Planning the obstacle-avoidance trajectory of mobile anchor in 3D sensor networks

Planning the obstacle-avoidance trajectory of mobile anchor in 3D sensor networks
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3D传感器网络中移动锚点避障轨迹规划

DOI:
10.1007/s11432-015-5354-2
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发表时间:
2015-07
期刊:
Science China Information Sciences
影响因子:
--
通讯作者:
WANG ChengXiang
WANG ChengXiang
中科院分区:
其他
文献类型:
--
作者:
SHU MingLei;CUI HuanQing;WANG YingLong;WANG ChengXiang

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Localization plays an important role in many applications of wireless sensor networks. Recently, mobile anchor assisted localization methods become promising, and the moving trajectory planning of anchor is an interesting and basic issue in these methods. In this paper, an obstacle-avoidance trajectory planning method for three-dimensional wireless sensor networks is proposed. After dividing the network into grids, a depth-first-search algorithm with greedy strategy is proposed to get the approximately shortest path, and a trigonal function based localization method is presented to estimate the positions of the sensor nodes. Simulations show that this method can obtain almost the optimal path and localize almost all the sensor nodes.创新点本文针对应用于存在障碍物的三维无线传感器网络, 提出一种移动锚节点的避障路径规划算法。该方法首先将网络划分为尺寸相同的正方体网格, 然后将无障碍物网格映射为一个无向图, 再采用基于贪心策略的深度优先搜索算法来获取近似最短路径。在每个无障碍物网格内采用三维Hilbert曲线作为锚节点移动路径, 并采用三角函数来估算传感器节点位置。仿真结果表明该方法可获得较好的路径并能定位大部分节点。
DOI: 10.1007/978-3-642-01020-0_2
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期刊: --
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期刊: 2011 IEEE Global Telecommunications Conference - GLOBECOM 2011
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