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The problem of beam alignment and tracking in high mobility scenarios such as high-speed railway (HSR) becomes extremely challenging, since large overhead cost and significant time delay are introduced for fast time-varying channel…

Information Theory · Computer Science 2022-07-01 Fan Meng , Shengheng Liu , Yongming Huang , Zhaohua Lu

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…

Signal Processing · Electrical Eng. & Systems 2021-11-16 Gouranga Charan , Tawfik Osman , Andrew Hredzak , Ngwe Thawdar , Ahmed Alkhateeb

Highly directional mmWave/THz links require rapid beam alignment, yet exhaustive codebook sweeps incur prohibitive training overhead. This letter proposes a sensing-assisted adaptive probing policy that maps multimodal sensing…

Signal Processing · Electrical Eng. & Systems 2026-03-26 Abidemi Orimogunje , Vukan Ninkovic , Ognjen Kundacina , Hyunwoo Park , Sunwoo Kim , Dejan Vukobratovic , Evariste Twahirwa , Gaspard Gashema

Integrated sensing and communication (ISAC) systems operating at terahertz (THz) bands are envisioned to enable both ultra-high data-rate communication and precise environmental awareness for next-generation wireless networks. However, the…

Signal Processing · Electrical Eng. & Systems 2025-05-06 Kai Zhang , Wentao Yu , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

Existing work in intelligent communications has recently made preliminary attempts to utilize multi-source sensing information (MSI) to improve the system performance. However, the research on MSI aided intelligent communications has not…

Signal Processing · Electrical Eng. & Systems 2020-12-01 Yuwen Yang , Feifei Gao , Chengwen Xing , Jianping An , Ahmed Alkhateeb

Multimodal representation learning has shown promising improvements on various vision-language tasks. Most existing methods excel at building global-level alignment between vision and language while lacking effective fine-grained image-text…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Zijia Zhao , Longteng Guo , Xingjian He , Shuai Shao , Zehuan Yuan , Jing Liu

Multi-modal learning, which focuses on utilizing various modalities to improve the performance of a model, is widely used in video recognition. While traditional multi-modal learning offers excellent recognition results, its computational…

Computer Vision and Pattern Recognition · Computer Science 2021-05-13 Rameswar Panda , Chun-Fu Chen , Quanfu Fan , Ximeng Sun , Kate Saenko , Aude Oliva , Rogerio Feris

This paper studies the fast adaptive beamforming for the multiuser multiple-input single-output downlink. Existing deep learning-based approaches assume that training and testing channels follow the same distribution which causes task…

Information Theory · Computer Science 2021-09-21 Juping Zhang , Yi Yuan , Gan Zheng , Ioannis Krikidis , Kai-Kit Wong

Using environmental sensory data can enhance communications beam training and reduce its overhead compared to conventional methods. However, the availability of fresh sensory data during inference may be limited due to sensing constraints…

Signal Processing · Electrical Eng. & Systems 2025-11-04 Abolfazl Zakeri , Nhan Thanh Nguyen , Ahmed Alkhateeb , Markku Juntti

Learning-enabled control systems increasingly rely on multiple sensing modalities (e.g., vision, audio, language, etc.) for perception and decision support. A key challenge is that multi-modal sensor training dynamics are often imbalanced:…

Machine Learning · Computer Science 2026-04-01 Heshan Fernando , Quan Xiao , Parikshit Ram , Yi Zhou , Horst Samulowitz , Nathalie Baracaldo , Tianyi Chen

The mechanism of connecting multimodal signals through self-attention operation is a key factor in the success of multimodal Transformer networks in remote sensing data fusion tasks. However, traditional approaches assume access to all…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Yuxing Chen , Maofan Zhao , Lorenzo Bruzzone

Multimodal semantic segmentation is a pivotal component of computer vision and typically surpasses unimodal methods by utilizing rich information set from various sources.Current models frequently adopt modality-specific frameworks that…

Computer Vision and Pattern Recognition · Computer Science 2024-05-27 Bingyu Li , Da Zhang , Zhiyuan Zhao , Junyu Gao , Xuelong Li

In this paper, we propose BeamLLM, a vision-aided millimeter-wave (mmWave) beam prediction framework leveraging large language models (LLMs) to address the challenges of high training overhead and latency in mmWave communication systems. By…

Machine Learning · Computer Science 2025-06-30 Can Zheng , Jiguang He , Guofa Cai , Zitong Yu , Chung G. Kang

Multiple-input multiple-output (MIMO) systems play a key role in wireless communication technologies. A widely considered approach to realize scalable MIMO systems involves architectures comprised of multiple separate modules, each with its…

Signal Processing · Electrical Eng. & Systems 2024-12-30 Ohad Levy , Nir Shlezinger

In the field of autonomous Unmanned Aerial Vehicles (UAVs) landing, conventional approaches fall short in delivering not only the required precision but also the resilience against environmental disturbances. Yet, learning-based algorithms…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Francisco Neves , Luís Branco , Maria Pereira , Rafael Claro , Andry Pinto

Massive multiple-input multiple-output (MIMO) stands as a key technology for advancing performance metrics such as data rate, reliability, and spectrum efficiency in the fifth generation (5G) and beyond of wireless networks. However, its…

Signal Processing · Electrical Eng. & Systems 2025-05-19 Sajjad Nassirpour , Toan-Van Nguyen , Duy H. N. Nguyen

Accurate beam prediction is essential for maintaining reliable links and high spectral efficiency in dynamic low-altitude wireless networks. However, existing approaches often fail to capture the deep correlations across heterogeneous…

Signal Processing · Electrical Eng. & Systems 2025-12-03 Xiaotong Zhao , Yuanhao Cui , Weijie Yuan , Ziye Jia , Heng Liu , Chengwen Xing

Multimodal recommendation aims to enhance user preference modeling by leveraging rich item content such as images and text. Yet dominant systems fuse modalities in the spatial domain, obscuring the frequency structure of signals and…

Information Retrieval · Computer Science 2026-02-02 Wei Yang , Rui Zhong , Yiqun Chen , Shixuan Li , Heng Ping , Chi Lu , Peng Jiang

This paper presents the first machine learning based real-world demonstration for radar-aided beam prediction in a practical vehicular communication scenario. Leveraging radar sensory data at the communication terminals provides important…

Signal Processing · Electrical Eng. & Systems 2021-11-19 Umut Demirhan , Ahmed Alkhateeb

This paper presents a novel deep learning framework for robotic arm manipulation that integrates multimodal inputs using a late-fusion strategy. Unlike traditional end-to-end or reinforcement learning approaches, our method processes image…

Machine Learning · Computer Science 2025-04-07 Sathish Kumar , Swaroop Damodaran , Naveen Kumar Kuruba , Sumit Jha , Arvind Ramanathan