论文部分内容阅读
节点定位技术是无线传感器网络的关键技术之一，是很多基于无线传感器网络的应用的基础。然而，无线传感器网络通常部署在无人值守的敌对环境中，攻击节点能够很容易地破坏网络中节点的定位过程。针对无线传感器网络中距离无关的定位技术，分析了虫洞攻击对DV-Hop定位过程的影响，提出了一种无线传感器网络中抵御虫洞攻击的DV-Hop安全定位方法。仿真结果表明，所提出的安全定位方法能够有效降低虫洞攻击对DV-Hop定位过程的影响，验证了该方法的有效性。“,”As one of the key technologies in wireless sensor networks (WSN), localization is the basis of many WSN-based applications. However, WSNs are often deployed in the hostile environment, in which the attackers can eas-ily disrupt the localization procedure of the nodes. The effects of wormhole attack on the DV-Hop localization procedure are analyzed firstly, after which a secure localization scheme against the wormhole attack is proposed. The simulation re-sults illustrate that the proposed secure localization scheme can efficiently reduce the effects of the wormhole attack on the DV-Hop localization, which validates the effectiveness of the proposed scheme.