A Secure Scheme for Three-Dimension Heterogeneous Wireless Sensor Networks
Yuquan Zhang, Min You · International Review on Computers and Software (IRECOS) · 2013
A pairwise key establishment strategy for heterogeneous wireless sensor networks is presented in this paper through investigating how heterogeneous sensor nodes enhance network performance. The heterogeneous wireless sensor networks have some sensor nodes that have greater power and transmission capability than other nodes have. All kinds of nodes are evenly deployed in sensing cube respectively. The sensing cube is divided into a number of small same cubes for all kinds of nodes and then eight of those small cubes are comprised of a logical group for heterogeneous nodes. The pairwise keys between all kinds of nodes are set up through utilizing the concept of the overlap key sharing, the grid-based key predistribution scheme, and the random key predistribution scheme. Analysis shows the heterogeneous nodes improve both the security and connectivity of the wireless sensor networks.