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In the emerging high mobility Vehicle-to-Everything (V2X) communications using millimeter Wave (mmWave) and sub-THz, Multiple-Input Multiple-Output (MIMO) channel estimation is an extremely challenging task. At mmWaves/sub-THz frequencies,…

Several studies have explored deep learning algorithms to predict large-scale signal fading, or path loss, in urban communication networks. The goal is to replace costly measurement campaigns, inaccurate statistical models, or…

信号处理 · 电气工程与系统科学 2025-06-24 Fabian Jaensch , Giuseppe Caire , Begüm Demir

Visible light positioning has the potential to yield sub-centimeter accuracy in indoor environments, yet conventional received signal strength (RSS)-based localization algorithms cannot achieve this because their performance degrades from…

信息论 · 计算机科学 2022-11-08 Hamid Hosseinianfar , Hami Rabbani , Maite Brandt-Pearce

This paper addresses vehicle positioning, a topic whose importance has risen dramatically in the context of future autonomous driving systems. While classical methods that use GPS and/or beacon signals from network infrastructure for…

信号处理 · 电气工程与系统科学 2021-02-10 Xinghe Chu , Zhaoming Lu , David Gesbert , Luhan Wang , Xiangming Wen

Extracting direct-path spatial feature is crucial for sound source localization in adverse acoustic environments. This paper proposes the IPDnet, a neural network that estimates direct-path inter-channel phase difference (DP-IPD) of sound…

音频与语音处理 · 电气工程与系统科学 2024-05-14 Yabo Wang , Bing Yang , Xiaofei Li

In signal detection problems, one is usually faced with the task of searching a parameter space for peaks in the likelihood function which indicate the presence of a signal. Random searches have proven to be very efficient as well as easy…

广义相对论与量子宇宙学 · 物理学 2010-10-08 Christian Röver

Enabling highly-mobile millimeter wave (mmWave) and terahertz (THz) wireless communication applications requires overcoming the critical challenges associated with the large antenna arrays deployed at these systems. In particular, adjusting…

信号处理 · 电气工程与系统科学 2021-11-16 Gouranga Charan , Tawfik Osman , Andrew Hredzak , Ngwe Thawdar , Ahmed Alkhateeb

Over the last years, several works have explored the application of deep learning algorithms to determine the large-scale signal fading (also referred to as ``path loss'') between transmitter and receiver pairs in urban communication…

网络与互联网体系结构 · 计算机科学 2024-10-28 Fabian Jaensch , Giuseppe Caire , Begüm Demir

In this work, we consider the random access of nodes adapting their transmission probability based on the local channel state information (CSI) in a decentralized manner, which is called CARA. The CSI is not directly available to each node…

信息论 · 计算机科学 2013-02-21 Jeongho Jeon , Anthony Ephremides

Deep convolutional neural networks are used to address many computer vision problems, including video prediction. The task of video prediction requires analyzing the video frames, temporally and spatially, and constructing a model of how…

计算机视觉与模式识别 · 计算机科学 2018-10-17 Niloofar Azizi , Hafez Farazi , Sven Behnke

Deep neural networks have frequently been used to directly learn representations useful for a given task from raw input data. In terms of overall performance metrics, machine learning solutions employing deep representations frequently have…

机器学习 · 计算机科学 2019-10-21 Jaehun Kim , Julián Urbano , Cynthia C. S. Liem , Alan Hanjalic

Multi-point detection of the full-scale environment is an important issue in autonomous driving. The state-of-the-art positioning technologies (such as RADAR and LIDAR) are incapable of real-time detection without line-of-sight. To address…

信息论 · 计算机科学 2019-05-01 Zezhong Zhang , Seung-Woo Ko , Rui Wang , Kaibin Huang

In dark channel based methods, local constant assumption is widely used to make the algorithms invertible. It inevitably introduces defects since the assumption can not perfectly avoid depth discontinuities and meanwhile cover enough…

计算机视觉与模式识别 · 计算机科学 2019-04-30 Zhu Mingzhu , He Bingwei , Liu Jiantao

Millimeter wave signals with multiple transmit and receive antennas are considered as enabling technology for enhanced mobile broadband services in 5G systems. While this combination is mainly associated with achieving high data rates, it…

信息论 · 计算机科学 2018-08-03 Rico Mendrzik , Henk Wymeersch , Gerhard Bauch

In this article we analyze the state-of-the-art in multilateration - the family of localization methods enabled by the range difference observations. These methods are computationally efficient, signal-independent, and flexible with regards…

声音 · 计算机科学 2020-07-29 Srđan Kitić , Clément Gaultier , Grégory Pallone

Image metrics predict the perceived per-pixel difference between a reference image and its degraded (e. g., re-rendered) version. In several important applications, the reference image is not available and image metrics cannot be applied.…

This study presents the first comprehensive comparison of rule-based methods, traditional machine learning models, and deep learning models in radio wave sensing with frequency modulated continuous wave multiple input multiple output radar.…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Tomoya Tanaka , Tomonori Ikeda , Ryo Yonemoto

The application of radio-based positioning systems is ever increasing. In light of the dissemination of the Internet of Things and location-aware communication systems, the demands on localization architectures and amount of possible use…

信号处理 · 电气工程与系统科学 2022-07-19 Andrea Jung , Paul Schwarzbach , Oliver Michler

Sixth generation (6G) cellular communications are expected to support enhanced wireless localization capabilities. The widespread deployment of large arrays and high-frequency bandwidths give rise to new considerations for localization…

信号处理 · 电气工程与系统科学 2022-10-31 Qianyu Yang , Anna Guerra , Francesco Guidi , Nir Shlezinger , Haiyang Zhang , Davide Dardari , Baoyun Wang , Yonina C. Eldar

Machine learning methods rely on data. However, gathering suitable data can be challenging due to availability constraints, cost, or the need for domain expertise. Expanding datasets with additional sources is a common response to limited…

机器学习 · 计算机科学 2026-05-25 Xavier Cadet , Mateusz Nowak , Peter Chin