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Near-space airship-borne communication network is recognized to be an indispensable component of the future integrated ground-air-space network thanks to airships' advantage of long-term residency at stratospheric altitudes, but it urgently…

Signal Processing · Electrical Eng. & Systems 2024-05-31 Minghui Wu , Zhen Gao , Zhaocheng Wang , Dusit Niyato , George K. Karagiannidis , Sheng Chen

Geological Carbon Sequestration (GCS) has emerged as a promising strategy for mitigating global warming, yet its effectiveness heavily depends on accurately characterizing subsurface flow dynamics. The inherent geological uncertainty,…

Geophysics · Physics 2025-08-26 Zhao Feng , Xin-Yang Liu , Meet Hemant Parikh , Junyi Guo , Pan Du , Bicheng Yan , Jian-Xun Wang

Sub-terahertz (sub-THz) multi-user multiple-input multiple-output (MU-MIMO) systems unlock immense bandwidth for 6G wireless communications. However, practical deployment of wireless systems in sub-THz bands faces critical challenges such…

In dynamic acoustic environments characterized by time-varying interferers and moving sources, effective beamforming requires accurately identifying stationary regions over time. Traditional Capon beamformers rely on the instantaneous…

Sound · Computer Science 2026-05-12 Manan Mittal , Ryan M. Corey , Diego Cuji , John R. Buck , Andrew C. Singer

Hybrid beamforming is widely recognized as an important technique for millimeter wave (mmWave) multiple input multiple output (MIMO) systems. Generalized spatial modulation (GSM) is further introduced to improve the spectrum efficiency.…

Information Theory · Computer Science 2023-02-16 Zhilin Lu , Xudong Zhang , Rui Zeng , Jintao Wang

Creating accurate and geologically realistic reservoir facies based on limited measurements is crucial for field development and reservoir management, especially in the oil and gas sector. Traditional two-point geostatistics, while…

Geophysics · Physics 2024-11-08 Daesoo Lee , Oscar Ovanger , Jo Eidsvik , Erlend Aune , Jacob Skauvold , Ragnar Hauge

Generative foundation AI models have recently shown great success in synthesizing natural signals with high perceptual quality using only textual prompts and conditioning signals to guide the generation process. This enables semantic…

Information Theory · Computer Science 2024-08-20 Li Qiao , Mahdi Boloursaz Mashhadi , Zhen Gao , Chuan Heng Foh , Pei Xiao , Mehdi Bennis

We derive a novel generative model from iterative Gaussian posterior inference. By treating the generated sample as an unknown variable, we can formulate the sampling process in the language of Bayesian probability. Our model uses a…

Machine Learning · Computer Science 2026-01-28 Marten Lienen , Marcel Kollovieh , Stephan Günnemann

Deep generative approaches have obtained great success in image inpainting recently. However, most generative inpainting networks suffer from either over-smooth results or aliasing artifacts. The former lacks high-frequency details, while…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Ze Lu , Yalei Lv , Wenqi Wang , Pengfei Xiong

Self-supervised representation learning has gained increasing attention for strong generalization ability without relying on paired datasets. However, it has not been explored sufficiently for facial representation. Self-supervised facial…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Ruian He , Zhen Xing , Weimin Tan , Bo Yan

Collaborative beamforming (CB) is a power efficient method for data communications in wireless sensor networks (WSNs) which aims at increasing the transmission range in the network by radiating the power from a cluster of sensor nodes in…

Information Theory · Computer Science 2015-05-18 Mohammed F. A. Ahmed , Sergiy A. Vorobyov

To facilitate the antenna design with the aid of computer, one of the practices in consumer electronic industry is to model and optimize antenna performances with a simplified antenna geometric scheme. Traditional antenna modeling requires…

Machine Learning · Computer Science 2022-03-23 Yang Zhong , Peter Renner , Weiping Dou , Geng Ye , Jiang Zhu , Qing Huo Liu

Fine-grained high-resolution remote sensing mapping typically relies on localized visual features, which restricts cross-domain generalizability and often leads to fragmented predictions of large-scale land covers. While global geospatial…

Computer Vision and Pattern Recognition · Computer Science 2026-04-23 Jienan Lyu , Miao Yang , Jinchen Cai , Yiwen Hu , Guanyi Lu , Junhao Qiu , Runmin Dong

Synthesizing radio-frequency (RF) data given the transmitter and receiver positions, e.g., received signal strength indicator (RSSI), is critical for wireless networking and sensing applications, such as indoor localization. However, it…

Networking and Internet Architecture · Computer Science 2025-11-10 Kang Yang , Gaofeng Dong , Sijie Ji , Wan Du , Mani Srivastava

Spatiotemporal datasets, which consist of spatially-referenced time series, are ubiquitous in diverse applications, such as air pollution monitoring, disease tracking, and cloud-demand forecasting. As the scale of modern datasets increases,…

Machine Learning · Computer Science 2024-11-28 Feras Saad , Jacob Burnim , Colin Carroll , Brian Patton , Urs Köster , Rif A. Saurous , Matthew Hoffman

Satellite communications can provide massive connections and seamless coverage, but they also face several challenges, such as rain attenuation, long propagation delays, and co-channel interference. To improve transmission efficiency and…

Signal Processing · Electrical Eng. & Systems 2024-10-27 Peiwen Jiang , Chao-Kai Wen , Xiao Li , Shi Jin , Geoffrey Ye Li

Joint Spatial Division and Multiplexing (JSDM) is a recently proposed scheme to enable massive MIMO like gains and simplified system operations for Frequency Division Duplexing (FDD) systems. The key idea lies in partitioning the users into…

Information Theory · Computer Science 2013-06-03 Ansuman Adhikary , Giuseppe Caire

Despite recent advances, the remaining bottlenecks in deep generative models are necessity of extensive training and difficulties with generalization from small number of training examples. We develop a new generative model called…

Machine Learning · Statistics 2017-09-06 Sergey Bartunov , Dmitry P. Vetrov

This paper deals with joint source-relay-destination beamforming (BF) design for an amplify-and-forward (AF) relay network. Considering the channel state information (CSI) from the relay to the destination is imperfect, we first aim to…

Signal Processing · Electrical Eng. & Systems 2020-03-04 Hongying Tang , Wen Chen , Jun Li

Sensing and communication are fundamental enablers of next-generation networks. While communication technologies have advanced significantly, sensing remains limited to conventional parameter estimation and is far from fully explored.…

Signal Processing · Electrical Eng. & Systems 2026-04-01 Xiaoqi Zhang , J. Andrew Zhang , Chang Liu , Weijie Yuan , Geoffrey Ye Li , Moeness G. Amin