Self-Supervised WiFi-Based Identity Recognition in Multi-User Smart Environments
The deployment of autonomous AI agents in smart environments has accelerated the need for accurate and privacy-preserving human identification. Traditional vision-based solutions, while effective in capturing spatial and contextual information, often face challenges related to high deployment costs,...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/10/3108 |
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| author | Hamada Rizk Ahmed Elmogy |
| author_facet | Hamada Rizk Ahmed Elmogy |
| author_sort | Hamada Rizk |
| collection | DOAJ |
| description | The deployment of autonomous AI agents in smart environments has accelerated the need for accurate and privacy-preserving human identification. Traditional vision-based solutions, while effective in capturing spatial and contextual information, often face challenges related to high deployment costs, privacy concerns, and susceptibility to environmental variations. To address these limitations, we propose <i>IdentiFi</i>, a novel AI-driven human identification system that leverages WiFi-based wireless sensing and contrastive learning techniques. <i>IdentiFi</i> utilizes self-supervised and semi-supervised learning to extract robust, identity-specific representations from Channel State Information (CSI) data, effectively distinguishing between individuals even in dynamic, multi-occupant settings. The system’s temporal and contextual contrasting modules enhance its ability to model human motion and reduce multi-user interference, while class-aware contrastive learning minimizes the need for extensive labeled datasets. Extensive evaluations demonstrate that <i>IdentiFi</i> outperforms existing methods in terms of scalability, adaptability, and privacy preservation, making it highly suitable for AI agents in smart homes, healthcare facilities, security systems, and personalized services. |
| format | Article |
| id | doaj-art-ddebb2603c894fbbae55c30d4ebfd8bf |
| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-ddebb2603c894fbbae55c30d4ebfd8bf2025-08-20T03:12:04ZengMDPI AGSensors1424-82202025-05-012510310810.3390/s25103108Self-Supervised WiFi-Based Identity Recognition in Multi-User Smart EnvironmentsHamada Rizk0Ahmed Elmogy1Computers & Control Engineering Department, Faculty of Engineering, Tanta University, Tanta 31527, EgyptFaculty of Computer Engineering & Sciences, Prince Sattam Ibn Abdelaziz University, Alkharj 16273, Saudi ArabiaThe deployment of autonomous AI agents in smart environments has accelerated the need for accurate and privacy-preserving human identification. Traditional vision-based solutions, while effective in capturing spatial and contextual information, often face challenges related to high deployment costs, privacy concerns, and susceptibility to environmental variations. To address these limitations, we propose <i>IdentiFi</i>, a novel AI-driven human identification system that leverages WiFi-based wireless sensing and contrastive learning techniques. <i>IdentiFi</i> utilizes self-supervised and semi-supervised learning to extract robust, identity-specific representations from Channel State Information (CSI) data, effectively distinguishing between individuals even in dynamic, multi-occupant settings. The system’s temporal and contextual contrasting modules enhance its ability to model human motion and reduce multi-user interference, while class-aware contrastive learning minimizes the need for extensive labeled datasets. Extensive evaluations demonstrate that <i>IdentiFi</i> outperforms existing methods in terms of scalability, adaptability, and privacy preservation, making it highly suitable for AI agents in smart homes, healthcare facilities, security systems, and personalized services.https://www.mdpi.com/1424-8220/25/10/3108WiFi sensingidentity recognitionself-supervised learningsmart environmentsCSIhuman recognition |
| spellingShingle | Hamada Rizk Ahmed Elmogy Self-Supervised WiFi-Based Identity Recognition in Multi-User Smart Environments Sensors WiFi sensing identity recognition self-supervised learning smart environments CSI human recognition |
| title | Self-Supervised WiFi-Based Identity Recognition in Multi-User Smart Environments |
| title_full | Self-Supervised WiFi-Based Identity Recognition in Multi-User Smart Environments |
| title_fullStr | Self-Supervised WiFi-Based Identity Recognition in Multi-User Smart Environments |
| title_full_unstemmed | Self-Supervised WiFi-Based Identity Recognition in Multi-User Smart Environments |
| title_short | Self-Supervised WiFi-Based Identity Recognition in Multi-User Smart Environments |
| title_sort | self supervised wifi based identity recognition in multi user smart environments |
| topic | WiFi sensing identity recognition self-supervised learning smart environments CSI human recognition |
| url | https://www.mdpi.com/1424-8220/25/10/3108 |
| work_keys_str_mv | AT hamadarizk selfsupervisedwifibasedidentityrecognitioninmultiusersmartenvironments AT ahmedelmogy selfsupervisedwifibasedidentityrecognitioninmultiusersmartenvironments |