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Indoor localization is a challenging problem that - unlike outdoor localization - lacks a universal and robust solution. Machine Learning (ML), particularly Deep Learning (DL), methods have been investigated as a promising approach.…

Systems and Control · Electrical Eng. & Systems 2024-08-29 Omer Gokalp Serbetci , Daoud Burghal , Andreas F. Molisch

Localization is widely used in Wireless Sensor Networks (WSNs) to identify the current location of the sensor odes. A WSN consist of thousands of nodes that make the installation of GPS on each sensor node expensive and moreover GPS may not…

Networking and Internet Architecture · Computer Science 2014-11-03 Jeril Kuriakose , Sandeep Joshi , V. I. George

Deep neural networks (DNNs) have become a popular approach for wireless localization based on channel state information (CSI). A common practice is to use the raw CSI in the input and allow the network to learn relevant channel…

Signal Processing · Electrical Eng. & Systems 2022-12-07 Artan Salihu , Stefan Schwarz , Markus Rupp

In a wireless network, gathering information at the base station about mobile users based only on uplink channel measurements is an interesting challenge. Indeed, accessing the users locations and predicting their downlink channels would be…

Signal Processing · Electrical Eng. & Systems 2021-01-15 Luc Le Magoarou

In modern on-driving computing environments, many sensors are used for context-aware applications. This paper utilizes two deep learning models, U-Net and EfficientNet, which consist of a convolutional neural network (CNN), to detect hand…

Signal Processing · Electrical Eng. & Systems 2022-11-08 Hankyul Baek , Yoo Jeong , Ha , Minjae Yoo , Soyi Jung , Joongheon Kim

Millimeter-wave (mmWave) technology is increasingly recognized as a pivotal technology of the sixth-generation communication networks due to the large amounts of available spectrum at high frequencies. However, the huge overhead associated…

This paper deals with the problem of localization in a cellular network in a dense urban scenario. Global Navigation Satellite System typically performs poorly in urban environments when there is no line-of-sight between the devices and the…

Signal Processing · Electrical Eng. & Systems 2020-06-11 Çağkan Yapar , Ron Levie , Gitta Kutyniok , Giuseppe Caire

K-Neares Neighbors (KNN) and its variant weighted KNN (WKNN) have been explored for years in both academy and industry to provide stable and reliable performance in WiFi-based indoor positioning systems. Such algorithms estimate the…

Signal Processing · Electrical Eng. & Systems 2023-02-03 Yinhuan Dong , Francisco Zampella , Firas Alsehly

This paper presents a novel machine-hearing system that exploits deep neural networks (DNNs) and head movements for robust binaural localisation of multiple sources in reverberant environments. DNNs are used to learn the relationship…

Audio and Speech Processing · Electrical Eng. & Systems 2019-04-08 Ning Ma , Tobias May , Guy J. Brown

The quasi-optical propagation of millimeter-wave signals enables high-accuracy localization algorithms that employ geometric approaches or machine learning models. However, most algorithms require information on the indoor environment, may…

Signal Processing · Electrical Eng. & Systems 2024-07-31 Anish Shastri , Steve Blandino , Camillo Gentile , Chiehping Lai , Paolo Casari

As Wireless Sensor Networks are penetrating into the industrial domain, many research opportunities are emerging. One such essential and challenging application is that of node localization. A feed-forward neural network based methodology…

Networking and Internet Architecture · Computer Science 2016-10-17 Shiu Kumar , Ronesh Sharma , Edwin Vans

In massive multi-input multi-output (MIMO) systems, the main bottlenecks of location- and orientation-assisted beam alignment using deep neural networks (DNNs) are large training overhead and significant performance degradation. This paper…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Yuzhu Lei , Qiqi Xiao , Yinghui He , Guanding Yu

This paper provides an initial investigation on the application of convolutional neural networks (CNNs) for fingerprint-based positioning using measured massive MIMO channels. When represented in appropriate domains, massive MIMO channels…

Machine Learning · Statistics 2017-08-22 Joao Vieira , Erik Leitinger , Muris Sarajlic , Xuhong Li , Fredrik Tufvesson

Device-Free Localization (DFL) employs passive radio techniques capable to detect and locate people without imposing them to wear any electronic device. By exploiting the Integrated Sensing and Communication paradigm, DFL networks employ…

Signal Processing · Electrical Eng. & Systems 2024-05-17 Vittorio Rampa , Federica Fieramosca , Stefano Savazzi , Michele D'Amico

The advent of Artificial Intelligence (AI) has impacted all aspects of human life. One of the concrete examples of AI impact is visible in radio positioning. In this article, for the first time we utilize the power of AI by training a…

Signal Processing · Electrical Eng. & Systems 2022-06-29 Ghazaleh Kia , Laura Ruotsalainen , Jukka Talvitie

Predicting smartphone users activity using WiFi fingerprints has been a popular approach for indoor positioning in recent years. However, such a high dimensional time-series prediction problem can be very tricky to solve. To address this…

Machine Learning · Computer Science 2019-11-22 Weizhu Qian , Fabrice Lauri , Franck Gechter

Deep learning based on artificial neural networks is a powerful machine learning method that, in the last few years, has been successfully used to realize tasks, e.g., image classification, speech recognition, translation of languages,…

Information Theory · Computer Science 2019-06-18 Alessio Zappone , Marco Di Renzo , Mérouane Debbah , Thanh Tu Lam , Xuewen Qian

In this work, we propose a novel approach for high accuracy user localization by merging tools from both millimeter wave (mmWave) imaging and communications. The key idea of the proposed solution is to leverage mmWave imaging to construct a…

Information Theory · Computer Science 2018-11-20 Mohammed Aladsani , Ahmed Alkhateeb , Georgios C. Trichopoulos

This paper proposes a machine learning-assisted channel estimation approach for massive MIMO systems, leveraging DNNs to outperform traditional LS and MMSE methods. In 5G and beyond, accurate channel estimation mitigates pilot contamination…

Signal Processing · Electrical Eng. & Systems 2025-10-16 Haoran He

Large Deep Neural Networks (DNNs) are the backbone of today's artificial intelligence due to their ability to make accurate predictions when being trained on huge datasets. With advancing technologies, such as the Internet of Things,…

Machine Learning · Computer Science 2023-07-14 Mark Deutel , Philipp Woller , Christopher Mutschler , Jürgen Teich