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Reconfigurable intelligent surface (RIS) is an emerging technology for improving performance in fifth-generation (5G) and beyond networks. Practically channel estimation of RIS-assisted systems is challenging due to the passive nature of…

信号处理 · 电气工程与系统科学 2021-07-16 Nipuni Ginige , K. B. Shashika Manosha , Nandana Rajatheva , Matti Latva-aho

Convolutional neural networks (CNNs) are effective for hyperspectral image (HSI) classification, but their 3D convolutional structures introduce high computational costs and limited generalization in few-shot scenarios. Domain shifts caused…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Anyong Qin , Chaoqi Yuan , Qiang Li , Feng Yang , Tiecheng Song , Chenqiang Gao

In the realm of wireless communication, stochastic modeling of channels is instrumental for the assessment and design of operational systems. Deep learning neural networks (DLNN), including generative adversarial networks (GANs), are being…

Accurate and efficient estimation of the high dimensional channels is one of the critical challenges for practical applications of massive multiple-input multiple-output (MIMO). In the context of hybrid analog-digital (HAD) transceivers,…

信息论 · 计算机科学 2022-02-08 Jiabao Gao , Caijun Zhong , Geoffrey Ye Li , Zhaoyang Zhang

High-mobility scenarios in next-generation wireless networks, such as those involving vehicular communications, require ultra-reliable and low-latency communications (URLLC). However, rapidly time-varying channels pose significant…

信息论 · 计算机科学 2025-10-21 Zhaowei Guan , Wenkun Wen , Peiran Wu , Chen Wang , Minghua Xia

In this paper, we propose a deep learning model for Demodulation Reference Signal (DMRS) based channel estimation task. Specifically, a novel Denoise, Linear interpolation and Refine (DLR) pipeline is proposed to mitigate the noise…

信号处理 · 电气工程与系统科学 2021-09-23 Yu Tian , Chengguang Li , Sen Yang

Convolutional Neural Network (CNN) have been widely used in image classification. Over the years, they have also benefited from various enhancements and they are now considered as state of the art techniques for image like data. However,…

计算机视觉与模式识别 · 计算机科学 2022-06-06 Thomas Gonzalez , Antoine Blais , Nicolas Couëllan , Christian Ruiz

This paper proposes to use a deep neural network (DNN)-based symbol detector for mmWave systems such that CSI acquisition can be bypassed. In particular, we consider a sliding bidirectional recurrent neural network (BRNN) architecture that…

信号处理 · 电气工程与系统科学 2019-07-29 Yun Liao , Nariman Farsad , Nir Shlezinger , Yonina C. Eldar , Andrea J. Goldsmith

The great potentials of massive Multiple-Input Multiple-Output (MIMO) in Frequency Division Duplex (FDD) mode can be fully exploited when the downlink Channel State Information (CSI) is available at base stations. However, the accurate CSI…

信息论 · 计算机科学 2024-10-30 Jiajia Guo , Tong Chen , Shi Jin , Geoffrey Ye Li , Xin Wang , Xiaolin Hou

Accurate classification of fine-grained images remains a challenge in backbones based on convolutional operations or self-attention mechanisms. This study proposes novel dual-current neural networks (DCNN), which combine the advantages of…

计算机视觉与模式识别 · 计算机科学 2024-05-08 Da Fu , Mingfei Rong , Eun-Hu Kim , Hao Huang , Witold Pedrycz

In this paper, we propose an algorithm for downlink (DL) channel covariance matrix (CCM) estimation for frequency division duplexing (FDD) massive multiple-input multiple-output (MIMO) communication systems with base station (BS) possessing…

机器学习 · 计算机科学 2025-09-23 Melih Can Zerin , Elif Vural , Ali Özgür Yılmaz

With the proliferation of deep learning techniques for wireless communication, several works have adopted learning-based approaches to solve the channel estimation problem. While these methods are usually promoted for their computational…

信息论 · 计算机科学 2022-11-22 Mohamed Akrout , Amal Feriani , Faouzi Bellili , Amine Mezghani , Ekram Hossain

In this paper, we propose a deep-learning-based channel estimation scheme in an orthogonal frequency division multiplexing (OFDM) system. Our proposed method, named Single Slot Recurrence Along Frequency Network (SisRafNet), is based on a…

信号处理 · 电气工程与系统科学 2024-01-12 Abu Shafin Mohammad Mahdee Jameel , Akshay Malhotra , Aly El Gamal , Shahab Hamidi-Rad

We investigate methods for experimental performance enhancement of auto-encoders based on a recurrent neural network (RNN) for communication over dispersive nonlinear channels. In particular, our focus is on the recently proposed sliding…

信号处理 · 电气工程与系统科学 2020-05-19 Boris Karanov , Mathieu Chagnon , Vahid Aref , Filipe Ferreira , Domanic Lavery , Polina Bayvel , Laurent Schmalen

5G networks provide more bandwidth and more complex control to enhance user's experiences, while also requiring a more accurate estimation of the communication channels compared with previous mobile networks. In this paper, we propose a…

网络与互联网体系结构 · 计算机科学 2020-08-04 Hao Yin , Xiaojun Guo , Pengyu Liu , Xiaojun Hei , Yayu Gao

In multiple-input multiple-output (MIMO) systems, it is crucial of utilizing the available channel state information (CSI) at the transmitter for precoding to improve the performance of frequency division duplex (FDD) networks. One of the…

信号处理 · 电气工程与系统科学 2022-04-28 Xiangyi Li , Huaming Wu

Objective: To propose novel SSVEP classification methodologies using deep neural networks (DNNs) and improve performances in single-channel and user-independent brain-computer interfaces (BCIs) with small data lengths. Approach: We propose…

信号处理 · 电气工程与系统科学 2022-04-05 Pedro R. A. S. Bassi , Romis Attux

Long short-term memory (LSTM) based acoustic modeling methods have recently been shown to give state-of-the-art performance on some speech recognition tasks. To achieve a further performance improvement, in this research, deep extensions on…

计算与语言 · 计算机科学 2015-05-12 Xiangang Li , Xihong Wu

Accurate short-term energy consumption forecasting is essential for efficient power grid management, resource allocation, and market stability. Traditional time-series models often fail to capture the complex, non-linear dependencies and…

计算机与社会 · 计算机科学 2026-01-27 Abhishek Maity , Viraj Tukarul

In this work, we propose a convolutional neural network (CNN) based low-complexity approach for downlink (DL) channel estimation (CE) in frequency division duplex (FDD) systems. In contrast to existing work, we use training data which…

信息论 · 计算机科学 2021-05-26 B. Fesl , N. Turan , M. Koller , M. Joham , W. Utschick