WSNs中基于可变夹角动态路由的源位置隐私保护方案

摘要

Spachos等人提出了保护原节点位置隐私的基于夹角的动态路由方-案(ADRS),但此方案是对固定夹角区域进行数据传输,不能动态改变夹角给出最优路径.为了进一步增强源节点位置隐私安全,提出动态地改变ADRS中固定夹角的新方案——基于可变夹角的动态路由方案(VADRS).该方案通过对每一跳选择最优角度进行数据传输,改进了ADRS的安全性能.实验表明,在不显著增加网络平均端到端延迟下,新方案能够延长网络的平均安全周期,增强源节点位置隐私的安全性.%In 2014,an angle-based dynamic routing scheme (ADRS) was proposed as a source-location privacy protection scheme,which could significantly improve the network safety period and the end-to-end packet latency.However,this scheme could not adapt this angle to select an optimal routing.This paper developed the variable-angle based dynamic routing scheme (VADRS) that calculated an optimal angle for every hop to further improve the safety performance of ADRS.Simulation results show that the new scheme not only extends the average safety period greatly,but also improves security of the source location privacy significantly without increasing the average network end-to-end latency too much.