| 一种改进的无线传感器网络DV-HOP定位算法 |
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| 引用本文： | 武雪姣,李雪晴,丁佳静.一种改进的无线传感器网络DV-HOP定位算法[J].教育技术导刊,2019,18(8):52-55. |
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| 作者姓名： | 武雪姣 李雪晴 丁佳静 |
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| 作者单位： | 河北地质大学 信息工程学院，河北 石家庄 050031 |
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| 摘 要： | 为了解决DV-HOP算法在节点随机部署环境下定位误差较大的缺点，提出一种基于DV-HOP多通信半径的加权双曲线定位算法RWHDV-HOP。该算法通过理想跳数与实际跳数的差值修正平均跳距，结合多通信半径使跳数小数化，利用基于跳数加权的双曲线算法估算未知节点坐标。仿真结果表明，在相同条件设置下，RWHDV-HOP算法定位精度比传统DV-HOP算法提高了25%，比RWDV-HOP算法提高了10%。因此，基于DV-HOP多通信半径的加权双曲线定位算法RWHDV-HOP在节点随机部署环境下能够较大程度上提高节点定位精度。
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| 关 键 词： | 多通信半径 无线传感器网络 跳距优化 定位精度 加权双曲线算法 |
| 收稿时间： | 2019-04-16 |
An Improved Wireless Sensor Network DV-HOP Positioning Algorithm |
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| WU Xue-jiao,LI Xue-qing,DING Jia-jing.An Improved Wireless Sensor Network DV-HOP Positioning Algorithm[J].Introduction of Educational Technology,2019,18(8):52-55. |
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| Authors: | WU Xue-jiao LI Xue-qing DING Jia-jing |
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| Institution: | School of Information Engineering，Heibei GEO University，Shijiazhuang 050031，China |
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| Abstract: | Aiming at the large positioning error of DV-HOP algorithm in the environment of node random deployment， a multi-communication radius weighted hyperbolic localization algorithm RWHDV-HOP based on DV-HOP algorithm is proposed. The algorithm corrects the average hop distance by the difference between the ideal hop count and the actual hop count. The multi-communication radius refines the number of hops between nodes， and uses the hyperbolic algorithm based on hop weight to estimate the coordinates of unknown nodes. The simulation results show that in the same experimental environment， the RWHDV-HOP algorithm has a 25% higher positioning accuracy than the traditional DV-HOP algorithm and a 10% higher accuracy than the RWDV-HOP algorithm. The RWHDV-HOP algorithm based on DV-HOP multi-communication radius weighted hyperbolic positioning algorithm can improve the node positioning accuracy to a large extent in the environment of node random deployment. |
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| Keywords: | multiple communication radius wireless sensor network hop distance optimization positioning accuracy weighted hyperbolic algorithm |
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