中文摘要：

源位置隐私保护问题已经成为制约无线传感器网络大规模应用的一个关键问题。为更好的保护源位置隐私,该文提出了一种无重复有向随机步路由策略。在无重复有向随机步路由策略中,引入了无重复的策略,数据包以无重复有向随机步的方式转发到汇聚节点。仿真结果显示所提路由能提供很好的安全时间,有效的保护源位置隐私。最后,提出了需要进一步研究的问题。

英文摘要：

One of the looming challenges that threaten the successful deployment of wireless sensor networks is source-location privacy.In order to enhance source location privacy in sensor networks,this paper proposes a new scheme called NDRW.In NDRW,a non-repetitive strategy is introduced,and packets are forwarded to the sink node through non-repetitive directed random walk.Simulation results show that NDRW can increase the safety period and provide a strong source-location privacy protection.Finally,some problems needed to study further are pointed out.