an initial calibration of the radio environment highly inaccurate in the long run.