基于风险指数的随机路由策略

Risk Index-based Stochastic Routing Strategy

论文借鉴现有移动adhoc网络协议中的声誉机制,给出了一个新的节点信任度的评测机制,该机制成功消除了节点间干扰给状态判别带来的不确定性,同时杜绝了节点通过改变自身标识以躲避信任度评测的现象;然后基于节点的可信任程度,提出了基于风险指数的随机路由策略。作者认为,应当允许自私甚至恶意的节点参与路由;参与路由,为邻居节点转发数据包是提高信任程度的唯一途径。

This paper presents a newly stochastic routing strategy for mobile ad hoc networks,based on the research of uncooperative behavior of nodes.First we present a new mechanism to judge node＇s confidence.This mechanism eliminates uncertainty of the judgment to node＇s status under interference from neighbor nodes,and prevents nodes changing its id to escape the monitor of the mechanism.Then based on the confidence of nodes,we present stochastic route strategy based on risk index of routes.We consider that highly unreliable,even malicious nodes should be permitted to join route,the only way to increase node＇s confidence is to relay packets for other nodes.