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Channel knowledge map (CKM) provides certain levels of channel state information (CSI) for an area of interest, serving as a critical enabler for environment-aware communications by reducing the overhead of frequent CSI acquisition.…

Signal Processing · Electrical Eng. & Systems 2025-06-30 Yancheng Wang , Wei Guo , Chuan Huang , Guanying Chen , Ye Zhang , Shuguang Cui

Site-specific radio frequency (RF) propagation prediction increasingly relies on models built from visual data such as cameras and LIDAR sensors. When operating in dynamic settings, the environment may only be partially observed. This paper…

Robotics · Computer Science 2022-07-05 Mingsheng Yin , Yaqi Hu , Tommy Azzino , Seongjoon Kang , Marco Mezzavilla , Sundeep Rangan

Movable antenna (MA) introduces a new degree of freedom for future wireless communication systems by enabling the adaptive adjustment of antenna positions. Its large-range movement renders wireless channels transmission into the near-field…

Information Theory · Computer Science 2026-01-14 Chongjia Sun , Ziwei Wan , Lipeng Zhu , Zhenyu Xiao , Zhen Gao , Rui Zhang

Channel state information (CSI) is critical for multi-input multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) system. Pilot-based channel estimation methods suffer from high pilot overhead and low channel acquisition…

Signal Processing · Electrical Eng. & Systems 2026-05-11 Hongning Ruan , Zhaoyang Zhang , Zirui Chen , Ziqing Xing , Zhaohui Yang

Gaze estimation methods commonly use facial appearances to predict the direction of a person gaze. However, previous studies show three major challenges with convolutional neural network (CNN)-based, transformer-based, and contrastive…

Computer Vision and Pattern Recognition · Computer Science 2026-05-04 Xinyuan Zhao , Yihang Wu , Ahmad Chaddad , Sarah A. Alkhodair , Reem Kateb

Radio propagation modeling is essential in telecommunication research, as radio channels result from complex interactions with environmental objects. Recently, Machine Learning has been attracting attention as a potential alternative to…

Classical linear statistical models, like the first-order auto-regressive (AR) model, are commonly used as channel model in high-mobility scenarios. However, compared to sub-6G, the effect of Doppler frequency shifts is more significant at…

Information Theory · Computer Science 2024-08-28 Ruizhe Wang , Hong Ren , Cunhua Pan , Gui Zhou , Ruisong Weng , Jiangzhou Wang

Radio frequency (RF) map is a promising technique for capturing the characteristics of multipath signal propagation, offering critical support for channel modeling, coverage analysis, and beamforming in wireless communication networks. This…

Signal Processing · Electrical Eng. & Systems 2026-03-31 Lizhou Liu , Xiaohui Chen , Zihan Tang , Mengyao Ma , Wenyi Zhang

End-to-end image transmission has recently become a crucial trend in intelligent wireless communications, driven by the increasing demand for high bandwidth efficiency. However, existing methods primarily optimize the trade-off between…

Image and Video Processing · Electrical Eng. & Systems 2024-08-27 Kailin Tan , Jincheng Dai , Zhenyu Liu , Sixian Wang , Xiaoqi Qin , Wenjun Xu , Kai Niu , Ping Zhang

Time series forecasting has attracted significant attention in the field of AI. Previous works have revealed that the Channel-Independent (CI) strategy improves forecasting performance by modeling each channel individually, but it often…

Machine Learning · Computer Science 2026-03-17 Dongyuan Li , Shun Zheng , Chang Xu , Jiang Bian , Renhe Jiang

Although the performance of the medium access control (MAC) of the IEEE 802.15.4 has been investigated under the assumption of ideal wireless channel, the understanding of the cross-layer dynamics between MAC and physical layer is an open…

Networking and Internet Architecture · Computer Science 2013-07-25 Piergiuseppe Di Marco , Carlo Fischione , Fortunato Santucci , Karl Henrik Johansson

This paper presents a 3-D statistical channel model of the impulse response with small-scale spatially correlated random coefficients for multi-element transmitter and receiver antenna arrays, derived using the physically-based time cluster…

Information Theory · Computer Science 2016-01-29 Mathew K. Samimi , Shu Sun , Theodore S. Rappaport

Channel knowledge maps (CKMs) learn the relation between transmitter (Tx) and receiver (Rx) positions and channel knowledge to support environment-aware wireless communications. Implicit neural methods can model continuous channel variation…

Signal Processing · Electrical Eng. & Systems 2026-05-25 Jinghan Zhang , Xitao Gong , Qi Wang , Richard A. Stirling-Gallacher , Giuseppe Caire

We propose a novel multipath multi-hop adaptive and causal random linear network coding (AC-RLNC) algorithm with forward error correction. This algorithm generalizes our joint optimization coding solution for point-to-point communication…

Information Theory · Computer Science 2020-10-27 Alejandro Cohen , Guillaume Thiran , Vered Bar Bracha , Muriel Médard

The paradigm shift from environment-unaware communication to intelligent environment-aware communication is expected to facilitate the acquisition of channel state information for future wireless communications. Channel Fingerprint (CF), as…

Networking and Internet Architecture · Computer Science 2026-05-27 Zhenzhou Jin , Li You , Xiang-Gen Xia , Xiqi Gao

This paper presents a Multimodal Ambient Context-enriched Intelligence Platform (MACeIP) for Smart Cities, a comprehensive system designed to enhance urban management and citizen engagement. Our platform integrates advanced technologies,…

Artificial Intelligence · Computer Science 2024-09-24 Truong Thanh Hung Nguyen , Phuc Truong Loc Nguyen , Monica Wachowicz , Hung Cao

Context-based detection methods such as DetectGPT achieve strong generalization in identifying AI-generated text by evaluating content compatibility with a model's learned distribution. In contrast, existing image detectors rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Minsuk Jang , Hyunseo Jeong , Minseok Son , Changick Kim

Recently, generative adversarial networks (GANs) have shown great advantages in synthesizing images, leading to a boost of explorations of using faked images to augment data. This paper proposes a multimodal cascaded generative adversarial…

Computer Vision and Pattern Recognition · Computer Science 2020-01-01 Jie Wu , Ying Peng , Chenghao Zheng , Zongbo Hao , Jian Zhang

Urban walkability is a cornerstone of public health, sustainability, and quality of life. Traditional walkability assessments rely on surveys and field audits, which are costly and difficult to scale. Recent studies have used satellite…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Shilong Xiang , JangHyeon Lee , Min Namgung , Yao-Yi Chiang

Automatic modulation classification (AMC) is an essential technique for noncooperative spectrum monitoring and intelligent wireless receivers. However, practical AMC models must identify modulation formats from short and noisy I/Q…

Signal Processing · Electrical Eng. & Systems 2026-05-26 Ruixiang Zhang , Zinan Zhou , Yezhuo Zhang , Guangyu Li , Xuanpeng Li
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