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Internet of Things (IoT) applications are increasingly reliant on indoor positioning systems to deliver precise and reliable navigation in GNSS-denied environments, including urban areas, smart warehouses, hospitals, and underground or…

Signal Processing · Electrical Eng. & Systems 2025-01-16 Ma'mon Saeed Alghananim , Yuxiang Feng , Washington Yotto Ochieng

On the of the applications in the realm of the Internet-of-Things (IoT) is real-time localization of assets in specific application environments where satellite based global positioning is unviable. Numerous approaches for localization…

Signal Processing · Electrical Eng. & Systems 2022-10-24 Nuno Paulino , Luís M. Pessoa , André Branquinho , Edgar Gonçalves

Accurate and low-power indoor localization is becoming more and more of a necessity to empower novel consumer and industrial applications. In this field, the most promising technology is based on UWB modulation; however, current UWB…

Signal Processing · Electrical Eng. & Systems 2023-12-22 Tobias Margiani , Silvano Cortesi , Milena Keller , Christian Vogt , Tommaso Polonelli , Michele Magno

The Bluetooth Special Interest Group (Bluetooth SIG) introduced a new feature for highly accurate localization called the Direction Finding in the Bluetooth Core Specification 5.1. Since this new localization feature is relatively new,…

Networking and Internet Architecture · Computer Science 2021-03-09 Pradeep Sambu , Myounggyu Won

Internet of Things (IoT) device localization is fundamental to smart home functionalities, including indoor navigation and tracking of individuals. Traditional localization relies on relative methods utilizing the positions of anchors…

Information Theory · Computer Science 2024-07-04 Yan Li , Jie Yang , Shang-Ling Shih , Wan-Ting Shih , Chao-Kai Wen , Shi Jin

The continuously increasing bandwidth and antenna aperture available in wireless networks laid the foundation for developing competitive positioning solutions relying on communications standards and hardware. However, poor propagation…

As we move towards 6G, the demand for high-precision, cost-effective positioning solutions becomes increasingly critical. Single-anchor positioning offers a promising alternative to traditional multi-anchor approaches, particularly in…

Signal Processing · Electrical Eng. & Systems 2026-01-06 Thodoris Spanos , Fran Fabra , José A. López-Salcedo , Gonzalo Seco-Granados , Nikos Kanistras , Ivan Lapin , Vassilis Paliouras

Accurate positioning is a key enabler for emerging 5G applications. While the standardized Location Management Function (LMF) operates centrally within the core network, its scalability and latency limitations hinder low-latency and…

Networking and Internet Architecture · Computer Science 2025-11-18 Alberto Ceresoli , Viola Bernazzoli , Roberto Pegurri , Ilario Filippini

One significant challenge in research is to collect a large amount of data and learn the underlying relationship between the input and the output variables. This paper outlines the process of collecting and validating a dataset designed to…

This paper presents a comprehensive exploration of Angle of Arrival (AoA) estimation techniques in 5G environments, using the Sounding Reference Signal (SRS) in Uplink scenarios both in simulations and with actual measurements. Leveraging…

Signal Processing · Electrical Eng. & Systems 2024-11-26 Thodoris Spanos , Fran Fabra , José A. López-Salcedo , Gonzalo Seco-Granados , Nikos Kanistras , Ivan Lapin , Vassilis Paliouras

The angle of Arrival (AoA) estimation is of great interest in modern communication systems. Traditional maximum likelihood-based iterative algorithms are sensitive to initialization and cannot be used online. We propose a Bayesian method to…

Signal Processing · Electrical Eng. & Systems 2021-10-18 Akshay Sharma , Nancy Nayak , Sheetal Kalyani

Bluetooth is a promising short-range radio network technology. We present a low cost and easily deployed, scalable infrastructure for indoor location-based computing of mobile devices based on Bluetooth technology. The system consists of 2…

Networking and Internet Architecture · Computer Science 2012-08-09 Zaafir Barahim , M. Razvi Doomun , Nazrana Joomun

Devices that detect angle-of-arrival (AoA) over a wide field of view are crucial for various applications such as wireless communication and navigation. They are often installed on platforms with challenging mechanical and stealth…

Signal Processing · Electrical Eng. & Systems 2025-07-08 Idban Alamzadeh , Michael Inman , Mohammadreza F. Imani

In this paper, a novel cooperation-aided localization and tracking approach, suitable for terahertz (THz) wireless systems is presented. It combines an angle of arrival (AoA) tracking algorithm with the two-way time of arrival method, in…

Signal Processing · Electrical Eng. & Systems 2019-10-21 Giorgos Stratidakis , Alexandros-Apostolos A. Boulogeorgos , Angeliki Alexiou

Indoor localization has recently witnessed an increase in interest, due to the potential wide range of services it can provide by leveraging Internet of Things (IoT), and ubiquitous connectivity. Different techniques, wireless technologies…

Networking and Internet Architecture · Computer Science 2019-01-18 Faheem Zafari , Athanasios Gkelias , Kin Leung

Direction finding and positioning systems based on RF signals are significantly impacted by multipath propagation, particularly in indoor environments. Existing algorithms (e.g MUSIC) perform poorly in resolving Angle of Arrival (AoA) in…

Signal Processing · Electrical Eng. & Systems 2021-12-13 Zhuangzhuang Dai , Yuhang He , Tran Vu , Niki Trigoni , Andrew Markham

We investigate hand gesture recognition by leveraging passive reflective tags worn on the body. Considering a large set of gestures, distinct patterns are difficult to be captured by learning algorithms using backscattered received signal…

Signal Processing · Electrical Eng. & Systems 2026-04-01 Sahar Golipoor , Reza Ghazalian , Ines Lobato Mesquita , Stephan Sigg

Robust pedestrian safety is crucial to the next-generation of intelligent transportation systems. Such systems rely on active pedestrian localization and predictive collision alerts. Pedestrian localization can be supported by…

Robotics · Computer Science 2026-05-19 Joshua Varughese , Joseba Gorospe , Novel Certad , Cristina Olaverri-Monreal

The vast amount of spectrum available for millimeter wave (mmWave) wireless communication systems will support accurate real-time positioning concurrent with communication signaling. This paper demonstrates that accurate estimates of the…

Information Theory · Computer Science 2018-08-23 Ojas Kanhere , Theodore S. Rappaport

Large-scale MIMO systems are well known for their advantages in communications, but they also have the potential for providing very accurate localization thanks to their high angular resolution. A difficult problem arising indoors and…

Information Theory · Computer Science 2017-02-13 Nil Garcia , Henk Wymeersch , Erik G. Larsson , Alexander M. Haimovich , Martial Coulon
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