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Ultra-wideband (UWB) is the state-of-the-art and most popular technology for wireless localization. Nevertheless, precise ranging and localization in non-line-of-sight (NLoS) conditions is still an open research topic. Indeed, multipath…

Machine Learning · Computer Science 2021-05-06 Simone Angarano , Vittorio Mazzia , Francesco Salvetti , Giovanni Fantin , Marcello Chiaberge

WiFi-based indoor localization is essential for asset tracking, healthcare monitoring, and smart buildings. However, existing systems face challenges such as data variability, environmental noise, and difficulty detecting floor and building…

The unsupervised 3D object detection is to accurately detect objects in unstructured environments with no explicit supervisory signals. This task, given sparse LiDAR point clouds, often results in compromised performance for detecting…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Ruiyang Zhang , Hu Zhang , Hang Yu , Zhedong Zheng

WiFi fingerprint-based indoor localization has been widely studied, but most existing approaches focus on absolute positioning and rely on dense coordinate annotations, which are costly to obtain at scale. In this paper, we study a…

Signal Processing · Electrical Eng. & Systems 2026-05-19 Tzu-Ti Wei , Po-Cheng Chen , Yu-Chee Tseng , Jen-Jee Chen

Advances in wireless localization techniques aiming to exploit context-dependent data has been leading to a growing interest in services able of localizing or tracking targets inside buildings with high accuracy and precision. Hence, the…

Networking and Internet Architecture · Computer Science 2023-12-19 Fabien Geyer , Thomas Multerer , Paulo Mendes , Dominic Schupke

Deep learning has been widely adopted for channel state information (CSI)-fingerprinting indoor localization systems. These systems usually consist of two main parts, i.e., a positioning network that learns the mapping from high-dimensional…

Signal Processing · Electrical Eng. & Systems 2023-10-11 Bowen Zhang , Houssem Sifaou , Geoffrey Ye Li

WiFi fingerprinting is one of the mainstream technologies for indoor localization. However, it requires an initial calibration phase during which the fingerprint database is built manually. This process is labour intensive and needs to be…

Computers and Society · Computer Science 2021-06-28 Ahmed Shokry , Moustafa Elhamshary , Moustafa Youssef

Localization has been a challenging task for autonomous navigation. A loop detection algorithm must overcome environmental changes for the place recognition and re-localization of robots. Therefore, deep learning has been extensively…

Robotics · Computer Science 2023-04-19 Alex Junho Lee , Seungwon Song , Hyungtae Lim , Woojoo Lee , Hyun Myung

Despite the advancements in deep learning for camera relocalization tasks, obtaining ground truth pose labels required for the training process remains a costly endeavor. While current weakly supervised methods excel in lightweight label…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Jialu Wang , Kaichen Zhou , Andrew Markham , Niki Trigoni

The trend towards autonomous driving and the continuous research in the automotive area, like Advanced Driver Assistance Systems (ADAS), requires an accurate localization under all circumstances. An accurate estimation of the vehicle state…

Signal Processing · Electrical Eng. & Systems 2020-05-15 Eduardo Sánchez Morales , Michael Botsch , Bertold Huber , Andrés García Higuera

Recently, commercial ultra-wideband (UWB) transceivers have enabled not only measuring device-to-device distance but also tracking the position of a pedestrian who does not carry a UWB device. UWB-based device-free localization that does…

Signal Processing · Electrical Eng. & Systems 2025-07-21 Hyun Seok Lee

In this communication revolution era, visible light communication (VLC) is the optimum efficacious answer to the increased request for high-speed data transmission with reduced cost, besides the illumination. This technology is considered…

Signal Processing · Electrical Eng. & Systems 2022-09-16 Vailet Hikmat Faraj Al Khattat , Siti Barirah Ahmad Anas , Abdu Saif

In this paper, a novel framework is proposed for channel charting (CC)-aided localization in millimeter wave networks. In particular, a convolutional autoencoder model is proposed to estimate the three-dimensional location of wireless user…

Networking and Internet Architecture · Computer Science 2021-08-19 Qianqian Zhang , Walid Saad

The ubiquitous presence of WiFi access points and mobile devices capable of measuring WiFi signal strengths allow for real-world applications in indoor localization and mapping. In particular, no additional infrastructure is required.…

Networking and Internet Architecture · Computer Science 2021-06-21 Bastian Schaefermeier , Gerd Stumme , Tom Hanika

With the recent development of technology, wireless sensor networks (WSN) are becoming an important part of many applications. Knowing the exact location of each sensor in the network is very important issue. Therefore, the localization…

Networking and Internet Architecture · Computer Science 2016-06-27 Biljana Risteska Stojkoska , Vesna Kirandziska

This paper studies a WiFi indoor localisation technique based on using a deep learning model and its transfer strategies. We take CSI packets collected via the WiFi standard channel sounding as the training dataset and verify the CNN model…

Machine Learning · Computer Science 2021-03-10 Peizheng Li , Han Cui , Aftab Khan , Usman Raza , Robert Piechocki , Angela Doufexi , Tim Farnham

Development and testing of multi-robot systems employing wireless signal-based sensing requires access to suitable hardware, such as channel monitoring WiFi transceivers, which can pose significant limitations. The WiFi Sensor for Robotics…

Location knowledge in indoor environment using Indoor Positioning Systems (IPS) has become very useful and popular in recent years. Indoor wireless localization suffers from severe multi-path fading and non-line-of-sight conditions. This…

Systems and Control · Electrical Eng. & Systems 2023-09-26 Gang Wang , Zuxuan Zhang

WiFi and security pose both an issue and act as a growing presence in everyday life. Today's motions detection implementations are severely lacking in the areas of secrecy, scope, and cost. To combat this problem, we aim to develop a motion…

Signal Processing · Electrical Eng. & Systems 2019-08-23 Sadhana Lolla , Amy Zhao

Indoor localization faces persistent challenges in achieving high accuracy, particularly in GPS-deprived environments. This study unveils a cutting-edge handheld indoor localization system that integrates 2D LiDAR and IMU sensors,…

Robotics · Computer Science 2025-05-14 Saqi Hussain Kalan , Boon Giin Lee , Wan-Young Chung
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