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Radio maps (RMs) serve as environment-aware electromagnetic (EM) representations that connect scenario geometry and material properties to the spatial distribution of signal strength, enabling localization without costly in-situ…

机器学习 · 计算机科学 2025-11-26 Xiucheng Wang , Tingwei Yuan , Yang Cao , Nan Cheng , Ruijin Sun , Weihua Zhuang

Radio map (RM) is a promising technology that can obtain pathloss based on only location, which is significant for 6G network applications to reduce the communication costs for pathloss estimation. However, the construction of RM in…

机器学习 · 计算机科学 2024-11-12 Xiucheng Wang , Keda Tao , Nan Cheng , Zhisheng Yin , Zan Li , Yuan Zhang , Xuemin Shen

Accurate radio map (RM) construction is essential to enabling environment-aware and adaptive wireless communication. However, in future 6G scenarios characterized by high-speed network entities and fast-changing environments, it is very…

机器学习 · 计算机科学 2026-01-07 Xiucheng Wang , Peilin Zheng , Honggang Jia , Nan Cheng , Ruijin Sun , Conghao Zhou , Xuemin Shen

Accurate and real-time radio map (RM) generation is crucial for next-generation wireless systems, yet diffusion-based approaches often suffer from large model sizes, slow iterative denoising, and high inference latency, which hinder…

计算机视觉与模式识别 · 计算机科学 2025-10-13 Haozhe Jia , Wenshuo Chen , Xiucheng Wang , Nan Cheng , Hongbo Zhang , Kuimou Yu , Songning Lai , Nanjian Jia , Bowen Tian , Hongru Xiao , Yutao Yue

Sparse annotations fundamentally constrain multimodal remote sensing: even recent state-of-the-art supervised methods such as MSFMamba are limited by the availability of labeled data, restricting their practical deployment despite…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Yuzhen Hu , Saurabh Prasad

In this paper, we propose a novel physics-informed generative learning approach, named RadioDiff-$k^2$, for accurate and efficient multipath-aware radio map (RM) construction. As future wireless communication evolves towards…

机器学习 · 计算机科学 2025-10-20 Xiucheng Wang , Qiming Zhang , Nan Cheng , Ruijin Sun , Zan Li , Shuguang Cui , Xuemin Shen

Radio maps (RMs) are essential for environment-aware communication and sensing, providing location-specific wireless channel information. Existing RM construction methods often rely on precise environmental data and base station (BS)…

人工智能 · 计算机科学 2025-05-22 Xiucheng Wang , Zhongsheng Fang , Nan Cheng , Ruijin Sun , Zan Li , Xuemin , Shen

Accurate localization of non-cooperative signal sources in non-line-of-sight (NLoS) environments remains a critical challenge with a wide range of applications, including autonomous navigation, industrial automation, and emergency response.…

系统与控制 · 电气工程与系统科学 2025-09-05 Xiucheng Wang , Qiming Zhang , Nan Cheng

Radio maps (RMs) serve as a critical foundation for enabling environment-aware wireless communication, as they provide the spatial distribution of wireless channel characteristics. Despite recent progress in RM construction using…

机器学习 · 计算机科学 2025-07-17 Xiucheng Wang , Qiming Zhang , Nan Cheng , Junting Chen , Zezhong Zhang , Zan Li , Shuguang Cui , Xuemin Shen

Recent advancements in deep learning for medical image segmentation are often limited by the scarcity of high-quality training data.While diffusion models provide a potential solution by generating synthetic images, their effectiveness in…

计算机视觉与模式识别 · 计算机科学 2025-07-02 Jianhao Xie , Ziang Zhang , Zhenyu Weng , Yuesheng Zhu , Guibo Luo

Recently, Hyperspectral Image (HSI) classification has attracted increasing attention in remote sensing. However, HSI data are inherently high-dimensional but low-rank, with discriminative information concentrated on a low-dimensional…

计算机视觉与模式识别 · 计算机科学 2026-04-30 Boxiang Yang , Ning Chen , Xia Yue , Yichang Luo , Yingbo Fan , Haoyuan Zhang , Haoyu Ma , Jun Yue , Shanjun Mao

This paper presents DFR (Decompose, Fuse and Reconstruct), a novel framework that addresses the fundamental challenge of effectively utilizing multi-modal guidance in few-shot segmentation (FSS). While existing approaches primarily rely on…

计算机视觉与模式识别 · 计算机科学 2025-07-23 Shuai Chen , Fanman Meng , Xiwei Zhang , Haoran Wei , Chenhao Wu , Qingbo Wu , Hongliang Li

Ultra-massive multiple-input multiple-output (UM-MIMO) technology is a key enabler for 6G networks, offering exceptional high data rates in millimeter-wave (mmWave) and Terahertz (THz) frequency bands. The deployment of large antenna arrays…

信号处理 · 电气工程与系统科学 2025-03-19 Ahmed Hussain , Asmaa Abdallah , Abdulkadir Celik , Ahmed M. Eltawil

Accurate dose distribution prediction is crucial in the radiotherapy planning. Although previous methods based on convolutional neural network have shown promising performance, they have the problem of over-smoothing, leading to prediction…

图像与视频处理 · 电气工程与系统科学 2024-10-31 Xin Liao , Zhenghao Feng , Jianghong Xiao , Xingchen Peng , Yan Wang

Diffusion models have recently achieved remarkable performance in image super-resolution (SR), but their high computational cost limits practical deployment in remote sensing applications. To address this issue, we propose SlimDiffSR, a…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Ce Wang , Zhenyu Hu , Wanjie Sun

Active intelligent reflecting surface (IRS) is a revolutionary technique for the future 6G networks. The conventional far-field single-IRS-aided directional modulation(DM) networks have only one (no direct path) or two (existing direct…

信号处理 · 电气工程与系统科学 2024-04-30 Ke Yang , Rongen Dong , Wei Gao , Feng Shu , Weiping Shi , Yan Wang , Xuehui Wang , Jiangzhou Wang

Two critical approaches have emerged in the literature for the successful realization of 6G wireless networks: the coexistence of multiple waveforms and the adoption of non-orthogonal multiple access. These strategies hold transformative…

信号处理 · 电气工程与系统科学 2025-05-27 Kenza Abela , Shaima Abidrabbu , Ayoub Ammar Boudjelal , Huseyin Arslan

Treatment planning, which is a critical component of the radiotherapy workflow, is typically carried out by a medical physicist in a time-consuming trial-and-error manner. Previous studies have proposed knowledge-based or…

图像与视频处理 · 电气工程与系统科学 2024-03-29 Yiwen Zhang , Chuanpu Li , Liming Zhong , Zeli Chen , Wei Yang , Xuetao Wang

Diffusion models have achieved impressive performance on multi-focus image fusion (MFIF). However, a key challenge in applying diffusion models to the ill-posed MFIF problem is that defocus blur can make common symmetric geometric…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Bo Li , Tingting Bao , Lingling Zhang , Weiping Fu , Yaxian Wang , Jun Liu

We propose GRAM-DIFF, a Gram-matrix-guided diffusion framework for semi-blind multiple input multiple output (MIMO) channel estimation. Recent diffusion-based estimators leverage learned generative priors to improve pilot-based channel…

信息论 · 计算机科学 2026-02-18 Xinyuan Wang , Krishna Narayanan
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