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Future vehicular communication networks call for new solutions to support their capacity demands, by leveraging the potential of the millimeter-wave (mm-wave) spectrum. Mobility, in particular, poses severe challenges in their design, and…

信息论 · 计算机科学 2018-04-27 Maria Scalabrin , Nicolò Michelusi , Michele Rossi

Millimeter-wave communication is a challenge in the highly mobile vehicular context. Traditional beam training is inadequate in satisfying low overheads and latency. In this paper, we propose to combine machine learning tools and…

信息论 · 计算机科学 2018-05-24 Yuyang Wang , Murali Narasimha , Robert W. Heath

Predictive millimeter-wave (mmWave) beamforming is a promising technique to enable low-latency and high-rate ground-air communications for cellular-connected unmanned aerial vehicles (UAVs). However, the high vulnerability of mmWave to…

信号处理 · 电气工程与系统科学 2024-04-19 Shiqi Zeng , Xiaoli Xu , Yong Zeng

Millimeter Wave (mmWave) is an important part of 5G new radio (NR), in which highly directional beams are adapted to compensate for the substantial propagation loss based on UE locations. However, the location information may have some…

系统与控制 · 电气工程与系统科学 2022-04-26 Yujie Yao , Hao Zhou , Melike Erol-Kantarci

Emerging technologies in sixth generation (6G) of wireless communications, such as terahertz communication and ultra-massive multiple-input multiple-output, present promising prospects. Despite the high data rate potential of millimeter…

网络与互联网体系结构 · 计算机科学 2025-01-07 Wenwen Xie , Geng Sun , Bei Liu , Jiahui Li , Jiacheng Wang , Hongyang Du , Dusit Niyato , Dong In Kim

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

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

Beamforming techniques have been widely used in the millimeter wave (mmWave) bands to mitigate the path loss of mmWave radio links as the narrow straight beams by directionally concentrating the signal energy. However, traditional mmWave…

信息论 · 计算机科学 2023-04-03 Kan Zheng , Haojun Yang , Ziqiang Ying , Pengshuo Wang , Lajos Hanzo

Beam training and prediction in millimeter-wave communications are highly challenging due to fast time-varying channels and sensitivity to blockages and mobility. In this context, infrastructure-mounted cameras can capture rich…

信号处理 · 电气工程与系统科学 2026-01-29 Mengyuan Ma , Nhan Thanh Nguyen , Nir Shlezinger , Yonina C. Eldar , Markku Juntti

This paper aims to exploit the fundamental limits on the downlink coverage and spatial throughput performances of a cellular network comprised of a tier of unmanned aerial vehicle (UAV) base stations (BSs) using the millimeter wave (mmWave)…

信息论 · 计算机科学 2019-08-21 Chun-Hung Liu , Kai-Hsiang Ho , Jwo-Yuh Wu

The choice of the transmitting frequency to provide cellular-connected Unmanned Aerial Vehicle (UAV) reliable connectivity and mobility support introduce several challenges. Conventional sub-6 GHz networks are optimized for ground Users…

信号处理 · 电气工程与系统科学 2021-08-30 Gianluca Fontanesi , Anding Zhu , Hamed Ahmadi

Mobile users are prone to experience beam failure due to beam drifting in millimeter wave (mmWave) communications. Sensing can help alleviate beam drifting with timely beam changes and low overhead since it does not need user feedback. This…

信号处理 · 电气工程与系统科学 2025-05-12 Xiyu Wang , Gilberto Berardinelli , Hei Victor Cheng , Petar Popovski , Ramoni Adeogun

Hierarchical search in millimeter-wave (mmWave) communications incurs significant beam training overhead and delay, especially in a dynamic environment. Deep learning-enabled beam prediction is promising to significantly mitigate the…

信息论 · 计算机科学 2024-09-30 Tianheng Lu , Fan Meng , Zhilei Zhang , Yongming Huang , Cheng Zhang , Xiaoyu Bai

Cellular-connected unmanned aerial vehicle (UAV) is a promising technology to unlock the full potential of UAVs in the future. However, how to achieve ubiquitous three-dimensional (3D) communication coverage for the UAVs in the sky is a new…

信号处理 · 电气工程与系统科学 2020-03-18 Yong Zeng , Xiaoli Xu , Shi Jin , Rui Zhang

Millimeter-wave (mmwave) communication represents a potential solution to capacity shortage in vehicular networks. However, effective beam alignment between senders and receivers requires accurate knowledge of the vehicles' position for…

网络与互联网体系结构 · 计算机科学 2020-05-21 Zana Limani , Francesco Malandrino , Carla Fabiana Chiasserini , Alessandro Nordio

Highly directional millimeter wave (mmWave) radios need to perform beam management to establish and maintain reliable links. To do so, existing solutions mostly rely on explicit coordination between the transmitter (TX) and the receiver…

网络与互联网体系结构 · 计算机科学 2021-06-09 Michele Polese , Francesco Restuccia , Tommaso Melodia

Millimeter wave communication systems can leverage information from sensors to reduce the overhead associated with link configuration. LIDAR (light detection and ranging) is one sensor widely used in autonomous driving for high resolution…

信号处理 · 电气工程与系统科学 2020-01-14 Aldebaro Klautau , Nuria González-Prelcic , Robert W. Heath

In this paper, a novel communication framework that uses an unmanned aerial vehicle (UAV)-carried intelligent reflector (IR) is proposed to enhance multi-user downlink transmissions over millimeter wave (mmWave) frequencies. In order to…

信息论 · 计算机科学 2020-11-04 Qianqian Zhang , Walid Saad , Mehdi Bennis

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

Accurately aligning millimeter-wave (mmWave) and terahertz (THz) narrow beams is essential to satisfy reliability and high data rates of 5G and beyond wireless communication systems. However, achieving this objective is difficult,…

信息论 · 计算机科学 2023-08-22 Tawfik Osman , Gouranga Charan , Ahmed Alkhateeb