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The efficient construction of accurate channel knowledge maps (CKMs) is crucial for unleashing the full potential of environment-aware wireless networks, yet it remains a difficult ill-posed problem due to the sparsity of available…

Information Theory · Computer Science 2026-01-13 Ziyu Huang , Yong Zeng , Shen Fu , Xiaoli Xu , Hongyang Du

Introduced with the advent of statistical wireless channel models for high mobility communications and having a profound role in communication-centric (CC) integrated sensing and communications (ISAC), the doubly-dispersive (DD) channel…

Accurate channel state information (CSI) acquisition is essential for modern wireless systems, which becomes increasingly difficult under large antenna arrays, strict pilot overhead constraints, and diverse deployment environments. Existing…

Information Theory · Computer Science 2026-03-17 Xingyu Zhou , Le Liang , Hao Ye , Jing Zhang , Chao-Kai Wen , Shi Jin

Low-altitude communications can promote the integration of aerial and terrestrial wireless resources, expand network coverage, and enhance transmission quality, thereby empowering the development of sixth-generation (6G) mobile…

Information Theory · Computer Science 2026-05-26 Chenjie Xie , Li You , Ruirong Chen , Gaoning He , Xiqi Gao

\textit{Why does the literature consider the channel-state-information (CSI) as a 2/3-D image? What are the pros-and-cons of this consideration for accuracy-complexity trade-off?} Next generations of wireless communications require…

Information Theory · Computer Science 2020-01-22 Makan Zamanipour

The doubly-dispersive (DD) channel structure has played a pivotal role in wireless communications, particularly in high-mobility scenarios and integrated sensing and communications (ISAC), due to its ability to capture the key fading…

Human behaviors in the real world naturally encode rich, long-term contextual information that can be leveraged to train embodied agents for perception, understanding, and acting. However, existing capture systems typically rely on costly…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Wenjia Wang , Liang Pan , Huaijin Pi , Yuke Lou , Xuqian Ren , Yifan Wu , Zhouyingcheng Liao , Lei Yang , Rishabh Dabral , Christian Theobalt , Taku Komura

This paper investigates the construction of channel knowledge map (CKM) from sparse channel measurements. Dif ferent from conventional two-/three-dimensional (2D/3D) CKM approaches assuming fixed base station configurations, we present a…

Signal Processing · Electrical Eng. & Systems 2025-10-31 Juncong Zhou , Chao Hu , Guanlin Wu , Zixiang Ren , Han Hu , Juyong Zhang , Rui Zhang , Jie Xu

In time division duplexing (TDD) millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems, downlink channel state information (CSI) can be obtained from uplink channel estimation thanks to channel reciprocity. However,…

Signal Processing · Electrical Eng. & Systems 2025-01-13 Binggui Zhou , Xi Yang , Shaodan Ma , Feifei Gao , Guanghua Yang

In this paper, we incorporate physical knowledge into learning-based high-precision target sensing using the multi-view channel state information (CSI) between multiple base stations (BSs) and user equipment (UEs). Such kind of multi-view…

Signal Processing · Electrical Eng. & Systems 2026-02-27 Ziqing Xing , Zhaoyang Zhang , Zirui Chen , Hongning Ruan , Zhaohui Yang , Zhiyong Feng

Radio Environment Maps (REMs) have the potential to serve as an important enabler for intelligent modeling and control in emerging AI-native 6G networks. Despite significant progress, most REM construction methods remain passive, relying on…

Signal Processing · Electrical Eng. & Systems 2026-05-26 Jernej Hribar , Ljupcho Milosheski , Ryoichi Shinkuma

Large scale multiple-input multiple-output (MIMO) or Massive MIMO is one of the pivotal technologies for future wireless networks. However, the performance of massive MIMO systems heavily relies on accurate channel estimation. While the…

Signal Processing · Electrical Eng. & Systems 2020-02-25 Parna Sabeti , Arman Farhang , Irene Macaluso , Nicola Marchetti , Linda Doyle

Compressive sensing is a promising solution for the channel estimation in multiple-input multiple-output (MIMO) systems with large antenna arrays and constrained hardware. Utilizing site-specific channel data from real-world systems, deep…

Signal Processing · Electrical Eng. & Systems 2024-05-14 Hao Luo , Ahmed Alkhateeb

Cell-free Integrated Sensing and Communication (ISAC) aims to revolutionize 6th Generation (6G) networks. By combining distributed access points with ISAC capabilities, it boosts spectral efficiency, situational awareness, and communication…

Signal Processing · Electrical Eng. & Systems 2025-06-10 Mohammad Farzanullah , Han Zhang , Akram Bin Sediq , Ali Afana , Melike Erol-Kantarci

Segment anything model (SAM) has shown impressive general-purpose segmentation performance on natural images, but its performance on camouflaged object detection (COD) is unsatisfactory. In this paper, we propose SAM-COD that performs…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Jiaming Liu , Linghe Kong , Guihai Chen

Channel estimation is one of the key issues in practical massive multiple-input multiple-output (MIMO) systems. Compared with conventional estimation algorithms, deep learning (DL) based ones have exhibited great potential in terms of…

Information Theory · Computer Science 2021-08-24 Jiabao Gao , Mu Hu , Caijun Zhong , Geoffrey Ye Li , Zhaoyang Zhang

In this article, we develop an end-to-end wireless communication system using deep neural networks (DNNs), in which DNNs are employed to perform several key functions, including encoding, decoding, modulation, and demodulation. However, an…

Information Theory · Computer Science 2019-03-08 Hao Ye , Le Liang , Geoffrey Ye Li , Biing-Hwang Fred Juang

CNNs and computational models of biological vision share some fundamental principles, which opened new avenues of research. However, fruitful cross-field research is hampered by conventional CNN architectures being based on spatially and…

Computer Vision and Pattern Recognition · Computer Science 2024-02-05 Nergis Tomen , Silvia L. Pintea , Jan C. van Gemert

Recent studies have focused on utilizing multi-modal data to develop robust models for facial Action Unit (AU) detection. However, the heterogeneity of multi-modal data poses challenges in learning effective representations. One such…

Computer Vision and Pattern Recognition · Computer Science 2023-08-24 Xiang Zhang , Huiyuan Yang , Taoyue Wang , Xiaotian Li , Lijun Yin

Integrated Sensing and Communication (ISAC) is a promising technology in 6G systems. The existing 3D Geometry-Based Stochastic Model (GBSM), as standardized for 5G systems, addresses solely communication channels and lacks consideration of…

Signal Processing · Electrical Eng. & Systems 2023-10-26 Yameng Liu , Jianhua Zhang , Yuxiang Zhang , Huiwen Gong , Tao Jiang , Guangyi Liu