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Random beamforming (RBF) is a practically favourable transmission scheme for multiuser multi-antenna downlink systems since it requires only partial channel state information (CSI) at the transmitter. Under the conventional single-cell…

信息论 · 计算机科学 2016-11-18 Hieu Duy Nguyen , Rui Zhang , Hon Tat Hui

Cell-free (CF) massive multiple-input-multiple-output (mMIMO) deployments are usually investigated with half-duplex nodes and high-capacity fronthaul links. To leverage the possible gains in throughput and energy efficiency (EE) of…

信号处理 · 电气工程与系统科学 2021-12-13 Soumyadeep Datta , Dheeraj Naidu Amudala , Ekant Sharma , Rohit Budhiraja , Shivendra S. Panwar

The fluid antenna system (FAS) is a disruptive tech-nology for future wireless communication networks. This paper considers the joint optimization of beamforming matrices and antenna positions for weighted sum rate (WSR) maximization in…

信息论 · 计算机科学 2025-09-26 Tianyi Liao , Wei Guo , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

In this paper, we study the optimal waveform design for wireless power transfer (WPT) from a multi-antenna energy transmitter (ET) to multiple single-antenna energy receivers (ERs) simultaneously in multi-path frequency-selective channels.…

信息论 · 计算机科学 2021-01-01 Samith Abeywickrama , Rui Zhang , Chau Yuen

The sixth-generation (6G) of wireless communication networks aims to leverage artificial intelligence tools for efficient and robust network optimization. This is especially the case since traditional optimization methods often face high…

信息论 · 计算机科学 2026-02-09 Anh Thi Bui , Robert-Jeron Reifert , Hayssam Dahrouj , Aydin Sezgin

This paper introduces WavesFM, a novel Wireless Foundation Model (WFM) framework, capable of supporting a wide array of communication, sensing, and localization tasks. Our proposed architecture combines a shared Vision Transformer (ViT)…

信号处理 · 电气工程与系统科学 2025-04-22 Ahmed Aboulfotouh , Elsayed Mohammed , Hatem Abou-Zeid

The freedom of design of coded masks used by mask-based lensless cameras is an advantage these systems have when compared to lens-based ones. We leverage this freedom of design to propose a shape-preserving optimization scheme for a…

图像与视频处理 · 电气工程与系统科学 2025-10-28 Jose Reinaldo Cunha Santos A V Silva Neto , Tomoya Nakamura , Yasushi Makihara , Yasushi Yagi

Widespread adoption of high-temperature polymer electrolyte membrane fuel cells (HT-PEMFCs) and HT-PEM electrochemical hydrogen pumps (HT-PEM ECHPs) requires models and computational tools that provide accurate scale-up and optimization.…

机器学习 · 计算机科学 2022-03-01 Luis A. Briceno-Mena , Christopher G. Arges , Jose A. Romagnoli

Waveform optimization has shown its great potential to boost the performance of far-field wireless power transfer (WPT). Current research has optimized transmit waveform, adaptive to channel state information (CSI), to maximize the…

信号处理 · 电气工程与系统科学 2023-05-15 Yumeng Zhang , Bruno Clerckx

Future wireless communication systems must simultaneously address multiple challenges to ensure accurate data detection, deliver high Quality of Service (QoS), adding enable a high data transmission with low system design. Additionally,…

信息论 · 计算机科学 2024-10-03 Amina Darghouthi , Abdelhakim Khlifi , Belgacem Chibani

Waveform optimization has recently been shown to be a key technique to boost the efficiency and range of far-field wireless power transfer (WPT). Current research has optimized transmit waveform adaptive to channel state information (CSI)…

信号处理 · 电气工程与系统科学 2021-11-30 Yumeng Zhang , Bruno Clerckx

Far-field Wireless Power Transfer (WPT) and Simultaneous Wireless Information and Power Transfer (SWIPT) have attracted significant attention in the RF and communication communities. Despite the rapid progress, the problem of waveform…

信息论 · 计算机科学 2016-11-18 Bruno Clerckx , Ekaterina Bayguzina , David Yates , Paul D. Mitcheson

Free-electron lasers (FELs) provide a revolutionary tool for capturing the structure and dynamics of matter in real time at the atomic scale. The size and cost of FELs can be substantially reduced by using laser wakefield acceleration…

加速器物理 · 物理学 2026-03-31 Hengyuan Xiao , Fei Li , Shuang Liu , Yuchen Jiang , Siqin Ding , Zhi Song , Jianfei Hua , Wei Lu

This paper considers the beamforming design for a multiuser multiple-input single-output (MISO) downlink with an arbitrary number of (context-specific) shaping constraints. In this setup, the state-of-the-art beamforming schemes cannot…

信息论 · 计算机科学 2017-04-05 Feng Wang , Chongbin Xu , Yongwei Huang , Xin Wang , Xiqi Gao

The impressive growth of wireless data networks has recently led to increased attention to the issue of electromagnetic pollution and the fulfillment of electromagnetic field (EMF) exposure limits. This paper tackles the problem of power…

信号处理 · 电气工程与系统科学 2025-12-01 Sergi Liesegang , Stefano Buzzi

Metasurfaces are envisaged to play a key role in next-generation wireless systems due to their powerful control over electromagnetic waves. The last decade has witnessed huge advances in this regard, shifting from static to programmable…

Electromagnetic forming and perforations (EMFP) are complex and innovative high strain rate processes that involve electromagnetic-mechanical interactions for simultaneous metal forming and perforations. Instead of spending costly resources…

数值分析 · 数学 2024-12-16 Avinash Chetry , Arup Nandy

The multi-user Holographic Multiple-Input and Multiple-Output Surface (MU-HMIMOS) paradigm, which is capable of realizing large continuous apertures with minimal power consumption and of shaping radio wave propagation at will, has been…

Implementing electrophysiological recordings within an MRI environment is challenging due to complex interactions between recording probes and MRI-generated fields, which can affect both safety and data quality. This study aims to develop…

Accurate emulation of multi-scale physical systems governed by PDEs demands models that remain stable over long autoregressive rollouts while preserving fine-scale structures. Deterministic emulators produce overly-smoothed predictions,…