基于椭圆测距的WSN的DV-Hop定位算法
发布时间：2019-05-28 23:35
【摘要】：通常情况下,DV-Hop算法的精度不高,为此文章在椭圆测距的异构无线传感网络DV-Hop定位的基础上提出了ER-DV-Hop(elliptical range estimation-based DV-Hop localization algorithm)算法,较好的解决了DV-Hop算法定位精度不高的问题。在ER-DV-Hop算法中,依据锚节点至未知节点路径的椭圆特性,并结合椭圆离心率,估计锚节点离未知节点的距离,进而提高测距精度。此外,ER-DV-Hop算法自适应调整节点的通信半径,进而提高网络覆盖率。仿真结果表明,与传统的DV-Hop算法相比,提出的ER-DV-Hop算法的平均定位误差降低了约14%-16%,定位精度提高了约12%-15%。
[Abstract]:In general, the accuracy of DV-Hop algorithm is not high. In this paper, a ER-DV-Hop (elliptical range estimation-based DV-Hop localization algorithm) algorithm is proposed on the basis of DV-Hop location of heterogeneous wireless sensor networks with elliptical ranging. It solves the problem that the positioning accuracy of DV-Hop algorithm is not high. In the ER-DV-Hop algorithm, according to the elliptical characteristics of the path from the anchor node to the unknown node, combined with the elliptical eccentricity, the distance between the anchor node and the unknown node is estimated, and then the ranging accuracy is improved. In addition, the ER-DV-Hop algorithm adaptively adjusts the communication radius of the node to improve the network coverage. The simulation results show that compared with the traditional DV-Hop algorithm, the average positioning error of the proposed ER-DV-Hop algorithm is reduced by about 14% 鈮，
本文编号：2487458
[Abstract]:In general, the accuracy of DV-Hop algorithm is not high. In this paper, a ER-DV-Hop (elliptical range estimation-based DV-Hop localization algorithm) algorithm is proposed on the basis of DV-Hop location of heterogeneous wireless sensor networks with elliptical ranging. It solves the problem that the positioning accuracy of DV-Hop algorithm is not high. In the ER-DV-Hop algorithm, according to the elliptical characteristics of the path from the anchor node to the unknown node, combined with the elliptical eccentricity, the distance between the anchor node and the unknown node is estimated, and then the ranging accuracy is improved. In addition, the ER-DV-Hop algorithm adaptively adjusts the communication radius of the node to improve the network coverage. The simulation results show that compared with the traditional DV-Hop algorithm, the average positioning error of the proposed ER-DV-Hop algorithm is reduced by about 14% 鈮，
本文编号：2487458
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