VANETS中基于矩阵计算的轻量化位置验证方案

发布时间：2018-02-15 11:54

本文关键词： 位置位置验证一致性矩阵 VANETS　出处：《激光杂志》2014年12期 　论文类型：期刊论文

【摘要】：车载网VANETs的许多应用都±赖于车辆的位置信息,而开放式的VANETs网络中,其应用易遭受各类攻击,如虫洞攻击、消息的纂改,包括车辆位置信息。针对如何验证所获得车辆位置信息的真实性,提出了一种基于矩阵计算的位置轻量化验证方案。首先假定存在真实位置,宣称位置,观察位置三种信息,并建立系统模型;其次构造关于车辆位置信息的矩阵,由宣称位置信息构造观察矩阵,根据通信半径等固定物理量构造估计矩阵,由此计算出差异矩阵,再建立虚假信息评测量度构造权重矩阵,设置阈值剔除非恶意信息的干扰得到不一致性矩阵,以此判定车辆宣称的位置的真假与否;最后实验分析了虚警率、节点密度和检测率之间的关系,实验结果表明:当虚警率为45%,节点密度为40,检测率能达到98%。
[Abstract]:Many applications of vehicular network VANETs depend on the location information of the vehicle, but in the open VANETs network, its applications are vulnerable to various kinds of attacks, such as wormhole attacks and information editing. For how to verify the authenticity of the obtained vehicle position information, a position lightweight verification scheme based on matrix calculation is proposed. Firstly, three kinds of information are assumed to exist: real position, declared position and observed position. The system model is built. Secondly, the matrix of vehicle position information is constructed, the observation matrix is constructed from the declared position information, and the estimation matrix is constructed according to the fixed physical quantity such as the communication radius, and the difference matrix is calculated. Then the weight matrix is constructed to evaluate the false information, and the inconsistency matrix is obtained by setting the threshold to eliminate the interference of the non-malicious information, so as to determine the true or false position of the vehicle. Finally, the false alarm rate is analyzed experimentally. The experimental results show that the detection rate can reach 98 when the false alarm rate is 455.The node density is 40.
【作者单位】：绍兴职业技术学院信息工程学院;浙江理工大学数学科学系;
【基金】：浙江省高职高专院校特色专业建设项目(TZZ09078)
【分类号】：TN929.5

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