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We introduce a comprehensive statistical characterization of the multipath wireless channel built as a superposition of a number of scattered waves with random phases. We consider an arbitrary number $N$ of specular (dominant) components…

Information Theory · Computer Science 2024-10-30 Juan M. Romero-Jerez , F. Javier Lopez-Martinez , Juan P. Peña-Martin , Ali Abdi

In this paper, we describe a general algorithmic framework for solving linear signal or feature fusion optimization problems in a distributed setting, for example in a wireless sensor network (WSN). These problems require linearly combining…

Signal Processing · Electrical Eng. & Systems 2023-05-12 Cem Ates Musluoglu , Alexander Bertrand

This paper addresses the difficulty of characterizing the time-varying nature of fading channels. The current time-invariant models often fall short of capturing and tracking these dynamic characteristics. To overcome this limitation, we…

Signal Processing · Electrical Eng. & Systems 2024-02-22 Eya Ben Amar , Nadhir Ben Rached , Raul Tempone , Mohamed-Slim Alouini

In this paper, the effects of interference on composite fading environments, where multipath fading coexists with shadowing, are investigated. Based on some mathematical convenient expressions for the sum of squared…

Information Theory · Computer Science 2014-06-17 Petros S. Bithas , Athanasios A. Rontogiannis

A novel unified frequency diverse array (FDA) and spatial data focusing (SDF) approach is proposed to simultaneously overcome time-variance and precision constraints of conventional FDA in geocasting, i.e., spatially confined broadcasting,…

Signal Processing · Electrical Eng. & Systems 2023-02-27 Guylian Molineaux , Francois Horlin , Philippe De Doncker , Julien Sarrazin

Growing requirements of future wireless communication systems, such as high data rates, high reliability, and low latency, make the active usage of Non-Terrestrial Networks (NTN) an inevitable necessity. In this regard, High Altitude…

Signal Processing · Electrical Eng. & Systems 2024-08-28 Muhammet Kirik , Liza Afeef , Huseyin Arslan

Motivated by recent work on studying massive imaging data in various neuroimaging studies, we propose a novel spatially varying coefficient model (SVCM) to spatially model the varying association between imaging measures in a…

Methodology · Statistics 2014-12-01 Hongtu Zhu , Jianqing Fan , Linglong Kong

3D scene stylization approaches based on Neural Radiance Fields (NeRF) achieve promising results by optimizing with Nearest Neighbor Feature Matching (NNFM) loss. However, NNFM loss does not consider global style information. In addition,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Wenjie Liu , Zhongliang Liu , Xiaoyan Yang , Man Sha , Yang Li

The efficient representation, transmission, and reconstruction of three-dimensional (3D) contents are becoming increasingly important for sixth-generation (6G) networks that aim to merge virtual and physical worlds for offering immersive…

Information Theory · Computer Science 2024-06-19 Guanlin Wu , Zhonghao Lyu , Juyong Zhang , Jie Xu

While the 5th generation (5G) of mobile networks has landed in the commercial area, the research community is exploring new functionalities for 6th generation (6G) networks, for example non-terrestrial networks (NTNs) via space/air nodes…

Networking and Internet Architecture · Computer Science 2023-05-10 Mattia Sandri , Matteo Pagin , Marco Giordani , Michele Zorzi

Accurate 3D medical image segmentation requires a delicate balance between fine-grained local details and global contextual understanding. While spatial-domain models often struggle with long-range dependencies, existing frequency-based…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Bo Zhang , Yifan Zhang , Shuo Yan , Yu Bai , Zheng Zhang , Wu Liu , Wendong Wang , Yongdong Zhang

3GPP release 15 focusing on 5G general outline has been published in December 2017. The major difference with respect to currently deployed LTE is the support of various physical layer numerologies. Making the physical layer scalable allows…

Information Theory · Computer Science 2018-05-16 David Demmer , Robin Gerzaguet , Jean-Baptiste Doré , Didier Le Ruyet

Accurate channel estimation is essential for massive multiple-input multiple-output (MIMO) technologies in next-generation wireless communications. Recently, the radio radiance field (RRF) has emerged as a promising approach for wireless…

Networking and Internet Architecture · Computer Science 2026-03-05 Chengling Xu , Huiwen Zhang , Haijian Sun , Feng Ye

Extremely large-scale multiple-input multiple-output (XL-MIMO) is regarded as a promising technology for next-generation communication systems. However, this will expand the near-field (NF) range, rendering more users more likely to be…

Signal Processing · Electrical Eng. & Systems 2025-07-01 Zihang Ding , Jianhua Zhang , Changsheng You , Pan Tang , Hongbo Xing , Zhiqiang Yuan , Jie Meng , Guangyi Liu

Extremely large aperture array (ELAA) is anticipated to serve as a pivotal feature of future multiple-input multiple-output (MIMO) systems in 6G. Near-field (NF) fading channel models are essential for reliable link-level simulation and…

Information Theory · Computer Science 2024-10-28 Jiuyu Liu , Yi Ma , Ahmed Elzanaty , Rahim Tafazolli

In the sixth-generation (6G), with the further expansion of array element number and frequency bands, the wireless communications are expected to operate in the near-field region. The near-field radio communications (NFRC) will become…

Signal Processing · Electrical Eng. & Systems 2024-05-17 Haiyang Miao , Pan Tang , Weirang Zuo , Qi Wei , Lei Tian , Jianhua Zhang

In December 2017, the Third Generation Partnership Project (3GPP) released the first set of specifications for 5G New Radio (NR), which is currently the most widely accepted 5G cellular standard. 5G NR is expected to replace LTE and…

Networking and Internet Architecture · Computer Science 2018-04-10 Marc Lichtman , Raghunandan M. Rao , Vuk Marojevic , Jeffrey H. Reed , Roger Piqueras Jover

In this work, we address fusion of heterogeneous sensor data using wavelet-based summaries of fused self-similarity information from each sensor. The technique we develop is quite general, does not require domain specific knowledge or…

Computer Vision and Pattern Recognition · Computer Science 2019-01-08 Christopher J. Tralie , Paul Bendich , John Harer

The 3rd generation partnership project (3GPP) has been engaged in further advancing the evolved universal mobile telecommunications system (UMTS) terrestrial radio access network (E-UTRAN) and UTRAN based radio access network technologies.…

Information Theory · Computer Science 2018-03-01 Mirza Golam Kibria , Kien Nguyen , Gabriel Porto Villardi , Kentaro Ishizu , Fumihide Kojima

Geometric consistency, i.e. the preservation of neighbourhoods, is a natural and strong prior in 3D shape matching. Geometrically consistent matchings are crucial for many downstream applications, such as texture transfer or statistical…

Graphics · Computer Science 2025-07-30 Paul Roetzer , Florian Bernard