An Efficient RF Fingerprint Positioning Algorithm Based on Uneven Grid Layout
An Efficient RF Fingerprint Positioning Algorithm Based on Uneven Grid Layout
复制标题
DOI：
10.1049/cp.2015.0950
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Huan Ma;Lijun Zhang;Yanan Han
中科院分区：
文献类型：
--
作者：
Huan Ma;Lijun Zhang;Yanan Han
提出了一种基于非均匀网格布局的网格划分方法，该方法针对基于网格的射频指纹定位问题，采用多级六边形网格模型构造非均匀网格布局。在射频指纹定位框架中，采用不均匀网格布局，利用最小化路测技术采集射频指纹信息并构建指纹。在两种LTE网络场景（同构和异构网络）下，对非均匀网格布局进行了性能评估。实验结果表明，该网格化方法比常规的规则布局能够减小相关数据库的规模，定位精度比常规的规则布局提高了16%。
A novel meshing method based on uneven grid layout is proposed, which is designed for grid-based radio frequency (RF) fingerprint positioning and construct the uneven grid layout with a multistage hexagonal network model. We employ the uneven grid layout in RF fingerprint positioning framework which using the minimization of drive testing (MDT) to collect the RF fingerprint information and construct the fingerprints. Performance evaluation of the uneven grid layout is conducted in two LTE network scenarios, homogeneous and heterogeneous networks. The results show that our meshing method can reduce the size of the correlation database over the regular layout, and the position accuracy have at most 16% improvement over the conventional regular RF fingerprint layout.