基于信誉机制的传感器网络安全路由协议设计

A Security Routing Protocol Design Based on Reputation Systems in Wireless Sensor Networks

无线传感器网络具有与传统网络不同的特点,传统的安全路由协议不能有效地应用于无线传感器网络,所以无线传感器网络安全问题成为亟待解决的课题。针对无线传感器网络路由面临安全威胁和节点能量有限的不足,提出了一种新的安全路由协议R-GEAR。该协议在GEAR路由算法的基础上,引入了信誉评测机制对攻击节点进行检测;并在能耗方面对其加以改进,通过在数据传输时进行数据融合来节约能量。仿真结果表明,在存在攻击节点的情况下,R-GEAR协议比GEAR协议具有较高的包传输率和较低的包丢失率等属性。

Wireless sensor networks are different from traditional networks,so traditional secure routing protocols cannot be applied efficiently to them.Therefore,secure routing issues become emergent in wireless sensor networks.To the problems of threat to routing security and limited energy of the nodes in wireless sensor networks,present a new routing protocol named R-GEAR.This protocol is based on GEAR and reputation evaluation mechanisms are added to GEAR to detect attacking nodes;Moreover,improved GEAR in the energy consumption aspect through data aggregation.The simulation result shows that R-GEAR protocol has higher packet delivery ratio and lower packet drop ratio than GEAR protocol while attacking nodes exist.