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Wi-Fi fingerprinting remains one of the most practical solutions for indoor positioning, however, its performance is often limited by the size and heterogeneity of fingerprint datasets, strong Received Signal Strength Indicator variability,…

Machine Learning · Computer Science 2026-01-12 Miguel Matey-Sanz , Joaquín Torres-Sospedra , Joaquín Huerta , Sergio Trilles

With recent progress in deep generative models, the problem of identifying synthetic data and comparing their underlying generative processes has become an imperative task for various reasons, including fighting visual misinformation and…

Machine Learning · Computer Science 2022-06-07 Hae Jin Song , Wael AbdAlmageed

With the ongoing development of Indoor Location-Based Services, the location information of users in indoor environments has been a challenging issue in recent years. Due to the widespread use of WiFi networks, WiFi fingerprinting has…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-06-05 Amin Kargar-Barzi , Ebrahim Farahmand , Nooshin Taheri Chatrudi , Ali Mahani , Muhammad Shafique

Channel state information (CSI) based fingerprinting for WIFI indoor localization has attracted lots of attention very recently.The frequency diverse and temporally stable CSI better represents the location dependent channel characteristics…

Networking and Internet Architecture · Computer Science 2021-07-06 Zhihui Gao , Yunfan Gao , Sulei Wang , Dan Li , Yuedong Xu

Radio based positioning of a user equipment (UE) based on deep learning (DL) methods using channel state information (CSI) fingerprints have shown promising results. DL models are able to capture complex properties embedded in the CSI about…

Signal Processing · Electrical Eng. & Systems 2022-10-27 Anastasios Foliadis , Mario H. Castañeda Garcia , Richard A. Stirling-Gallacher , Reiner S. Thomä

Deep-learning-based device fingerprinting has recently been recognized as a key enabler for automated network access authentication. Its robustness to impersonation attacks due to the inherent difficulty of replicating physical features is…

Machine Learning · Computer Science 2022-09-01 Bechir Hamdaoui , Abdurrahman Elmaghbub

Indoor localization systems commonly rely on fingerprinting, which requires extensive survey efforts to obtain location-tagged signal data, limiting their real-world deployability. Recent approaches that attempt to reduce this overhead…

Machine Learning · Computer Science 2025-11-25 Abdelrahman Abdelmotlb , Abdallah Taman , Sherif Mostafa , Moustafa Youssef

Relocalization is a fundamental task in the field of robotics and computer vision. There is considerable work in the field of deep camera relocalization, which directly estimates poses from raw images. However, learning-based methods have…

Robotics · Computer Science 2021-03-23 Wei Wang , Pedro P. B. de Gusmo , Bo Yang , Andrew Markham , Niki Trigoni

The paradigm shift from environment-unaware communication to intelligent environment-aware communication is expected to facilitate the acquisition of channel state information for future wireless communications. Channel Fingerprint (CF), as…

Networking and Internet Architecture · Computer Science 2026-05-27 Zhenzhou Jin , Li You , Xiang-Gen Xia , Xiqi Gao

Indoor localization services are a crucial aspect for the realization of smart cyber-physical systems within cities of the future. Such services are poised to reinvent the process of navigation and tracking of people and assets in a variety…

Networking and Internet Architecture · Computer Science 2021-04-16 Saideep Tiku , Prathmesh Kale , Sudeep Pasricha

Using RF signals for wireless sensing has gained increasing attention. However, due to the unwanted multi-path fading in uncontrollable radio environments, the accuracy of RF sensing is limited. Instead of passively adapting to the…

Signal Processing · Electrical Eng. & Systems 2020-11-26 Jingzhi Hu , Hongliang Zhang , Kaigui Bian , Marco Di Renzo , Zhu Han , Lingyang Song

In our prior work we have proposed the use of GFlowNets, a generative AI (GenAI) framework, for designing a secure communication system comprising a time-modulated intelligent reflecting surface (TM-IRS). However, GFlowNet-based approaches…

Signal Processing · Electrical Eng. & Systems 2025-11-11 Zhihao Tao , Athina P. Petropulu

Device-free Wi-Fi sensing has numerous benefits in practical settings, as it eliminates the requirement for dedicated sensing devices and can be accomplished using current low-cost Wi-Fi devices. With the development of Wi-Fi standards,…

Signal Processing · Electrical Eng. & Systems 2025-06-16 Wenbo Ding , Yang Li , Dongsheng Wang , Bin Zhao , Yunrong Zhu , Yibo Zhang , Yumeng Miao

Localization is a key component of the wireless ecosystem. Machine learning (ML)-based localization using channel state information (CSI) is one of the most popular methods for achieving high-accuracy localization with low cost. However, to…

Signal Processing · Electrical Eng. & Systems 2026-05-08 Yuning Zhang , Lei Chu , Omer Gokalp Serbetci , Jorge Gomez-Ponce , Andreas F. Molisch

Accurate and robust wireless localization is a key enabler for a wide range of mobile computing applications. Fingerprint-based localization using channel state information (CSI) has attracted significant attention due to its high accuracy…

Signal Processing · Electrical Eng. & Systems 2026-03-09 Haoyu Huang , Guangjin Pan , Kaixuan Huang , Shunqing Zhang , Yuhao Zhang , Musa Furkan Keskin , Zheng Xing , Henk Wymeersch

Fingerprint-based indoor localization is often labor-intensive due to the need for dense grids and repeated measurements across time and space. Maintaining high localization accuracy with extremely sparse fingerprints remains a persistent…

Machine Learning · Computer Science 2025-04-08 Wenzhong Yan , Feng Yin , Jun Gao , Ao Wang , Yang Tian , Ruizhi Chen

Wireless localization has become a promising technology for offering intelligent location-based services. Although its localization accuracy is improved under specific scenarios, the short of environmental dynamic vulnerability still…

Signal Processing · Electrical Eng. & Systems 2025-08-06 Lingyan Zhang , Yuanfeng Qiu , Dachuan Li , Shaohua Wu , Tingting Zhang , Qinyu Zhang

Fingerprint recognition has been utilized for cellphone authentication, airport security and beyond. Many different features and algorithms have been proposed to improve fingerprint recognition. In this paper, we propose an end-to-end deep…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Shervin Minaee , Elham Azimi , Amirali Abdolrashidi

We propose a method for predicting the location of user equipment (UE) using wireless fingerprints in dynamic indoor non-line-of-sight (NLoS) environments. In particular, our method copes with the challenges posed by the drift, birth, and…

Signal Processing · Electrical Eng. & Systems 2024-08-28 Rafail Ismayilov , Renato L. G. Cavalcante , Slawomir Stanczak

Recent device fingerprinting approaches rely on deep learning to extract device-specific features solely from raw RF signals to identify, classify and authenticate wireless devices. One widely known issue lies in the inability of these…

Machine Learning · Computer Science 2022-11-16 Bechir Hamdaoui , Abdurrahman Elmaghbub