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The performance of modern wireless communications systems depends critically on the quality of the available channel state information (CSI) at the transmitter and receiver. Several previous works have proposed concepts and algorithms that…

Machine Learning · Computer Science 2023-08-29 Oscar Stenhammar , Gabor Fodor , Carlo Fischione

Recent works have demonstrated that attention-based transformer and large language model (LLM) architectures can achieve strong channel state prediction (CSP) performance by capturing long-range temporal dependencies across channel state…

Information Theory · Computer Science 2026-04-27 Aladin Djuhera , Haris Gacanin , Holger Boche

Deep generative models offer a powerful alternative to conventional channel estimation by learning complex channel distributions. By integrating the rich environmental information available in modern sensing-aided networks, this paper…

Machine Learning · Computer Science 2026-03-17 Xiaotian Fan , Xingyu Zhou , Le Liang , Xiao Li , Shi Jin

Accurate prediction of the remaining useful life (RUL) of industrial machinery is essential for reducing downtime and optimizing maintenance schedules. Existing approaches, such as long short-term memory (LSTM) networks and convolutional…

Machine Learning · Computer Science 2025-11-04 Varun Teja Chirukiri , Udaya Bhasker Cheerala , Sandeep Kanta , Abdul Karim , Praveen Damacharla

Efficient channel state information (CSI) compression at the user equipment plays a key role in enabling accurate channel reconstruction and precoder design in massive multiple-input multiple-output systems. A key challenge lies in…

Information Theory · Computer Science 2026-02-04 Xi Chen , Homa Esfahanizadeh , Foad Sohrabi

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…

Signal Processing · Electrical Eng. & Systems 2022-04-28 Xiangyi Li , Huaming Wu

We consider a MIMO interference channel in which the transmitters and receivers operate in frequency-division duplex mode. In this setting, interference management through coordinated transceiver design necessitates channel state…

Information Theory · Computer Science 2015-07-07 Rami Mochaourab , Rasmus Brandt , Hadi Ghauch , Mats Bengtsson

A centralized coordinated multipoint downlink joint transmission in a frequency division duplex system requires channel state information (CSI) to be fed back from the cell-edge users to their serving BS, and aggregated at the central…

Information Theory · Computer Science 2015-03-27 T. R. Lakshmana , A. Tölli , R. Devassy , T. Svensson

Motivated by the issue of inaccurate channel state information (CSI) at the base station (BS), which is commonly due to feedback/processing delays and compression problems, in this paper, we introduce a scalable idea of adopting artificial…

Signal Processing · Electrical Eng. & Systems 2021-04-02 Muhammad Karam Shehzad , Luca Rose , Mohamad Assaad

Obtaining accurate channel state information (CSI) is crucial and challenging for multiple-input multiple-output (MIMO) wireless communication systems. With the increasing antenna scale and user mobility, traditional channel estimation…

Signal Processing · Electrical Eng. & Systems 2025-04-29 Zhuoran Xiao

In massive multiple-input multiple-output (MIMO) system, channel state information (CSI) is essential for the base station to achieve high performance gain. Recently, deep learning is widely used in CSI compression to fight against the…

Information Theory · Computer Science 2020-11-06 Zhilin Lu , Jintao Wang , Jian Song

Accurate channel state information (CSI) prediction is essential for improving the reliability and spectral efficiency of massive MIMO-OFDM systems in high-mobility scenarios. Existing deep learning methods struggle to jointly capture…

Signal Processing · Electrical Eng. & Systems 2026-05-14 Nanqing Jiang , Zhangyao Song , Tao Guo , Xiaoyu Zhao , Yinfei Xu

Hybrid beamforming is a promising technology for 5G millimetre-wave communications. However, its implementation is challenging in practical multiple-input multiple-output (MIMO) systems because non-convex optimization problems have to be…

Signal Processing · Electrical Eng. & Systems 2021-07-09 Hamed Hojatian , Vu Nguyen Ha , Jérémy Nadal , Jean-François Frigon , François Leduc-Primeau

Due to the ability of feature extraction, deep learning (DL)-based methods have been recently applied to channel state information (CSI) compression feedback in massive multiple-input multiple-output (MIMO) systems. Existing DL-based CSI…

Information Theory · Computer Science 2023-06-13 Shaoqing Zhang , Wei Xu , Shi Jin , Xiaohu You , Derrick Wing Kwan Ng , Li-Chun Wang

Future wireless systems are expected to employ a substantially larger number of transmit ports for channel state information (CSI) estimation compared to current specifications. Although scaling ports improves spectral efficiency, it also…

Signal Processing · Electrical Eng. & Systems 2026-01-26 Advaith Arun , Shiv Shankar , Dhivagar Baskaran , Klutto Milleth , Bhaskar Ramamurthi

The construction cost index is an important indicator of the construction industry. Predicting CCI has important practical significance. This paper combines information fusion with machine learning, and proposes a multi-feature fusion (MFF)…

Machine Learning · Computer Science 2022-03-01 Tianxiang Zhan , Yuanpeng He , Fuyuan Xiao

The literature is abundant with methodologies focusing on using transformer architectures due to their prominence in wireless signal processing and their capability to capture long-range dependencies via attention mechanisms. In particular,…

Information Theory · Computer Science 2025-04-17 Cemil Vahapoglu , Timothy J. O'Shea , Wan Liu , Tamoghna Roy , Sennur Ulukus

Reducing feedback overhead in beyond 5G networks is a critical challenge, as the growing number of antennas in modern massive MIMO systems substantially increases the channel state information (CSI) feedback demand in frequency division…

Systems and Control · Electrical Eng. & Systems 2026-02-24 Sehyun Ryu , Hyun Jong Yang

Modern techniques in the Internet of Things or autonomous driving require more accuracy positioning ever. Classic location techniques mainly adapt to outdoor scenarios, while they do not meet the requirement of indoor cases with multiple…

Signal Processing · Electrical Eng. & Systems 2020-02-05 Jianyuan Yu , R. Michael Buehrer

In order to achieve reliable communication with a high data rate of massive multiple-input multiple-output (MIMO) systems in frequency division duplex (FDD) mode, the estimated channel state information (CSI) at the receiver needs to be fed…

Information Theory · Computer Science 2021-12-14 J. Guo , L. Wang , F. Li , J. Xue