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Millimeter-wave (mmWave) MIMO systems rely on highly directional beamforming to overcome severe path loss and ensure robust communication links. However, selecting the optimal beam pair efficiently remains a challenge due to the large…

信号处理 · 电气工程与系统科学 2025-04-15 Joseph K. Chege , Arie Yeredor , Martin Haardt

Unmanned aerial vehicle (UAV) base stations (BSs) are reliable and efficient alternative to full fill the coverage and capacity requirements when the backbone network fails to provide such requirements due to disasters. In this paper, we…

信号处理 · 电气工程与系统科学 2023-03-01 Thushan Sivalingam , K. B. Shashika Manosha , Nandana Rajatheva , M. Latva-aho , Maheshi B. Dissanayake

In this paper, we propose a new wireless sensing system equipped with the movable-antenna (MA) array, which can flexibly adjust the positions of antenna elements for improving the sensing performance over conventional antenna arrays with…

信息论 · 计算机科学 2024-05-03 Wenyan Ma , Lipeng Zhu , Rui Zhang

Reconfigurable intelligent surfaces (RISs) are expected to be a main component of future 6G networks, due to their capability to create a controllable wireless environment, and achieve extended coverage and improved localization accuracy.…

信号处理 · 电气工程与系统科学 2025-02-27 Mustafa Ammous , Hui Chen , Henk Wymeersch , Shahrokh Valaee

Terahertz (THz) communications are celebrated as key enablers for converged localization and sensing in future sixth-generation (6G) wireless communication systems and beyond. Instead of being a byproduct of the communication system,…

信号处理 · 电气工程与系统科学 2022-11-16 Hui Chen , Hadi Sarieddeen , Tarig Ballal , Henk Wymeersch , Mohamed-Slim Alouini , Tareq Y. Al-Naffouri

Full 3D human pose reconstruction is a critical enabler for extended reality (XR) applications in future sixth generation (6G) networks, supporting immersive interactions in gaming, virtual meetings, and remote collaboration. However,…

计算机视觉与模式识别 · 计算机科学 2025-03-10 Nguyen Quang Hieu , Dinh Thai Hoang , Diep N. Nguyen , Mohammad Abu Alsheikh , Carlos C. N. Kuhn , Yibeltal F. Alem , Ibrahim Radwan

Incorporating integrated sensing and communication capabilities into forthcoming 6G wireless networks is crucial for achieving seamless synchronization between the digital and physical worlds. The following paper focuses on a scenario where…

信号处理 · 电气工程与系统科学 2025-02-27 Ahmad Bazzi , Marwa Chafii

We propose an occlusion-aware multimodal learning framework that is inspired by simultaneous localization and mapping (SLAM) concepts for trajectory interpretation and pose prediction. Targeting mmWave vehicle-to-infrastructure (V2I) beam…

信号处理 · 电气工程与系统科学 2026-03-30 Abidemi Orimogunje , Hyunwoo Park , Kyeong-Ju Cha , Igbafe Orikumhi , Sunwoo Kim , Dejan Vukobratovic

This paper considers the challenge of localizing ground users with the help of a radio-equipped unmanned aerial vehicle (UAV) that collects measurements from users. We utilize time-of-arrival (ToA) measurements estimated from the radio…

信息论 · 计算机科学 2025-03-26 Omid Esrafilian , Rakesh Mundlamuri , Florian Kaltenberger , Raymond Knopp , David Gesbert

The sixth generation (6G) targets ultra reliable, low latency (URLLC) gigabit connectivity in mmWave bands, where directional channels require precise beam alignment. Reconfigurable intelligent surfaces (RIS) reshape wave propagation and…

信号处理 · 电气工程与系统科学 2025-10-29 M. T. Hassan , D. Zelenchuk , M. A. B. Abbasi

The fact that the millimeter-wave (mmWave) multiple-input multiple-output (MIMO) channel has sparse support in the spatial domain has motivated recent compressed sensing (CS)-based mmWave channel estimation methods, where the angles of…

信息论 · 计算机科学 2022-04-19 Wei Zhang , Miaomiao Dong , Taejoon Kim

We propose a new method named LoD-Loc for visual localization in the air. Unlike existing localization algorithms, LoD-Loc does not rely on complex 3D representations and can estimate the pose of an Unmanned Aerial Vehicle (UAV) using a…

计算机视觉与模式识别 · 计算机科学 2024-10-17 Juelin Zhu , Shen Yan , Long Wang , Shengyue Zhang , Yu Liu , Maojun Zhang

In the past, NLOS propagation was shown to be a source of distortion for radio-based positioning systems. Every NLOS component was perceived as a perturbation which resulted from the lack of temporal and spatial resolution of previous…

信息论 · 计算机科学 2017-12-06 Rico Mendrzik , Henk Wymeersch , Gerhard Bauch , Zohair Abu-Shaban

6D Object pose estimation is a fundamental component in robotics enabling efficient interaction with the environment. It is particularly challenging in bin-picking applications, where many objects are low-feature and reflective, and…

计算机视觉与模式识别 · 计算机科学 2023-03-30 Alan Li , Angela P. Schoellig

This letter proposes an algebraic solution for the problem of 3-D source localization utilizing the minimum number of measurements, i.e., one Time Difference of Arrival (TDOA) and one Angle of Arrival (AOA) pair. The proposed method employs…

信号处理 · 电气工程与系统科学 2025-10-13 Mojtaba Amiri , Rouhollah Amiri

User location is a piece of critical information for network management and control. However, location uncertainty is unavoidable in certain settings leading to localization errors. In this paper, we consider the user location uncertainty…

系统与控制 · 电气工程与系统科学 2022-08-04 Yujie Yao , Hao Zhou , Melike Erol-Kantarci

Beamforming techniques are considered as essential parts to compensate the severe path loss in millimeter-wave (mmWave) communications by adopting large antenna arrays and formulating narrow beams to obtain satisfactory received powers.…

网络与互联网体系结构 · 计算机科学 2024-02-05 Muhammad Baqer Mollah , Honggang Wang , Hua Fang

Many emerging technologies for the next generation wireless network prefer line-of-sight (LOS) propagation conditions to fully release their performance advantages. This paper studies 3D unmanned aerial vehicle (UAV) placement to establish…

系统与控制 · 电气工程与系统科学 2024-08-27 Yuanshuai Zheng , Junting Chen

In this paper, we propose an efficient beam tracking method for mobility scenario in mmWave-band communications. When the position of the mobile changes in mobility scenario, the base-station needs to perform beam training frequently to…

信息论 · 计算机科学 2017-02-02 Jisu Bae , Sun Hong Lim , Jin Hyeok Yoo , Jun Won Choi

5G mmWave communication is useful for positioning due to the geometric connection between the propagation channel and the propagation environment. Channel estimation methods can exploit the resulting sparsity to estimate parameters(delay…

信息论 · 计算机科学 2020-05-25 Fuxi Wen , Josef Kulmer , Klaus Witrisal , Henk Wymeersch