PEC: A Privacy-Preserving Emergency Call Scheme for Mobile Healthcare Social Networks
In this paper, the authors propose a privacy-preserving emergency call scheme, called PEC, enabling patients in life-threatening emergencies to fast and accurately transmit emergency data to the nearby helpers via Mobile Healthcare Social Networks (MHSNs). Once an emergency happens, the Personal Digital Assistant (PDA) of the patient runs the PEC to collect the emergency data including emergency location, patient health record, as well as patient physiological condition. The PEC then generates an emergency call with the emergency data inside and epidemically disseminates it to every user in the patient's neighborhood. If a physician happens to be nearby, the PEC ensures the time used to notify the physician of the emergency is the shortest.