{"title":"DiFS: Wi-Fi Based Directed Fresnel Signature Localization for Mobile Ship Environment","authors":"Kezhong Liu;Guoyu Wang;Cong Chen;Xuming Zeng;Guangmo Tong;Mozi Chen","doi":"10.1109/JSEN.2024.3392913","DOIUrl":null,"url":null,"abstract":"The device-free localization of individuals not equipped with a radio device plays a critical role in cruise ships, particularly during an emergency. In this article, we introduce a device-free localization scheme requiring low human effort, i.e., directed Fresnel signature (DiFS), which utilizes an onboard off-the-shelf Wi-Fi infrastructure. An intuitive idea of DiFS is that because the channel state information (CSI) is sensitive to the target location within the Wi-Fi Fresnel zone, the target location can be determined by extracting the Fresnel signature and coordinates of the Wi-Fi access points (APs). However, due to the skin effect of signal propagation onboard a ship, CSI cannot reflect a target with precision. Furthermore, an undirected Fresnel signature may lead to misinterpretation if the Wi-Fi APs are not deployed perfectly. We observed that the power delay profiles (PDPs) can accurately reflect the target shadowing within the Fresnel zone in a rich multipath environment. In addition, we leverage the specific skin effect in metal ships and infer DiFSs using a set of power fading models. Extensive experimental results on an actual ship demonstrate that DiFS outperforms the state-of-the-art methods and achieves an accuracy of 0.9 and 1.2 m in the line-of-sight (LoS) and non-LoS (NLoS) scenarios, respectively.","PeriodicalId":447,"journal":{"name":"IEEE Sensors Journal","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Sensors Journal","FirstCategoryId":"103","ListUrlMain":"https://ieeexplore.ieee.org/document/10515210/","RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
The device-free localization of individuals not equipped with a radio device plays a critical role in cruise ships, particularly during an emergency. In this article, we introduce a device-free localization scheme requiring low human effort, i.e., directed Fresnel signature (DiFS), which utilizes an onboard off-the-shelf Wi-Fi infrastructure. An intuitive idea of DiFS is that because the channel state information (CSI) is sensitive to the target location within the Wi-Fi Fresnel zone, the target location can be determined by extracting the Fresnel signature and coordinates of the Wi-Fi access points (APs). However, due to the skin effect of signal propagation onboard a ship, CSI cannot reflect a target with precision. Furthermore, an undirected Fresnel signature may lead to misinterpretation if the Wi-Fi APs are not deployed perfectly. We observed that the power delay profiles (PDPs) can accurately reflect the target shadowing within the Fresnel zone in a rich multipath environment. In addition, we leverage the specific skin effect in metal ships and infer DiFSs using a set of power fading models. Extensive experimental results on an actual ship demonstrate that DiFS outperforms the state-of-the-art methods and achieves an accuracy of 0.9 and 1.2 m in the line-of-sight (LoS) and non-LoS (NLoS) scenarios, respectively.
期刊介绍:
The fields of interest of the IEEE Sensors Journal are the theory, design , fabrication, manufacturing and applications of devices for sensing and transducing physical, chemical and biological phenomena, with emphasis on the electronics and physics aspect of sensors and integrated sensors-actuators. IEEE Sensors Journal deals with the following:
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