摘要
针对现有定位算法对锚节点依赖性强、通信和计算资源开销大的特点,在对现有无线传感器网络定位算法研究的基础上,提出了一种基于非测距的无需部署锚节点的定位算法。该定位算法应用了深度势场的概念,仅根据网络连通性等相关信息实现节点间相对定位。算法核心思想是建立关于根节点的距离深度势场模型,并根据节点的深度顺序和平行顺序在模型中作相对排序。仿真结果表明该算法相对定位准确、抗干扰能力强,可以广泛地应用于大型停车场等场合。
For the existing localization algorithm＇ s strong dependence on anchors and large communication and computing resource o- verhead, a new algorithm based on range - free is proposed without the need of anchors. The proposed algorithm applies the concept of depth potential field, which can realize nodes＇ relative localization only according to network connectivity and other related informa- tion. The newlocalization algorithm builds a model of depth potential field of the root and then sorts other nodes in relative position ac- cording to the depth order and width order. Simulation results show that the proposed algorithm is comparatively accuratein relative localization and strong in anti - interference, which can be widely used in large parking lots and other occasions.
出处
《网络新媒体技术》
2016年第6期61-64,共4页
Network New Media Technology
关键词
无线传感器网络
非测距
相对定位
深度势场
wireless sensor network（WSN） , range - free, relative localization, depth potential field
