.png){kind=icon}
返回
A Node Deployment-Aided Intelligent Optimization Estimation for WSNs Positioning Refinement
.png){kind=icon}
PRE
AI
DOI：10.1109/TIM.2023.3330360.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The popularity of next-generation networks has brought ubiquitous location-based demands. This article proposes a node deployment-aided intelligent optimization estimation (NDIOE) for target positioning in terms of node deployment, wireless ranging, calibration errors, and the algorithm itself. Since the optimized deployment of anchor nodes is the basis of high-accuracy positioning, we derive the characteristic matrix closely related to the upper bound of positioning error and map the signal domain to the location domain for a preliminary result solved by unconstrained optimization estimation. On this basis, the preliminary locations as the initial search values can be further refined for more accurate locations with the use of improved local particle swarm optimization in a narrowed searching area, whose adaptive fitness function, inertia weight factor, and mutation operation are designed to avoid falling into the local optimal. Aside from that, considering the high computational cost of solving extreme values through node traversal, we theoretically derive the theoretical minimum expression of any point based on Cramer-Rao lower bound (CRLB) as a benchmark, whose theoretical minimum value is 0.22 in the fully connected network. Compared with the existing related algorithms, the proposed NDIOE algorithm is effectively validated under simulation and experimental platforms, as well as in complex environments with obstacles.
Keyword:
Accuracy evaluation
Cramer-Rao lower bound (CRLB)
distributed positioning
intelligent optimization
node deployment
target localization
uncertainties
wireless sensor networks (WSNs)
期刊
IF:
5.9
论文数:
1.9W
被引数:
5.8W
机构
引用论文
Analysis of 3D localization in underwater optical wireless networks with uncertain anchor positions不确定锚位置的水下无线光网络三维定位分析
PREAI
分享收藏A Survey on Mobile Anchor Node Assisted Localization in Wireless Sensor Networks无线传感器网络中移动锚节点辅助定位研究综述
PREAI
分享收藏
Nucleotide sequence and transcriptional start point of the kan gene encoding an aminoglycoside 3-N-acetyltransferase from Streptomyces griseus SS-1198PR.png)
Gene
GeneIF0
PREAI
分享收藏
分享收藏
查看更多内容