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针对现有源位置隐私保护算法安全周期较低的问题,提出基于椭圆模型的无线传感器网络源位置隐私保护算法.该算法借助源节点和基站节点的坐标构建椭圆,随机分散地选择椭圆上的节点作为预期幻影源节点,为幻影源节点提供选择方向,分散相邻数据包的传输路径.理论分析表明,所提出算法能增加数据包在传输过程中远离源节点和基站节点的概率.仿真结果表明,与现有源位置隐私保护算法相比,所提出算法能提高安全周期,有效保护源位置隐私.
In order to solve the problem of low security period of existing privacy protection algorithms, this paper proposes an elliptic model based source location privacy protection algorithm for wireless sensor networks. This algorithm uses the coordinates of the source node and the base station node to construct an ellipse, randomly selects nodes on the ellipse As the expected phantom source node, the illusion source node is provided with the selection direction to disperse the transmission path of the adjacent data packet. Theoretical analysis shows that the proposed algorithm can increase the probability that the data packet is far away from the source node and the base node node in the transmission process. , Compared with the existing source location privacy protection algorithm, the proposed algorithm can improve the security period and effectively protect the source location privacy.