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Accurate localization of mobile terminals is crucial for integrated sensing and communication systems. Existing fingerprint localization methods, which deduce coordinates from channel information in pre-defined rectangular areas, struggle…

Information Theory · Computer Science 2024-11-26 Bohao Wang , Fenghao Zhu , Mengbing Liu , Chongwen Huang , Qianqian Yang , Ahmed Alhammadi , Zhaoyang Zhang , Mérouane Debbah

Existing localization methods that intensively leverage the environment-specific received signal strength (RSS) or channel state information (CSI) of wireless signals are rather accurate in certain environments. However, these methods,…

Signal Processing · Electrical Eng. & Systems 2023-08-30 Jun Gao , Dongze Wu , Feng Yin , Qinglei Kong , Lexi Xu , Shuguang Cui

This paper introduces a new approach to localize user devices located in non-line-of-sight (NLOS) areas using a passive, non-reconfigurable, and frequency-selective metasurface called metaprism. By analyzing the spatial filtering of…

Signal Processing · Electrical Eng. & Systems 2023-07-25 Marina Lotti , Giacomo Calesini , Davide Dardari

Existing fingerprinting-based localization methods often require extensive data collection and struggle to generalize to new environments. In contrast to previous environment-unknown MetaLoc, we propose GenMetaLoc in this paper, which first…

Signal Processing · Electrical Eng. & Systems 2025-03-25 Jun Gao , Feng Yin , Wenzhong Yan , Qinglei Kong , Lexi Xu , Shuguang Cui

With the widespread application of location-based services, fingerprint-based localization has demonstrated advantages in environments with complex signal propagation. Deep learning has significantly improved the efficiency of both offline…

Information Theory · Computer Science 2026-05-27 Yu Zhao , Zhenzhou Jin , Jinke Tang , Li You , Chen Sun , Xiang-Gen Xia , Xiqi Gao

Fingerprinting-based localization often suffers from poor cross-environment generalization, especially when only a few labeled samples are available in the target environment. Existing methods mitigate distribution shifts through domain…

Signal Processing · Electrical Eng. & Systems 2026-05-20 Jun Gao , Zheng Xing , Wenliang Lin , Weibing Zhao , Xuhui Zhang , Junting Chen , Zhongliang Deng , Shuguang Cui

Accurate indoor localization remains challenging due to variations in wireless signal environments and limited data availability. This paper introduces MetaGraphLoc, a novel system leveraging sensor fusion, graph neural networks (GNNs), and…

Signal Processing · Electrical Eng. & Systems 2024-11-28 Yaya Etiabi , Eslam Eldeeb , Mohammad Shehab , Wafa Njima , Hirley Alves , Mohamed-Slim Alouini , El Mehdi Amhoud

Most existing fingerprints-based indoor localization approaches are based on some single fingerprints, such as received signal strength (RSS), channel impulse response (CIR), and signal subspace. However, the localization accuracy obtained…

Machine Learning · Statistics 2017-12-21 Xiansheng Guo , Nirwan Ansari

Fingerprint-based localization plays an important role in indoor location-based services, where the position information is usually collected in distributed clients and gathered in a centralized server. However, the overloaded transmission…

Signal Processing · Electrical Eng. & Systems 2022-03-30 Xin Cheng , Chuan Ma , Jun Li , Haiwei Song , Feng Shu , Jiangzhou Wang

Federated learning is a recent development in the machine learning area that allows a system of devices to train on one or more tasks without sharing their data to a single location or device. However, this framework still requires a…

Machine Learning · Computer Science 2024-01-11 Guangyao Zheng , Michael A. Jacobs , Vladimir Braverman , Vishwa S. Parekh

Fine-grained indoor localization has attracted attention recently because of the rapidly growing demand for indoor location-based services (ILBS). Specifically, massive (large-scale) multiple-input and multiple-output (MIMO) systems have…

Signal Processing · Electrical Eng. & Systems 2021-09-17 Chenglong Li , Sibren De Bast , Emmeric Tanghe , Sofie Pollin , Wout Joseph

In this paper, we consider the user positioning problem in the massive multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) system with a uniform planner antenna (UPA) array. Taking advantage of the UPA…

Signal Processing · Electrical Eng. & Systems 2019-11-15 Chi Wu , Xinping Yi , Wenjin Wang , Li You , Qing Huang , Xiqi Gao

Localization is a critical technology for various applications ranging from navigation and surveillance to assisted living. Localization systems typically fuse information from sensors viewing the scene from different perspectives to…

Computer Vision and Pattern Recognition · Computer Science 2024-06-12 Jason Wu , Ziqi Wang , Xiaomin Ouyang , Ho Lyun Jeong , Colin Samplawski , Lance Kaplan , Benjamin Marlin , Mani Srivastava

This study explores the promising potential of integrating sensing capabilities into multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM)-based networks through innovative multi-sensor fusion techniques,…

Signal Processing · Electrical Eng. & Systems 2023-12-13 Elia Favarelli , Elisabetta Matricardi , Lorenzo Pucci , Wen Xu , Enrico Paolini , Andrea Giorgetti

The fundamental limits of single-anchor multi-antenna positioning are investigated. Exploiting the structure of the multiple input-multiple output-orthogonal frequency division multiplexing (MIMO-OFDM) channel at millimeter-wave…

Information Theory · Computer Science 2020-12-04 Anastasios Kakkavas , Mario H. Castañeda García , Richard A. Strirling-Gallacher , Josef A. Nossek

This paper considers networked device-free sensing in an orthogonal frequency division multiplexing (OFDM) cellular system with multipath environment, where the passive targets reflect the downlink signals to the base stations (BSs) via…

Signal Processing · Electrical Eng. & Systems 2024-09-25 Qin Shi , Liang Liu

Automatic modulation classification (AMC) plays a vital role in advancing future wireless communication networks. Although deep learning (DL)-based AMC frameworks have demonstrated remarkable classification capabilities, they typically…

Signal Processing · Electrical Eng. & Systems 2025-09-23 Hao Zhang , Fuhui Zhou , Qihui Wu , Chau Yuen

The rapid growth of the Internet of Things fosters collaboration among connected devices for tasks like indoor localization. However, existing indoor localization solutions struggle with dynamic and harsh conditions, requiring extensive…

Signal Processing · Electrical Eng. & Systems 2024-05-21 Yaya Etiabi , Wafa Njima , El Mehdi Amhoud

The past decade has witnessed significant progress on detecting objects in aerial images that are often distributed with large scale variations and arbitrary orientations. However most of existing methods rely on heuristically defined…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Jiaming Han , Jian Ding , Jie Li , Gui-Song Xia

High-precision navigation and positioning systems are critical for applications in autonomous vehicles and mobile mapping, where robust and continuous localization is essential. To test and enhance the performance of algorithms, some…

Robotics · Computer Science 2025-08-01 Feng Zhu , Zihang Zhang , Kangcheng Teng , Abduhelil Yakup , Xiaohong Zhang
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