身份密码在WSNs安全定位中的应用

摘要

恶意伪装锚节点向无线传感器网络(WSNs)中发送虚假位置信息扰乱正常定位,针对此类问题,提出将身份密码应用于安全定位过程中,通过此方法达到节点认证、检测隔离伪装锚节点的目的.仿真结果表明:在存在伪装锚节点攻击的情况下,该方法能够使基于到达时间差( TDoA)测距的定位误差由6.7845％下降到1.7086％,保证定位的准确性.%Malicious beacon nodes in wireless sensor networks ( WSNs) sent false location information to disrupt normal positioning. To solve these problems, the ID-based encryption is introduced to authenticate nodes, detect and remove malicious beacon nodes. Detailed analysis and simulation is provided to evaluate the proposed techniques. This method decreases the positioning error based on TDoA from 6. 7845 % to 1. 7086 % .which can ensure the positioning accuracy.