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In this paper, we introduce an autoencoder (AE)-based scheme for end-to-end optimization of a multi-user molecule mixture communication system. In the proposed scheme, each transmitter leverages an encoder network that maps the user symbol…

Inspired by providing reliable communications for high-mobility scenarios, in this letter, we investigate the channel estimation and signal detection in integrated sensing and communication~(ISAC) systems based on the orthogonal…

Signal Processing · Electrical Eng. & Systems 2024-06-04 Dezhi Wang , Chongwen Huang , Lei Liu , Xiaoming Chen , Wei Wang , Zhaoyang Zhang , Chau Yuen , Mérouane Debbah

Accelerating deep neural networks (DNNs) has been attracting increasing attention as it can benefit a wide range of applications, e.g., enabling mobile systems with limited computing resources to own powerful visual recognition ability. A…

Computer Vision and Pattern Recognition · Computer Science 2017-12-21 Tianshui Chen , Liang Lin , Wangmeng Zuo , Xiaonan Luo , Lei Zhang

In an aerial hybrid massive multiple-input multiple-output (MIMO) and orthogonal frequency division multiplexing (OFDM) system, how to design a spectral-efficient broadband multi-user hybrid beamforming with a limited pilot and feedback…

Signal Processing · Electrical Eng. & Systems 2022-09-12 Zhen Gao , Minghui Wu , Chun Hu , Feifei Gao , Guanghui Wen , Dezhi Zheng , Jun Zhang

ElectrodeNet, a deep learning based sound coding strategy for the cochlear implant (CI), is proposed to emulate the advanced combination encoder (ACE) strategy by replacing the conventional envelope detection using various artificial neural…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-29 Enoch Hsin-Ho Huang , Rong Chao , Yu Tsao , Chao-Min Wu

We consider downlink (DL) channel estimation for frequency division duplex based massive MIMO systems under the multipath model. Our goal is to provide fast and accurate channel estimation from a small amount of DL training overhead. Prior…

Signal Processing · Electrical Eng. & Systems 2019-10-23 Cheng Qian , Xiao Fu , Nicholas D. Sidiropoulos

Extremely large-scale massive multiple-input multiple-output (XL-MIMO) systems introduce the much higher channel dimensionality and incur the additional near-field propagation effect, aggravating the computation load and the difficulty to…

Signal Processing · Electrical Eng. & Systems 2024-02-15 Shen Gao , Peihao Dong , Zhiwen Pan , Xiaohu You

In this paper, we propose an innovative learning-based channel prediction scheme so as to achieve higher prediction accuracy and reduce the requirements of huge amounts and strict sequential format of channel data. Inspired by the idea of…

Signal Processing · Electrical Eng. & Systems 2023-11-30 Zhuoran Xiao , Zhaoyang Zhang , Zirui Chen , Zhaohui Yang , Chongwen Huang , Xiaoming Chen

On the heels of orthogonal time frequency space (OTFS) modulation, the recently discovered affine frequency division multiplexing (AFDM) is a promising waveform for the sixth-generation wireless network. In this paper, we study the…

Information Theory · Computer Science 2023-08-29 Haoran Yin , Xizhang Wei , Yanqun Tang , Kai Yang

It is a widely accepted fact that data representations intervene noticeably in machine learning tools. The more they are well defined the better the performance results are. Feature extraction-based methods such as autoencoders are…

Neural and Evolutionary Computing · Computer Science 2018-06-12 Naima Chouikhi , Boudour Ammar , Adel M. Alimi

This paper focuses on leveraging deep representation learning (DRL) for speech enhancement (SE). In general, the performance of the deep neural network (DNN) is heavily dependent on the learning of data representation. However, the DRL's…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-28 Yang Xiang , Jesper Lisby Højvang , Morten Højfeldt Rasmussen , Mads Græsbøll Christensen

Supervised deep learning has gained significant attention for speech enhancement recently. The state-of-the-art deep learning methods perform the task by learning a ratio/binary mask that is applied to the mixture in the time-frequency…

Sound · Computer Science 2020-02-03 Bahareh Tolooshams , Ritwik Giri , Andrew H. Song , Umut Isik , Arvindh Krishnaswamy

Spectrum sensing plays a critical role in dynamic spectrum sharing, a promising technology to address the radio spectrum shortage. In particular, sensing of Orthogonal frequency division multiplexing (OFDM) signals, a widely accepted…

Signal Processing · Electrical Eng. & Systems 2019-01-03 Qingqing Cheng , Zhenguo Shi , Diep N. Nguyen , Eryk Dutkiewicz

LiDAR-based place recognition is one of the key components of SLAM and global localization in autonomous vehicles and robotics applications. With the success of DL approaches in learning useful information from 3D LiDARs, place recognition…

Computer Vision and Pattern Recognition · Computer Science 2023-01-05 Tiago Barros , Luís Garrote , Ricardo Pereira , Cristiano Premebida , Urbano J. Nunes

This paper proposes a deep learning (DL) model for automatic sleep stage classification based on single-channel EEG data. The DL model features a convolutional neural network (CNN) and transformers. The model was designed to run on energy…

Signal Processing · Electrical Eng. & Systems 2022-11-24 Zongyan Yao , Xilin Liu

Channel estimation is one of the most important parts in current mobile communication systems. Among the huge contributions in channel estimation studies, the discrete Fourier transform (DFT)-based channel estimation has attracted lots of…

Information Theory · Computer Science 2015-04-29 H. Yu , C. Yang

A novel method for identifying the nature of QCD transitions in heavy-ion collision experiments is introduced. PointNet based Deep Learning (DL) models are developed to classify the equation of state (EoS) that drives the hydrodynamic…

High Energy Physics - Phenomenology · Physics 2021-10-26 Manjunath Omana Kuttan , Kai Zhou , Jan Steinheimer , Andreas Redelbach , Horst Stoecker

The spread of deepfakes poses significant security concerns, demanding reliable detection methods. However, diverse generation techniques and class imbalance in datasets create challenges. We propose CAE-Net, a Convolution- and…

Computer Vision and Pattern Recognition · Computer Science 2025-12-29 Anindya Bhattacharjee , Kaidul Islam , Kafi Anan , Ashir Intesher , Abrar Assaeem Fuad , Utsab Saha , Hafiz Imtiaz

Channel estimation and hybrid precoding are considered for multi-user millimeter wave massive multi-input multi-output system. A deep learning compressed sensing (DLCS) channel estimation scheme is proposed. The channel estimation neural…

Signal Processing · Electrical Eng. & Systems 2020-02-18 Wenyan Ma , Chenhao Qi , Zaichen Zhang , Julian Cheng

Dual-energy computed tomography (DECT) enables material-specific imaging through acquisitions at two different X-ray energy spectra. Material decomposition from DECT data is an ill-posed inverse problem that is highly sensitive to noise…