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In Wi-Fi systems, channel state information (CSI) plays a crucial role in enabling access points to execute beamforming operations. However, the feedback overhead associated with CSI significantly hampers the throughput improvements. Recent…

Signal Processing · Electrical Eng. & Systems 2024-07-09 Fan Qi , Jiajia Guo , Yiming Cui , Xiangyi Li , Chao-Kai Wen , Shi Jin

Geospatial Foundation Models (GFMs) typically lack native support for Hyperspectral Imaging (HSI) due to the complexity and sheer size of high-dimensional spectral data. This study investigates the adaptability of TerraMind, a multimodal…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Julia Anna Leonardi , Johannes Jakubik , Paolo Fraccaro , Maria Antonia Brovelli

We investigate a general channel estimation problem in the massive multiple-input multiple-output (MIMO) system which employs the hybrid analog/digital precoding structure with limited radio-frequency (RF) chains. By properly designing RF…

Information Theory · Computer Science 2017-12-27 Leyuan Pan , Le Liang , Wei Xu , Xiaodai Dong

Multimodal foundation models can process several modalities. However, since the space of possible modalities is large and evolving over time, training a model from scratch to encompass all modalities is unfeasible. Moreover, integrating a…

Computation and Language · Computer Science 2025-09-08 Osman Batur İnce , André F. T. Martins , Oisin Mac Aodha , Edoardo M. Ponti

With the rise of critical machine-to-machine applications, next generation wireless communication systems must be designed with strict constraints on the latency and reliability. A key question in this context relates to channel state…

Information Theory · Computer Science 2017-06-06 Sebastian Schiessl , Hussein Al-Zubaidy , Mikael Skoglund , James Gross

Accurate Channel State Information (CSI) is critical for Hybrid Beamforming (HBF) tasks. However, obtaining high-resolution CSI remains challenging in practical wireless communication systems. To address this issue, we propose to utilize…

Systems and Control · Electrical Eng. & Systems 2025-11-11 Yuhang Li , Yang Lu , Bo Ai , Zhiguo Ding , Dusit Niyato , Arumugam Nallanathan

We propose a hierarchical interference mitigation scheme for massive MIMO cellular networks. The MIMO precoder at each base station (BS) is partitioned into an inner precoder and an outer precoder. The inner precoder controls the intra-cell…

Information Theory · Computer Science 2015-06-16 An Liu , Vincent Lau

As the number of multiple-input multiple-output (MIMO) antennas increases drastically with the development towards 6G systems, channel state information (CSI) compression becomes crucial for mitigating feedback overhead. In recent years,…

Signal Processing · Electrical Eng. & Systems 2025-04-18 Kangzhi Lou , Xiping Wu

Existing deep learning methods for remote sensing image fusion often suffer from poor generalization when applied to unseen datasets due to the limited availability of real training data and the domain gap between different satellite…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Yongchuan Cui , Peng Liu , Yi Zeng

For frequency division duplex systems, the essential downlink channel state information (CSI) feedback includes the links of compression, feedback, decompression and reconstruction to reduce the feedback overhead. One efficient CSI feedback…

Signal Processing · Electrical Eng. & Systems 2023-06-06 Xiangyi Li , Jiajia Guo , Chao-Kai Wen , Shi Jin , Shuangfeng Han , Xiaoyun Wang

Compressive sensing (CS) has been studied and applied in structural health monitoring for wireless data acquisition and transmission, structural modal identification, and spare damage identification. The key issue in CS is finding the…

Signal Processing · Electrical Eng. & Systems 2019-03-25 Yuequan Bao , Zhiyi Tang , Hui Li

Massive multiple-input multiple-output (MIMO) system is promising in providing unprecedentedly high data rate. To achieve its full potential, the transceiver needs complete channel state information (CSI) to perform transmit/receive…

Information Theory · Computer Science 2022-02-08 Yu Zhang , Ahmed Alkhateeb , Pranav Madadi , Jeongho Jeon , Joonyoung Cho , Charlie Zhang

Channel estimation is crucial in wireless communications. However, in many papers neural networks are frequently tested by training and testing on one example channel or similar channels. This is because data-driven methods often degrade on…

Signal Processing · Electrical Eng. & Systems 2025-07-22 Dianxin Luan , John Thompson

Wi-Fi sensing has emerged as a versatile tool for tasks such as localization, gesture recognition, and vital-sign monitoring, enabling applications from smart environments to personalized healthcare. However, sensing accuracy often…

Signal Processing · Electrical Eng. & Systems 2026-05-27 Fabian Portner , Francesco Gringoli , Matthias Hollick , Arash Asadi

Developing channel-adaptive deep joint source-channel coding (JSCC) systems is a critical challenge in wireless image transmission. While recent advancements have been made, most existing approaches are designed for static channel…

Image and Video Processing · Electrical Eng. & Systems 2024-12-12 Hanlei Li , Guangyi Zhang , Kequan Zhou , Yunlong Cai , Guanding Yu

In this paper, we propose a novel complex convolutional neural network (CNN) CSI enhancer for integrated sensing and communications (ISAC), which exploits the correlation between the sensing parameters (such as angle-of-arrival and range)…

Information Theory · Computer Science 2023-06-21 Xu Chen , Zhiyong Feng , J. Andrew Zhang , Feifei Gao , Xin Yuan , Zhaohui Yang , Ping Zhang

This paper introduces WavesFM, a novel Wireless Foundation Model (WFM) framework, capable of supporting a wide array of communication, sensing, and localization tasks. Our proposed architecture combines a shared Vision Transformer (ViT)…

Signal Processing · Electrical Eng. & Systems 2025-04-22 Ahmed Aboulfotouh , Elsayed Mohammed , Hatem Abou-Zeid

Accurate hyperspectral image (HSI) interpretation is critical for providing valuable insights into various earth observation-related applications such as urban planning, precision agriculture, and environmental monitoring. However, existing…

Knowledge of information about the propagation channel in which a wireless system operates enables better, more efficient approaches for signal transmissions. Therefore, channel state information (CSI) plays a pivotal role in the system…

Information Theory · Computer Science 2018-12-04 Zhiyuan Jiang , Sheng Chen , Andreas F. Molisch , Rath Vannithamby , Sheng Zhou , Zhisheng Niu

Electroencephalography (EEG) foundation models hold significant promise for universal Brain-Computer Interfaces (BCIs). However, existing approaches often rely on end-to-end fine-tuning and exhibit limited efficacy under frozen-probing…

Machine Learning · Computer Science 2026-03-20 Jiquan Wang , Sha Zhao , Yangxuan Zhou , Yiming Kang , Shijian Li , Gang Pan
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