基于环-树型拓扑的无线传感网密钥管理方案  

Key management scheme of wireless sensor networks based on ring-tree network topology

作　　者：胡荣[1] 何军[2] 杨春[1] 

机构地区：[1]四川师范大学计算机科学学院,四川成都610068 [2]四川大学计算机学院,四川成都610065

出　　处：《计算机工程与设计》2010年第8期1645-1649,共5页Computer Engineering and Design

基　　金：国家863高技术研究发展计划基金项目(2008AA01Z208);四川省科技厅基金项目(2007H12-010);四川省计算机软件重点实验室基金项目(08JSU002);四川省青年基金项目(2009-28-419)

摘　　要：设计了一种基于无线传感网的拓扑模型——环-树型网络拓扑模型。基于该模型,结合节点命名机制,提出了一种新的密钥管理方案。该方案在拓扑结构上改变传统的三层分簇拓扑为四层分簇拓扑,在路由安全问题上采用二次核实机制。经仿真工具OMNET++实验,较传统的三层分簇拓扑模型,该方案的网络拓扑模型延长了第一个节点的死亡时间,且整个网络具有更长的生命周期和更好的安全保证。A network topology model named ring-tree network topology model is designed. Based on this model, combining with nodenaming mechanism, a new scheme of key management is proposed. The new scheme changed the traditional three-layer clustering topology to the four-layer one, and used secondary verification mechanism on the routing security issues. At last, they used the simulation tool named by OMNET＋＋ to simulate. Compared to traditional three-layer clustering topology, the simulation results show that the new scheme extended the first node’s death time, and the entire network had a longer life cycle and better security guarantees.

关 键 词：无线传感器网络 环-树型网络拓扑模型 节点命名 密钥管理 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]