Use of MPEG-21 for Security and Authentication in Biomedical Sensor Networks

Privacy and security are two major concerns in the ubiquitous deployment of wireless patient monitoring systems. Wireless sensor networks become an integral part of the monitoring process, where wireless sensors can enter or leave the monitoring situation randomly. As a tool to handle threats that may arise by the use of wireless sensors, we propose a new framework using MPEG-21. MPEG-21 is an architecture that can handle end-to-end management of content and network resources. In this paper we evaluate the use of the MPEG-21 architecture in a resource-constraint wireless sensor network, where different threats are evaluated and countermeasures are proposed.