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Millimeter-wave (mmWave) frequencies promise multi-gigabit connectivity for vehicle-to-everything (V2X) networks, but face challenges in terms of severe path loss and mobility-related beam misalignment. Reliable V2X connectivity requires…

网络与互联网体系结构 · 计算机科学 2026-05-07 Avhishek Biswas , Apala Pramanik , Eylem Ekici , Mehmet C. Vuran

Position-aided beam selection methods have been shown to be an effective approach to achieve high beamforming gain while limiting the overhead and latency of initial access in millimeter wave (mmWave) communications. Most research in the…

信号处理 · 电气工程与系统科学 2021-10-14 Sajad Rezaie , Elisabeth de Carvalho , Carles Navarro Manchón

Fast and precise beam alignment is crucial to support high-quality data transmission in millimeter wave (mmWave) communication systems. In this work, we propose a novel deep learning based hierarchical beam alignment method that learns two…

信号处理 · 电气工程与系统科学 2022-09-09 Junyi Yang , Weifeng Zhu , Meixia Tao

Recently, millimeter wave (mmWave) bands have been investigated as a means to enhance automated driving and address the challenging data rate and latency demands of emerging automotive applications. For the development of those systems to…

网络与互联网体系结构 · 计算机科学 2019-07-25 Marco Giordani , Takayuki Shimizu , Andrea Zanella , Takamasa Higuchi , Onur Altintas , Michele Zorzi

Distributed deep neural networks (DNNs) have become central to modern computer vision, yet their deployment on resource-constrained edge devices remains hindered by substantial parameter counts, computational demands, and the probability of…

分布式、并行与集群计算 · 计算机科学 2026-02-17 Mahadev Sunil Kumar , Arnab Raha , Debayan Das , Gopakumar G , Rounak Chatterjee , Amitava Mukherjee

The prediction of upcoming events in industrial processes has been a long-standing research goal since it enables optimization of manufacturing parameters, planning of equipment maintenance and more importantly prediction and eventually…

Millimeter wave (mmWave) technologies will support the high bandwidth and data rate requirements of V2X services demanded by connected and automated vehicles (CAVs). MmWave V2X technologies will leverage directional antennas that challenge…

信号处理 · 电气工程与系统科学 2021-12-24 Baldomero Coll-Perales , Javier Gozalvez , Esteban Egea-Lopez

Since the beam squint and near-field effects both inherently exist in upper-6 GHz (U6G) extremely large-scale multiple-input multiple-output (XL-MIMO) systems, wideband near-field channel estimation faces severe challenges, such as higher…

信号处理 · 电气工程与系统科学 2026-05-22 Zhizheng Lu , Yu Han , Xiao Li , Shi Jin , Michail Matthaiou

We propose a fixed wing unmanned aerial vehicles (UAV)-based millimeter wave (mmWave) backhaul links, that is offered as a cost effective and easy to deploy solution, to connect a disaster or remote area to the nearest core network. First,…

信号处理 · 电气工程与系统科学 2022-04-13 Mohammad Taghi Dabiri , Mazen Omar Hasna , Nizar Zorba , Tamer Khattab

Millimeter-Wave (mm-Wave) frequency bands provide an opportunity for much wider channel bandwidth compared with the traditional sub-6 GHz band. Communication at mm-Waves is, however, quite challenging due to the severe propagation path…

信息论 · 计算机科学 2017-10-19 Xiaoshen Song , Saeid Haghighatshoar , Giuseppe Caire

Brain signal visualization has emerged as an active research area, serving as a critical interface between the human visual system and computer vision models. Although diffusion models have shown promise in analyzing functional magnetic…

计算机视觉与模式识别 · 计算机科学 2023-12-19 Bohan Zeng , Shanglin Li , Xuhui Liu , Sicheng Gao , Xiaolong Jiang , Xu Tang , Yao Hu , Jianzhuang Liu , Baochang Zhang

Existing deep learning based visual servoing approaches regress the relative camera pose between a pair of images. Therefore, they require a huge amount of training data and sometimes fine-tuning for adaptation to a novel scene.…

机器人学 · 计算机科学 2020-03-10 Y V S Harish , Harit Pandya , Ayush Gaud , Shreya Terupally , Sai Shankar , K. Madhava Krishna

802.11p based V2X communication uses stochastic medium access control, which cannot prevent broadcast packet collision, in particular during high channel load. Wireless congestion control has been designed to keep the channel load at an…

网络与互联网体系结构 · 计算机科学 2019-01-28 Mohammad Irfan Khan , François-Xavier Aubet , Marc-Oliver Pahl , Jérôme Härri

Channel estimation and beamforming play critical roles in frequency-division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems. However, these two modules have been treated as two stand-alone components, which makes it…

信号处理 · 电气工程与系统科学 2021-08-04 Yifan Ma , Yifei Shen , Xianghao Yu , Jun Zhang , S. H. Song , Khaled B. Letaief

The blockage is a key challenge for millimeter wave communication systems, since these systems mainly work on line-of-sight (LOS) links, and the blockage can degrade the system performance significantly. It is recently found that visual…

信号处理 · 电气工程与系统科学 2022-07-27 Ruijin Ding , Weihua Xu , Wanmai Yuan , Feifei Gao

This paper is about reducing the cost of building good large-scale 3D reconstructions post-hoc. We render 2D views of an existing reconstruction and train a convolutional neural network (CNN) that refines inverse-depth to match a…

计算机视觉与模式识别 · 计算机科学 2020-01-23 Ştefan Săftescu , Paul Newman

In safety-critical systems (e.g., autonomous vehicles and robots), Deep Neural Networks (DNNs) are becoming a key component for computer vision tasks, particularly semantic segmentation. Further, since the DNN behavior cannot be assessed…

软件工程 · 计算机科学 2025-03-21 Mohammed Oualid Attaoui , Fabrizio Pastore , Lionel Briand

For millimeter-wave (mmWave) non-orthogonal multiple access (NOMA) communication systems, we propose an innovative near-field (NF) transmission framework based on dynamic metasurface antenna (DMA) technology. In this framework, a base…

信号处理 · 电气工程与系统科学 2024-09-25 Yue Xiu , Yang Zhao , Songjie Yang , Yufeng Zhang , Dusit Niyato , Hongyang Du , Ning Wei

Beam selection for millimeter-wave links in a vehicular scenario is a challenging problem, as an exhaustive search among all candidate beam pairs cannot be assuredly completed within short contact times. We solve this problem via a novel…

In the future wireless networks, terrestrial, aerial, space, and maritime wireless networks are integrated into a unified network to meet the needs of a fully connected global network. Nowadays, vehicular communication has become one of the…

网络与互联网体系结构 · 计算机科学 2025-05-01 Hossein Davoudi , Behrouz Shahgholi Ghahfarokhi , Neda Moghim , Sachin Shetty