Energy efficient approach with integrated key management scheme for wireless sensor networks

Abstract

Two-tier topology makes good candidate for making clusters in wireless sensor networks. So we have considered a heterogeneous 2-tier topology to route the data securely among nodes in the sensor network. Initially, after deploying two types of nodes low-end and high-end nodes in the area of interest we divide the given area into clusters. A multilevel approach is used to partition and adjust the nodes in the clusters in a sophisticated manner that the performance of Improved Tree routing is improved. Researchers mainly focus on routing the data efficiently and effectively in the sensor network. Only a few considered integrating security in the design of a routing protocol. We have also made an effort to make Improved Tree routing secure by integrating pairwise key management scheme in it. Through simulations it is shown that given approach performs better than some of the existing protocols.