An adaptive context aware communication system for ubiquitous environment based on overlay network

As more and more people living by their own, the importance to remote monitoring is becoming essential for looking after them. But protecting personal privacy is going to be a prime concern as patient's data should be available irrespective of their location, but only to the authorized person. We need to consider the social relationship between the monitored person and those who are responsible for taking care for that person. At the same time quality and reliability of transferring data is also important depending on the content of the data and the recipient. In this paper we propose a system where an overlay network will be built in an ad hoc basis and links between different entities will be established according to the social relationship between the person under observation and the people at the other end and the situation of the observed person. The connected links will provide reliability, quality and other required characteristics according to the requirements specified by the members involved. For efficient cost and resource utilization, an on-demand network connection is considered for our proposed context aware ubiquitous healthcare system.