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Beamforming with a sufficient number of antennas is one of the most significant technologies for both Multi-user (MU) Multiple-input Multiple-output (MIMO) communication and MIMO radar sensing in Integrated Sensing and Communication (ISAC)…

Signal Processing · Electrical Eng. & Systems 2025-10-17 Jiangong Chen , Xia Lei , Yuchen Zhang , Kaitao Meng , Christos Masouros

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

With the proliferation of wireless electrocardiogram (ECG) systems for health monitoring and authentication, protecting signal integrity against tampering is becoming increasingly important. This paper analyzes the performance of CNN,…

Machine Learning · Computer Science 2025-08-06 Siddhant Deshpande , Yalemzerf Getnet , Waltenegus Dargie

The four-dimensional nonlinear model is extended to include the inter-channel stimulated Raman scattering, enabling accurate prediction of dual-polarization four-dimensional modulation formats and probabilistically shaped constellations in…

Signal Processing · Electrical Eng. & Systems 2025-09-15 Zhiwei Liang , Bin Chen , Jiwei Xu , Yi Lei , Qingqing Hu , Fan Zhang , Gabriele Liga

We present a distributed antenna array supporting open-loop distributed beamforming at 1.5 GHz. Based on a scalable, high-accuracy internode ranging technique, we demonstrate open-loop beamforming experiments using three transmitting nodes.…

Signal Processing · Electrical Eng. & Systems 2020-08-19 Sean M. Ellison , Jeffrey A. Nanzer

Graphene nanoribbons (GNRs) are atomically precise stripes of graphene with tunable electronic properties, making them promising for room-temperature switching applications like field-effect transistors (FETs). However, challenges persist…

This paper presents a new technique for evaluating the consistency of the reference impedance in multiline thru-reflect-line (TRL) calibration. During the calibration process, it is assumed that all transmission line standards have the same…

A study of channel hardening in a large-scale antenna system has been carried out by means of indoor channel measurements over four frequency bands, namely 1.472 GHz, 2.6 GHz, 3.82 GHz and 4.16 GHz. NTNU's Reconfigurable Radio Network…

Information Theory · Computer Science 2019-05-17 Golsa Ghiaasi , Jens Abraham , Egil Eide , Torbjörn Ekman

Multiple transmitting antennas can considerably increase the downlink spectral efficiency by beamforming to multiple users at the same time. However, multiuser beamforming requires channel state information (CSI) at the transmitter, which…

Information Theory · Computer Science 2017-01-31 Xu Du , John Tadrous , Ashutosh Sabharwal

We report generation of cascaded rotational Raman scattering up to 58th orders in coherently excited CO_2 molecules. The high-order Raman scattering, which produces a quasiperiodic frequency comb with more than 600 sidebands, is obtained…

As large language models span dense, mixture-of-experts, and state-space architectures and are deployed on heterogeneous accelerators under increasingly diverse multimodal workloads, optimising inference energy has become as critical as…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Vittorio Palladino , Gianluca Palermo , Michael E. Papka , Zhiling Lan

In this paper we report on the details of the derivation of approximate closed-form results related to the coherence effect in non-linear noise accumulation, in the context of the GN-model of fiber non-linearity. The coherence effect is…

Signal Processing · Electrical Eng. & Systems 2020-03-10 Pierluigi Poggiolini

The upper mid-band (or FR3, spanning 6-24 GHz) is a crucial frequency range for next-generation mobile networks, offering a favorable balance between coverage and spectrum efficiency. From another perspective, the systems operating in the…

Signal Processing · Electrical Eng. & Systems 2024-12-05 Ali Rasteh , Raghavendra Palayam Hari , Hao Guo , Marco Mezzavilla , Sundeep Rangan

Transformer-based foundation models for Electrocardiograms (ECGs) have recently achieved impressive performance in many downstream applications.

Machine Learning · Computer Science 2025-10-27 Phu X. Nguyen , Huy Phan , Hieu Pham , Christos Chatzichristos , Bert Vandenberk , Maarten De Vos

The design and performance of an electron spin resonance spectrometer operating at 3 and 9 GHz microwave frequencies combined with a 9 T superconducting magnet is described. The probehead contains a compact two-loop, one gap resonator and…

Other Condensed Matter · Physics 2009-11-10 Ferenc Simon , Ferenc Muranyi

Electroencephalography (EEG) interpretation using multimodal large language models (MLLMs) offers a novel approach for analyzing brain signals. However, the complex nature of brain activity introduces critical challenges: EEG signals…

Signal Processing · Electrical Eng. & Systems 2025-10-02 Ziyi Zeng , Zhenyang Cai , Yixi Cai , Xidong Wang , Junying Chen , Rongsheng Wang , Yipeng Liu , Siqi Cai , Benyou Wang , Zhiguo Zhang , Haizhou Li

We report a line-scanning imaging modality of Compressive Raman technology with a single-pixel detector. The spatial information along the illumination line is encoded onto one axis of a digital micromirror device, while spectral coding…

Due to the rapid growth of Electrical Capacitance Tomography (ECT) applications in several industrial fields, there is a crucial need for developing high quality, yet fast, methodologies of image reconstruction from raw capacitance…

Image and Video Processing · Electrical Eng. & Systems 2024-04-09 Wael Deabes , Alaa E. Abdel-Hakim

Timely access to laboratory values is critical for clinical decision-making, yet current approaches rely on invasive venous sampling and are intrinsically delayed. Electrocardiography (ECG), as a non-invasive and widely available signal,…

Machine Learning · Computer Science 2025-10-28 Yujie Xiao , Gongzhen Tang , Wenhui Liu , Jun Li , Guangkun Nie , Zhuoran Kan , Deyun Zhang , Qinghao Zhao , Shenda Hong

As 6G research advances, the growing demand leads to the emergence of novel technologies such as integrated sensing and communication (ISAC), new antenna arrays like extremely large MIMO (XL-MIMO) and reconfigurable intelligent surfaces…

Signal Processing · Electrical Eng. & Systems 2025-06-16 Huiwen Gong , Jianhua Zhang , Yuxiang Zhang , Guangyi Liu