1Islamic Azad University of Science and Research Brach, Birjand, Iran
2Department of Computer, University of Birjand, Birjand ,Iran
It’s not long since the advent of pervasive computing by Mark Weiser and one of its main usages is in healthcare systems. As this technology has been introduced only recently in this field and because we are dealing with peoples’ lives and their data, providing a high level of privacy and security is of great importance. Various studies have been performed in which a certain method has been used to reach the mentioned goals. In this paper we have two major goals, introducing this technology and its benefits in healthcare domains and studying and comparing the five most related articles done in this domain by some criteria. By comparing these works we can achieve a useful result in the current methods in order to provide privacy and establish security.