【摘要】 针对无线传感器网络中,虫洞攻击对节点定位过程的影响,提出了一种改进的抵御虫洞攻击的距离矢量跳(DV-Hop)安全定位算法。通过改进建立冲突集的方法,选出最合适的信标节点广播睡眠信息,尽可能减少进入睡眠状态的节点的数量,进一步提高了虫洞检测成功率和定位精度。将所提算法与基于标记来抵御虫洞攻击的DV-Hop(LBDV)算法进行比较,仿真结果表明:提出的安全定位算法性能优于LBDV算法。更多还原

【Abstract】 Aiming at the impact of wormhole attack on node localization in wireless sensor networks( WSNs),an improved DV-Hop security localization algorithm is proposed to resist wormhole attack. By improving the method of establishing conflict set,the most appropriate beacon nodes are selected to broadcast sleep information,as far as possible to reduce the number of nodes go into sleep state,to further improve the success rate of wormhole detection and localization precision. The algorithm is compared with the label-based DV-Hop localization against wormhole attacks( LBDV) algorithm. The simulation results show that the performance of the security localization algorithm described in this paper is better than that of the LBDV algorithm.更多还原