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Massive multiple-input multiple-output (MIMO) techniques have been recently advanced to tremendously improve the performance of wireless networks. However, the use of very large antenna arrays brings new issues, such as the significantly…

Information Theory · Computer Science 2013-06-07 Yong Zeng , Rui Zhang , Zhi Ning Chen

A theoretical framework for the quasi-monochromatic electromagnetic (EM) processes such as excitation and propagation of long wave packets in dispersive, dissipative, bianisotropic media with weak and slow nonlinearity is developed. The…

Optics · Physics 2018-04-06 Stanislav I. Maslovski

Efficient and accurate prediction of Multiphysics evolution across diverse cell geometries is fundamental to the design, management and safety of lithium-ion batteries. However, existing computational frameworks struggle to capture the…

Computational Engineering, Finance, and Science · Computer Science 2026-03-19 Zhiwei Zhao , Changqing Liu , Jie Lin , Fan Yang , Yifan Zhang , Yan Jin , Yingguang Li

The Expectation--Maximization (EM) algorithm is a simple meta-algorithm that has been used for many years as a methodology for statistical inference when there are missing measurements in the observed data or when the data is composed of…

Machine Learning · Statistics 2022-11-15 Hideitsu Hino , Shotaro Akaho , Noboru Murata

The control of the interaction between several quantum emitters using nanophotonic structures holds great promise for quantum technology applications. However, the theoretical description of such processes for complex nanostructures is a…

This paper explores the emerging research direction of electromagnetic information theory (EIT), which aims to integrate traditional Shannon-based methodologies with physical consistency, particularly the electromagnetic properties of…

Information Theory · Computer Science 2025-03-11 Tengjiao Wang , Zhenyu Kang , Ting Li , Zhihui Chen , Shaobo Wang , Yingpei Lin , Yan Wang , Yichuan Yu

Ultra-massive multiple-input multiple-output MIMO (UM-MIMO) leverages large antenna arrays at high frequencies, transitioning communication paradigm into the radiative near-field (NF), where spherical wavefronts enable full-vector…

Signal Processing · Electrical Eng. & Systems 2025-07-21 Ahmed Hussain , Asmaa Abdallah , Abdulkadir Celik , Ahmed M. Eltawil

The use of high-frequency bands, combined with antenna arrays containing an extremely large number of elements (XL-MIMO), is pushing current technology to its limits in terms of hardware complexity, latency, and power consumption. A…

Signal Processing · Electrical Eng. & Systems 2025-12-05 Mattia Fabiani , Giulia Torcolacci , Davide Dardari

The paper proposes a multi-body electromagnetic (EM) model for the quantitative evaluation of the influence of multiple human bodies in the surroundings of a radio link. Modeling of human-induced fading is the key element for the…

Signal Processing · Electrical Eng. & Systems 2022-02-16 Vittorio Rampa , Gian Guido Gentili , Stefano Savazzi , Michele D'Amico

Holographic multiple-input and multiple-output (MIMO) communications introduce innovative antenna array configurations, such as dense arrays and volumetric arrays, which offer notable advantages over conventional planar arrays with…

Signal Processing · Electrical Eng. & Systems 2025-06-09 Shuai S. A. Yuan , Li Wei , Xiaoming Chen , Chongwen Huang , Wei E. I. Sha

The symmetry studies of Maxwell equations gave new insight on the nature of electromagnetic (EM) field. Tey are reviewed in the work presented. It is drawing the attention on the following aspects. EM-field has in general case quaternion…

Mathematical Physics · Physics 2013-07-11 Dmitri Yerchuck , Alla Dovlatova , Andrey Alexandrov

Electromagnetic (EM) scattering systems widely exist in EM engineering domain. For a certain objective scattering system, all of its working modes constitute a linear space, i.e. modal space. Characteristic mode theory (CMT) can effectively…

Classical Physics · Physics 2019-08-01 Renzun Lian

This paper introduces an accurate edge-based smoothed finite element method (ES-FEM) for electromagnetic analysis for both two dimensional cylindrical and three dimensional cartesian systems, which shows much better performance in terms of…

Computational Engineering, Finance, and Science · Computer Science 2019-10-30 Yangfan Zhang , Pengfei Wang , Wenping Li , Shunchuan Yang

Distributed space antennas using electromagnetic formation flight (EMFF) are a promising architecture for large-aperture, long-life space communication systems. Their feasible aperture, however, is governed by coupled constraints on antenna…

Signal Processing · Electrical Eng. & Systems 2026-05-25 Seang Shim , Yuta Takahashi , Naoto Usami , Shin-ichiro Sakai

This paper presents the concept, design, channel modeling, beamforming algorithm development, prototype fabrication, and experimental measurement of an electromagnetically reconfigurable fluid antenna system (ER-FAS), in which each FAS…

Signal Processing · Electrical Eng. & Systems 2025-10-17 Ruiqi Wang , Pinjun Zheng , Vijith Varma Kotte , Sakandar Rauf , Yiming Yang , Muhammad Mahboob Ur Rahman , Tareq Y. Al-Naffouri , Atif Shamim

Antenna array architectures based on programmable metasurfaces are emerging as a promising solution for scalable implementations of the eXtremely Large Multiple-Input Multiple-Output (XL-MIMO) systems paradigm, envisioned for 6-th…

Signal Processing · Electrical Eng. & Systems 2026-05-05 Panagiotis Gavriilidis , George C. Alexandropoulos

The proliferation of large multi-antenna configurations operating in high frequency bands has recently challenged the conventional far-field, rich-scattering paradigm of wireless channels. Extra large antenna arrays must usually work in the…

Information Theory · Computer Science 2024-10-14 Adrian Agustin , Xavier Mestre

The symmetry studies of Maxwell equations gave new insight on the nature of electromagnetic (EM) field. It has in general case quaternion single structure, consisting of four independent field constituents, which differ with each other by…

Quantum Physics · Physics 2011-09-21 Dmitri Yerchuck , Alla Dovlatova , Andrey Alexandrov

We propose a full-wave pseudo-analytical numerical electromagnetic (EM) algorithm to model subsurface induction sensors, traversing planar-layered geological formations of arbitrary EM material anisotropy and loss, which are used, for…

Computational Physics · Physics 2016-04-20 Kamalesh Sainath , Fernando L. Teixeira

Morphology of mitochondria plays critical roles in mediating their physiological functions. Accurate segmentation of mitochondria from 3D electron microscopy (EM) images is essential to quantitative characterization of their morphology at…

Computer Vision and Pattern Recognition · Computer Science 2022-06-16 Yunpeng Xiao , Youpeng Zhao , Ge Yang