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Deep Learning (DL) models can be used to tackle time series analysis tasks with great success. However, the performance of DL models can degenerate rapidly if the data are not appropriately normalized. This issue is even more apparent when…

Many performance gains achieved by massive multiple-input and multiple-output depend on the accuracy of the downlink channel state information (CSI) at the transmitter (base station), which is usually obtained by estimating at the receiver…

信号处理 · 电气工程与系统科学 2024-10-28 Jiajia Guo , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li

Domain or statistical distribution shifts are a key staple of the wireless communication channel, because of the dynamics of the environment. Deep learning (DL) models for detecting multiple-input multiple-output (MIMO) signals in dynamic…

系统与控制 · 电气工程与系统科学 2024-08-08 Rashed Shelim , Walid Saad , Naren Ramakrishnan

In this paper, we propose novel non-linear precoders for the downlink of a multi-user MIMO system with the existence of multiple eavesdroppers. The proposed non-linear precoders are designed to improve the physical-layer secrecy rate.…

信息论 · 计算机科学 2016-10-25 X. Lu , R. C. de Lamare

With the growing complexity and dynamics of the mobile communication networks, accurately predicting key system parameters, such as channel state information (CSI), user location, and network traffic, has become essential for a wide range…

人工智能 · 计算机科学 2025-08-06 Yucheng Sheng , Jiacheng Wang , Xingyu Zhou , Le Liang , Hao Ye , Shi Jin , Geoffrey Ye Li

Discovering distinct features and their relations from data can help us uncover valuable knowledge crucial for various tasks, e.g., classification. In neuroimaging, these features could help to understand, classify, and possibly prevent…

机器学习 · 计算机科学 2022-02-15 Usman Mahmood , Zening Fu , Vince Calhoun , Sergey Plis

The cell-free massive multi-input multi-output (CF-mMIMO) is a promising technology for the six generation (6G) communication systems. Channel prediction will play an important role in obtaining the accurate CSI to improve the performance…

信号处理 · 电气工程与系统科学 2025-10-24 Yongning Qi , Tao Zhou , Zuowei Xiang , Liu Liu , Bo Ai

Accurate and effective channel state information (CSI) feedback is a key technology for massive multiple-input and multiple-output (MIMO) systems. Recently, deep learning (DL) has been introduced to enhance CSI feedback in massive MIMO…

信号处理 · 电气工程与系统科学 2023-02-01 Han Xiao , Wenqiang Tian , Wendong Liu , Zhi Zhang , Zhihua Shi , Li Guo , Jia Shen

This paper investigates the downlink (DL) transmit design for massive multiple-input multiple-output (MIMO) low-earth-orbit (LEO) satellite communication systems, where only the slow-varying statistical channel state information is…

信号处理 · 电气工程与系统科学 2022-02-01 Ke-Xin Li , Li You , Jiaheng Wang , Xiqi Gao , Christos G. Tsinos , Symeon Chatzinotas , Björn Ottersten

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…

信号处理 · 电气工程与系统科学 2019-10-23 Cheng Qian , Xiao Fu , Nicholas D. Sidiropoulos

Accurate communication performance prediction is crucial for wireless applications such as network deployment and resource management. Unlike conventional systems with a single transmit and receive antenna, throughput (Tput) estimation in…

信息论 · 计算机科学 2025-04-02 Fan-Hao Lin , Tzu-Hao Huang , Chao-Kai Wen , Trung Q. Duong

In this paper, we propose an end-to-end deep learning-based joint transceiver design algorithm for millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems, which consists of deep neural network (DNN)-aided pilot…

信息论 · 计算机科学 2021-10-27 Qiyu Hu , Yunlong Cai , Kai Kang , Guanding Yu , Jakob Hoydis , Yonina C. Eldar

As deep neural networks are increasingly deployed in dynamic, real-world environments, relying on a single static model is often insufficient. Changes in input data distributions caused by sensor drift or lighting variations necessitate…

机器学习 · 计算机科学 2025-09-26 Matteo Cardoni , Sam Leroux

Semantic communication has emerged as a promising approach for improving efficient transmission in the next generation of wireless networks. Inspired by the success of semantic communication in different areas, we aim to provide a new…

图像与视频处理 · 电气工程与系统科学 2023-12-11 Zhenguo Zhang , Qianqian Yang , Shibo He , Jiming Chen

This paper presents an energy-efficient downlink precoding scheme with the objective of maximizing system energy efficiency in a multi-cell massive MIMO system. The proposed precoding design jointly considers the issues of power control,…

网络与互联网体系结构 · 计算机科学 2018-12-27 Shuai Zhang , Lu Liu , Yu Cheng , Xianghui Cao , Sheng Zhou , Zhisheng Niu , Hangguan Shan

Channel estimation is very challenging when the receiver is equipped with a limited number of radio-frequency (RF) chains in beamspace millimeter-wave (mmWave) massive multiple-input and multiple-output systems. To solve this problem, we…

信息论 · 计算机科学 2019-01-15 Hengtao He , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li

Accurate indoor positioning for wireless communication systems represents an important step towards enhanced reliability and security, which are crucial aspects for realizing Industry 4.0. In this context, this paper presents an…

信号处理 · 电气工程与系统科学 2023-06-07 Ivo Bizon , Zhongju Li , Ahmad Nimr , Marwa Chafii , Gerhard P. Fettweis

Distributed MIMO (D-MIMO) has emerged as a key architecture for future sixth-generation (6G) networks, enabling cooperative transmission across spatially distributed access points (APs). However, most existing studies rely on idealized…

信号处理 · 电气工程与系统科学 2026-04-14 Tianzheng Miao , Thomas Feys , Gilles Callebaut , Jarne Van Mulders , Md Arifur Rahman , François Rottenberg

Massive multiuser (MU) multiple-input multiple-output (MIMO) will be a core technology in fifth-generation (5G) wireless systems as it offers significant improvements in spectral efficiency compared to existing multi-antenna technologies.…

With the rise of intelligent applications, such as self-driving cars and augmented reality, the security and reliability of wireless communication systems have become increasingly crucial. One of the most critical components of ensuring a…

密码学与安全 · 计算机科学 2023-05-05 Ferhat Ozgur Catak , Umit Cali , Murat Kuzlu , Salih Sarp