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Channel state information (CSI) is a fundamental component in both wireless communication and sensing systems, enabling critical functions such as radio resource optimization and environmental perception. In wireless sensing, data scarcity…

Machine Learning · Computer Science 2025-12-09 Zijian Zhao , Fanyi Meng , Zhonghao Lyu , Hang Li , Xiaoyang Li , Guangxu Zhu

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…

Audio and Speech Processing · Electrical Eng. & Systems 2018-10-17 Zhong Meng , Shinji Watanabe , John R. Hershey , Hakan Erdogan

In this paper, we propose a data-driven deep learning (DL) approach to jointly design the pilot signals and channel estimator for wideband massive multiple-input multiple-output (MIMO) systems. By exploiting the angular-domain…

Information Theory · Computer Science 2020-03-13 Xisuo Ma , Zhen Gao

This study proposes a deep learning model based on the combination of convolutional neural network (CNN) and bidirectional long short-term memory network (BiLSTM) for discriminant analysis of financial systemic risk. The model first uses…

Machine Learning · Computer Science 2025-02-12 Yu Cheng , Zhen Xu , Yuan Chen , Yuhan Wang , Zhenghao Lin , Jinsong Liu

For frequency division duplex systems, the essential downlink channel state information (CSI) feedback includes the links of compression, feedback, decompression and reconstruction to reduce the feedback overhead. One efficient CSI feedback…

Signal Processing · Electrical Eng. & Systems 2023-06-06 Xiangyi Li , Jiajia Guo , Chao-Kai Wen , Shi Jin , Shuangfeng Han , Xiaoyun Wang

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

The latest TypeII codebook selects partial strongest angular-delay ports for the feedback of downlink channel state information (CSI), whereas its performance is limited due to the deficiency of utilizing the correlations among the port…

Signal Processing · Electrical Eng. & Systems 2024-05-22 Yiliang Sang , Ke Ma , Yang Ming , Jin Lian , Zhaocheng Wang

Short-term traffic forecasting based on deep learning methods, especially long short-term memory (LSTM) neural networks, has received much attention in recent years. However, the potential of deep learning methods in traffic forecasting has…

Machine Learning · Computer Science 2019-11-26 Zhiyong Cui , Ruimin Ke , Ziyuan Pu , Yinhai Wang

Deep learning has revolutionized the design of the channel state information (CSI) feedback module in wireless communications. However, designing the optimal neural network (NN) architecture for CSI feedback can be a laborious and…

Information Theory · Computer Science 2023-11-28 Xiangyi Li , Jiajia Guo , Chao-Kai Wen , Shi Jin

Deep neural networks have recently been shown to achieve highly competitive performance in many computer vision tasks due to their abilities of exploring in a much larger hypothesis space. However, since most deep architectures like stacked…

Computation and Language · Computer Science 2018-02-06 Zixiang Ding , Rui Xia , Jianfei Yu , Xiang Li , Jian Yang

Recently, deep learning-enabled joint-source channel coding (JSCC) has received increasing attention due to its great success in image transmission. However, most existing JSCC studies only focus on single-input single-output (SISO)…

Signal Processing · Electrical Eng. & Systems 2023-02-28 Guangyi Zhang , Qiyu Hu , Yunlong Cai , Guanding Yu

Wireless links using massive MIMO transceivers are vital for next generation wireless communications networks networks. Precoding in Massive MIMO transmission requires accurate downlink channel state information (CSI). Many recent works…

Information Theory · Computer Science 2022-01-17 Mason del Rosario , Zhi Ding

The recent advances in machine learning and deep neural networks have made them attractive candidates for wireless communications functions such as channel estimation, decoding, and downlink channel state information (CSI) compression.…

Networking and Internet Architecture · Computer Science 2023-11-15 Omar Erak , Hatem Abou-Zeid

Orthogonal delay-Doppler division multiplexing~(ODDM) modulation has recently been regarded as a promising technology to provide reliable communications in high-mobility situations. Accurate and low-complexity channel estimation is one of…

Signal Processing · Electrical Eng. & Systems 2025-07-29 Dezhi Wang , Chongwen Huang , Xiaojun Yuan , Sami Muhaidat , Lei Liu , Xiaoming Chen , Zhaoyang Zhang , Chau Yuen , Mérouane Debbah

The advent of deep learning (DL)-based models has significantly advanced Channel State Information (CSI) feedback mechanisms in wireless communication systems. However, traditional approaches often suffer from high communication overhead…

Artificial Intelligence · Computer Science 2023-12-12 Zhilin Du , Haozhen Li , Zhenyu Liu , Shilong Fan , Xinyu Gu , Lin Zhang

Artificial intelligence (AI) based downlink channel state information (CSI) prediction for frequency division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems has attracted growing attention recently. However, existing…

Information Theory · Computer Science 2020-09-08 Yuwen Yang , Feifei Gao , Zhimeng Zhong , Bo Ai , Ahmed Alkhateeb

Channel state information (CSI) prediction is a promising strategy for ensuring reliable and efficient operation of massive multiple-input multiple-output (mMIMO) systems by providing timely downlink (DL) CSI. While deep learning-based…

In frequency division duplexing systems, the base station (BS) acquires downlink channel state information (CSI) via channel feedback, which has not been adequately investigated in the presence of RIS. In this study, we examine the limited…

Information Theory · Computer Science 2024-10-30 Weicong Chen , Chao-Kai Wen , Xiao Li , Shi Jin

Accurate and low-overhead channel state information (CSI) feedback is essential to boost the capacity of frequency division duplex (FDD) massive multiple-input multiple-output (MIMO) systems. Deep learning-based CSI feedback significantly…

Signal Processing · Electrical Eng. & Systems 2025-07-10 Haoyu Wang , Shuangfeng Han , Xiaoyun Wang , Zhi Sun

With the large number of antennas and subcarriers the overhead due to pilot transmission for channel estimation can be prohibitive in wideband massive multiple-input multiple-output (MIMO) systems. This can degrade the overall spectral…

Information Theory · Computer Science 2021-04-14 Mahdi Boloursaz Mashhadi , Deniz Gunduz