부산대학교 도서관

The emergence of ubiquitous computing paradigms, and smart Ambient Intelligence environments, will play a crucial role, towards creating better living environments for activity-challenged individuals, such as disabled, or elderly people that require constant care. In addition, cloud computing has been an empowering force for that endeavour. In this paper, we propose a virtualized Cloud-based Ambient Assisted Living (AAL) system that enables caretakers and first responders to constantly monitor a patient's indoor/outdoor position and be notified in case of emergency. Positioning is made possible through an embedded device (carried by the patient) that performs proximity estimation (Wi-Fi) and cell identification(Cellular). The geolocation data are sent to a VNF (Virtual Network Function) for further processing and assessment. In case the patient drifts away from his/her premises, the VNF retrieves the closest-to-the-patient third party agents (caretakers, hospital, police, volunteers, first responders, etc.) through the Location-to-Service-translation (LoST) protocol [1] and alerts them via a SIP-based (Session Initiation Protocol) VOIP (Voice over IP) communication channel.