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Accurate and efficient acquisition of wireless channel state information (CSI) is crucial to enhance the communication performance of wireless systems. However, with the continuous densification of wireless links, increased channel…

Signal Processing · Electrical Eng. & Systems 2025-07-09 Yuelong Qiu , Di Wu , Yong Zeng , Yanqun Tang , Nan Cheng , Chenhao Qi

Radio maps are essential for enhancing wireless communications and localization. However, existing methods for constructing radio maps typically require costly calibration processes to collect location-labeled channel state information…

Machine Learning · Computer Science 2025-10-10 Zheng Xing , Junting Chen

In colocated multiple-input multiple-output (MIMO) radar using compressive sensing (CS), a receive node compresses its received signal via a linear transformation, referred to as measurement matrix. The samples are subsequently forwarded to…

Information Theory · Computer Science 2015-05-27 Y. Yu , A. P. Petropulu , H. V. Poor

Massive MIMO is a variant of multiuser MIMO, where the number of antennas $M$ at the base-station is large, and generally much larger than the number of spatially multiplexed data streams to/from the users. It has been observed that in many…

Information Theory · Computer Science 2017-07-25 Saeid Haghighatshoar , Giuseppe Caire

The Reference Signal Received Power (RSRP) is a crucial factor that determines communication performance in mobile networks. Accurately predicting the RSRP can help network operators perceive user experiences and maximize throughput by…

Networking and Internet Architecture · Computer Science 2025-12-29 Xiaoqian Qi , Haoye Chai , Yue Wang , Zhaocheng Wang , Yong Li

Clinical investigations of anatomy's structural changes over time could greatly benefit from population-level quantification of shape, or spatiotemporal statistic shape modeling (SSM). Such a tool enables characterizing patient organ cycles…

Machine Learning · Computer Science 2022-09-08 Jadie Adams , Nawazish Khan , Alan Morris , Shireen Elhabian

The electric grid is a key enabling infrastructure for the ambitious transition towards carbon neutrality as we grapple with climate change. With deepening penetration of renewable energy resources and electrified transportation, the…

Machine Learning · Computer Science 2022-05-24 Xiangtian Zheng , Nan Xu , Loc Trinh , Dongqi Wu , Tong Huang , S. Sivaranjani , Yan Liu , Le Xie

As the demand of wireless communication continues to rise, the radio spectrum (a finite resource) requires increasingly efficient utilization. This trend is driving the evolution from static, stand-alone spectrum allocation toward spectrum…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Hao Guo , Ruoyu Sun , Amir Hossein Fahim Raouf , Rahil Gandotra , Jiayu Mao , Mark Poletti

This paper introduces a novel channel knowledge map (CKM)-assisted dual-domain tracking and predictive beamforming scheme for high-mobility wireless networks. The central premise is that the CKM integrates both the coordinate and beam…

Signal Processing · Electrical Eng. & Systems 2026-01-22 Ruolin Du , Zhiqiang Wei , Zai Yang , Lei Yang , Yong Zeng , Derrick Wing Kwan Ng , Jinhong Yuan

The problem of super-resolution compressive sensing (SR-CS) is crucial for various wireless sensing and communication applications. Existing methods often suffer from limited resolution capabilities and sensitivity to hyper-parameters,…

Signal Processing · Electrical Eng. & Systems 2025-08-12 Yufan Zhou , Jingyi Li , Wenkang Xu , An Liu

Accurately and efficiently addressing the multiple source localization (MSL) problem in urban environments, particularly designing a general method adaptable to an arbitrary number of sources, plays a crucial role in various fields such as…

Signal Processing · Electrical Eng. & Systems 2025-12-19 Qilu Zhang , Hongying Tang , Wen Chen , Ziyi Song , Jiang Wang

This work considers a spatial non-stationary channel tracking problem in broadband extremely large-scale multiple-input-multiple-output (XL-MIMO) systems. In the case of spatial non-stationary, each scatterer has a certain visibility region…

Signal Processing · Electrical Eng. & Systems 2025-04-01 Wenkang Xu , An Liu , Min-jian Zhao , Giuseppe Caire , Yik-Chung Wu

This work focuses on channel estimation in extremely large aperture array (ELAA) systems, where near-field propagation and spatial non-stationarity introduce complexities that hinder the effectiveness of traditional estimation techniques. A…

Signal Processing · Electrical Eng. & Systems 2025-08-07 Thibaut Ceulemans , Cel Thys , Robbert Beerten , Zhuangzhuang Cui , Sofie Pollin

Reliable displacement measurement is fundamental for structural health monitoring and digital engineering workflows, as it provides direct structural response information. Vision-based measurement has emerged as a promising approach for…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Qingyu Xian , Hao Cheng , Berend Jan van der Zwaag , Rolands Kromanis , Ozlem Durmaz Incel

In this paper, spatial modulation (SM) is introduced to layered division multiplexing (LDM) systems for enlarging the spectral efficiency over broadcasting transmission. Firstly, the SM aided LDM (SM-LDM) system is proposed, in which…

Information Theory · Computer Science 2018-01-16 Yue Sun , Jintao Wang , Changyong Pan , Longzhuang He , Bo Ai

Accurate imputation is essential for the reliability and success of downstream tasks. Recently, diffusion models have attracted great attention in this field. However, these models neglect the latent distribution in a lower-dimensional…

Machine Learning · Computer Science 2024-09-16 Guojun Liang , Najmeh Abiri , Atiye Sadat Hashemi , Jens Lundström , Stefan Byttner , Prayag Tiwari

Multipath-based simultaneous localization and mapping (MP-SLAM) is a promising approach for future 6G networks to jointly estimate the positions of transmitters and receivers together with the propagation environment. In cooperative…

Signal Processing · Electrical Eng. & Systems 2026-01-28 Alexander Venus , Erik Leitinger , Klaus Witrisal

This paper presents a neural-enhanced probabilistic model and corresponding factor graph-based sum-product algorithm for robust localization and tracking in multipath-prone environments. The introduced hybrid probabilistic model consists of…

Signal Processing · Electrical Eng. & Systems 2023-11-30 Alexander Venus , Erik Leitinger , Stefan Tertinek , Klaus Witrisal

With the development of the sixth-generation (6G) communication system, Channel State Information (CSI) plays a crucial role in improving network performance. Traditional Channel Charting (CC) methods map high-dimensional CSI data to…

Signal Processing · Electrical Eng. & Systems 2026-02-03 Yuan Gao , Wenjing Xie , Yiming Liu , Bintao Hu , Jianbo Du , Shugong Xu

Radio localization is applied in high-frequency (e.g., mmWave and THz) systems to support communication and to provide location-based services without extra infrastructure. {For solving localization problems, a simplified, stationary,…

Signal Processing · Electrical Eng. & Systems 2022-06-01 Hui Chen , Ahmed Elzanaty , Reza Ghazalian , Musa Furkan Keskin , Riku Jäntti , Henk Wymeersch