分簇无线传感器网络密钥管理方案

Key Management Scheme for Clustered Wireless Sensor Networks

针对无线传感器网络能量、计算能力、存储空间及带宽等局限性问题,提出了一种基于分簇结构的无线传感器网络密钥管理方案.该方案采用组合设计方法,以保证同一簇内所有节点可直接建立共享密钥,而不同簇的节点可通过基站构建多路径密钥.理论分析和仿真结果表明:节点只要存储10个以上密钥,就能保持网络连通概率为1.

In order to overcome the limitations in power,computation,storage space and band width,a key management scheme for clustered wireless sensor networks was presented.Combinatorial design is adopted in this scheme so that the nodes in the same cluster can directly establish shared keys while the ones in different clusters can set up a multi-path key through the base station.The theoretical and simulation results show that with the key management scheme,the probability of network connectivity is 1 when the number of node＇s keys is more than 10.