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Millimeter-wave (mmWave) communications have been one of the promising technologies for future wireless networks that integrate a wide range of data-demanding applications. To compensate for the large channel attenuation in mmWave band and…

信号处理 · 电气工程与系统科学 2021-05-13 Hengtao He , Rui Wang , Weijie Jin , Shi Jin , Chao-Kai Wen , Geoffrey Ye Li

Multi-channel speech enhancement aims to extract clean speech from a noisy mixture using signals captured from multiple microphones. Recently proposed methods tackle this problem by incorporating deep neural network models with spatial…

声音 · 计算机科学 2021-02-16 Panagiotis Tzirakis , Anurag Kumar , Jacob Donley

Simulating complex dynamics like fluids with traditional simulators is computationally challenging. Deep learning models have been proposed as an efficient alternative, extending or replacing parts of traditional simulators. We investigate…

机器学习 · 计算机科学 2022-03-16 Jonathan Klimesch , Philipp Holl , Nils Thuerey

The advantages of graph neural networks (GNNs) in leveraging the graph topology of wireless networks have drawn increasing attentions. This paper studies the GNN-based learning approach for the sum-rate maximization in multiple-user…

系统与控制 · 电气工程与系统科学 2023-11-08 Yuhang Li , Yang Lu , Bo Ai , Octavia A. Dobre , Zhiguo Ding , Dusit Niyato

True-time-delay (TTD) beamformers can produce wideband, squint-free beams in both analog and digital signal domains, unlike frequency-dependent FFT beams. Our previous work showed that TTD beamformers can be efficiently realized using the…

机器学习 · 计算机科学 2025-03-27 Hansaka Aluvihare , Sivakumar Sivasankar , Xianqi Li , Arjuna Madanayake , Sirani M. Perera

Hybrid digital and analog beamforming is a highly effective technique for implementing beamforming methods in millimeter wave (mmWave) systems. It provides a viable solution to replace the complex fully digital beamforming techniques.…

信息论 · 计算机科学 2025-09-30 Rohollah Vahdani , S. Mohammad Razavizadeh

In this work, a novel multifidelity machine learning (ML) model, the gradient-enhanced multifidelity neural networks (GEMFNNs), is proposed. This model is a multifidelity version of gradient-enhanced neural networks (GENNs) as it uses both…

机器学习 · 计算机科学 2021-03-24 Jethro Nagawkar , Leifur Leifsson

Ultra-reliability and low-latency are two key components in 5G networks. In this letter, we investigate the problem of ultra-reliable and low-latency communication (URLLC) in millimeter wave (mmWave)-enabled massive multiple-input…

信息论 · 计算机科学 2017-05-22 Trung Kien Vu , Chen-Feng Liu , Mehdi Bennis , Mérouane Debbah , Matti Latva-aho , Choong Seon Hong

Graph neural network (GNN) is achieving remarkable performances in a variety of application domains. However, GNN is vulnerable to noise and adversarial attacks in input data. Making GNN robust against noises and adversarial attacks is an…

机器学习 · 计算机科学 2022-08-04 Bharat Runwal , Vivek , Sandeep Kumar

Beamforming is a key technology in millimeter-wave (mmWave) communications that improves signal transmission by optimizing directionality and intensity. However, conventional channel estimation methods, such as pilot signals or beam…

网络与互联网体系结构 · 计算机科学 2025-12-02 Yu Min Park , Yan Kyaw Tun , Eui-Nam Huh , Walid Saad , Choong Seon Hong

Modeling and simulation of complex fluid flows with dynamics that span multiple spatio-temporal scales is a fundamental challenge in many scientific and engineering domains. Full-scale resolving simulations for systems such as highly…

机器学习 · 计算机科学 2025-02-13 Han Gao , Sebastian Kaltenbach , Petros Koumoutsakos

A novel time-efficient framework is proposed for improving the robustness of a broadband multiple-input multiple-output (MIMO) system against unknown interference under rapidly-varying channels. A mean-squared error (MSE) minimization…

信号处理 · 电气工程与系统科学 2025-03-04 Jingjing Zhao , Jing Su , Kaiquan Cai , Yanbo Zhu , Yuanwei Liu , Naofal Al-Dhahir

Millimeter wave communications are essential for modern wireless networks. It supports high data rates but suffers from severe path loss, which requires precise beam alignment to maintain reliable links. This beam management is particularly…

信号处理 · 电气工程与系统科学 2025-11-05 Ailton Oliveira , Amir Khatibi , Daniel Suzuki , Ilan Correa , José Rezende , Aldebaro Klautau

Machine learning (ML) models can effectively optimize a multi-cell wireless network by designing the beamforming vectors and association decisions. Existing ML designs, however, often needs to approximate the integer association variables…

信号处理 · 电气工程与系统科学 2025-06-06 Qing Lyu , Mai Vu

The online prediction of multivariate signals, existing simultaneously in space and time, from noisy partial observations is a fundamental task in numerous applications. We propose an efficient Neural Network architecture for the online…

机器学习 · 计算机科学 2024-01-30 Yi Yan , Changran Peng , Ercan Engin Kuruoglu

Vanishing long-term gradients are a major issue in training standard recurrent neural networks (RNNs), which can be alleviated by long short-term memory (LSTM) models with memory cells. However, the extra parameters associated with the…

计算与语言 · 计算机科学 2018-02-26 Chao Zhang , Philip Woodland

Far-field speech recognition in noisy and reverberant conditions remains a challenging problem despite recent deep learning breakthroughs. This problem is commonly addressed by acquiring a speech signal from multiple microphones and…

音频与语音处理 · 电气工程与系统科学 2018-10-17 Zhong Meng , Shinji Watanabe , John R. Hershey , Hakan Erdogan

Reconfigurable intelligent surface (RIS) is considered as a promising solution for next-generation wireless communication networks due to a variety of merits, e.g., customizing the communication environment. Therefore, deploying multiple…

信号处理 · 电气工程与系统科学 2023-02-09 Mengbing Liu , Chongwen Huang , Marco Di Renzo , Merouane Debbah , Chau Yuen

Millimeter wave (mmWave) and massive MIMO systems are intrinsic components of 5G and beyond. These systems rely on using beamforming codebooks for both initial access and data transmission. Current beam codebooks, however, generally consist…

信号处理 · 电气工程与系统科学 2020-06-26 Muhammad Alrabeiah , Yu Zhang , Ahmed Alkhateeb

There has been a growing interest in developing data-driven, and in particular deep neural network (DNN) based methods for modern communication tasks. For a few popular tasks such as power control, beamforming, and MIMO detection, these…

信号处理 · 电气工程与系统科学 2022-05-11 Haoran Sun , Wenqiang Pu , Xiao Fu , Tsung-Hui Chang , Mingyi Hong