【摘要】：通常情況下,DV-Hop算法的精度不高,為此文章在橢圓測距的異構(gòu)無線傳感網(wǎng)絡(luò)DV-Hop定位的基礎(chǔ)上提出了ER-DV-Hop(elliptical range estimation-based DV-Hop localization algorithm)算法,較好的解決了DV-Hop算法定位精度不高的問題。在ER-DV-Hop算法中,依據(jù)錨節(jié)點至未知節(jié)點路徑的橢圓特性,并結(jié)合橢圓離心率,估計錨節(jié)點離未知節(jié)點的距離,進(jìn)而提高測距精度。此外,ER-DV-Hop算法自適應(yīng)調(diào)整節(jié)點的通信半徑,進(jìn)而提高網(wǎng)絡(luò)覆蓋率。仿真結(jié)果表明,與傳統(tǒng)的DV-Hop算法相比,提出的ER-DV-Hop算法的平均定位誤差降低了約14%-16%,定位精度提高了約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，

本文編號：2487458