无线传感器网络安全路由算法的研究与设计

Research and Design on Secure Routing Algorithms in Wireless Sensor Networks

无线传感器网络安全路由问题是亟需解决和具有重要意义的课题,是无线传感器网络安全的一个重要研究方向。本文针时GEAR路由算法的防御弱点,设计了一种新的安全路由算法R-GEAR,通过在GEAR路由算法上引入适用于传感器网络的安全引导方案及信誉评测机制来获得较好的安全性能。对R-GEAR进行安全性分析,并利用NS2仿真工具进行仿真实验。结果表明,在存在攻击节点的情况下,与GEAR路由算法相比,R-GEAR安全路由算法具有更好的包传输率、包丢失率。

Secure routing issues, as a crucial research direction of security, is emergent and significant in WSNs. A new improved secure routing algorithm named R-GEAR is designed in this paper. Firstly, towards the vulnerabilities of GEAR, key distribution scheme and reputation evaluation mechanism which are suitable for WSNs are added to GEAR to obtain preferable safety performance. Then, safety analysis and simulation experiment of R-GEAR on the NS2 are done respectively. The simulation result shows that the proposed algorithm C-CEAR has better performance than GEAR in terms of packet delivery ratio and drop ratio while there exists attacking nodes.