Key pre-distribution scheme for WSN based on hexagon deployment
Xiaokan Wang · Jisuanji gongcheng yu sheji · 2014
Key management is the foundation for the secure communication in wireless sensor networks.A novel key pre-distribution scheme based on deployment knowledge is proposed.In this scheme,the target field is divided into two kinds of hexagons grids:group grids and key grids.Nodes in group grids and key grids are treated differently.By combining deployment knowledge with combinatorial approach,this scheme can drastically reduce the fraction of compromised links when some nodes are captured while maintaining a high connectivity.The simulation results show that the proposed scheme performs better in terms of resilience against node capture compared with other existing schemes.