Mathematical Model of Security Framework for Routing Layer Protocol in Wireless Sensor Networks

Abstract

Most of the environmental and non-attended applications of Wireless Sensor Networks (WSN's) need mobile sensor nodes. However, mobility of sensor nodes increases security issues in WSNs and it's also vulnerable to various kinds of attacks. Dynamic WSN emerges two most common issues related to the authentication of moving sensor nodes and security in communication and key distribution. After possible movement of sensor node requires authenticating again and again from the base station or some other trusted nodes. Similarly, confidentiality in communication and key distribution is an important factor against man-in-middle type of attacks. Till the day most of the WSN's security researchers concentrate on the static environment. Though there schemes are secure and efficient but not sufficient to secure mobile WSN's environment. In this paper we have proposed a novel protocol framework and related mathematical model for secure routing layer communication and key distribution in mobile WSN's. After that we apply this model for performance evaluation on the basis of static as well as dynamic scenario for different number of nodes which shows that our framework is satisfactorily suitable for dynamic WSNs applications.