Title
Hard Decision-Based Cooperative Localization for Wireless Sensor Networks.
Abstract
Reliable and accurate localization of objects is essential for many applications in wireless networks. Especially for large-scale wireless sensor networks (WSNs), both low cost and high accuracy are targets of the localization technology. However, some range-free methods cannot be combined with a cooperative method, because these range-free methods are characterized by low accuracy of distance estimation. To solve this problem, we propose a hard decision-based cooperative localization method. For distance estimation, an exponential distance calibration formula is derived to estimate distance. In the cooperative phase, the cooperative method is optimized by outlier constraints from neighboring anchors. Simulations are conducted to verify the effectiveness of the proposed method. The results show that localization accuracy is improved in different scenarios, while high node density or anchor density contributes to the localization. For large-scale WSNs, the hard decision-based cooperative localization is proved to be effective.
Year
DOI
Venue
2019
10.3390/s19214665
SENSORS
Keywords
Field
DocType
hard decision,WSN,cooperative localization,distance calibration,outlier constraints
Wireless network,Exponential function,Outlier,Electronic engineering,Real-time computing,Engineering,Wireless sensor network,Calibration
Journal
Volume
Issue
ISSN
19
21
1424-8220
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Zhaoyang Wang100.34
Xue-bo Jin2136.67
Xiaoyi Wang33716.96
Jiping Xu435.50
Yu-Ting Bai5104.82