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中文摘要：
针对Ad hoc网络的路由安全问题,提出一种基于信任评估的Ad hoc网络安全路由协议,采用改进的信任评估模型,每个节点维护一张信任表,在路由过程中结合信任表并通过路由请求和路由回复,双向判断上一跳和下一跳节点的可信性,并且在路径选择时综合路径信任值和跳数值2个因素,使得信任评估和路由协议紧密地结合。通过NS2仿真实验进行验证,结果表明,该协议可以较好地避开自私节点,保证路由安全,提高路由性能。
英文摘要：
Aiming at the security problem on routing in Ad hoc network,this paper presents a secure routing protocol based on trust evaluation in Ad hoc network.It uses the modified trust evaluation model,every node maintains a table of trust value.In the process of routing,it judges credibility of the previous hop and next hop in RREQ and RREP according to that table,and chooses the route considering both the value of route trust and hop count.The scheme makes trust evaluation and routing protocol have more connection with each other.Through NS2 simulation experiment,result shows that the protocol can avoid selfish node well,and it not only enhances the security,but also increases the routing efficiency.
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