Secured Sector Based Bi-path Clustering and Routing Protocol for Wireless Sensor Network

Abstract

Security and efficient routing are two important parameters in sensor networks. There are few protocols that consider both routing and security. Existing methods suffer from computational overheads. In this thesis we propose SSBBCR (Secured Sector Based Bi-path Clustering and Routing) protocol that takes both these two issues into consideration. It uses bi-path routing algorithm to decrease the computational overhead as well as energy dissipation in the nodes. A key pre-distribution scheme is proposed such that nodes in the route share keys while those that are not in the route do not share keys with nodes that are in the route. Simulation results show that the proposed protocol maximizes the sensor network lifetime and achieves a high probability of connectivity. The proposed approach achieves the best performance when the network is large and the sensor nodes are deployed over a large area.