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Evaluating foundation models under appropriate adaptation settings is essential for understanding the quality and transferability of the learned representations. Recent EEG foundation models have demonstrated promising transfer capabilities…

机器学习 · 计算机科学 2026-05-28 Aditya Kommineni , Emily Zhou , Kleanthis Avramidis , Tiantian Feng , Shrikanth Narayanan

Accurate channel state information (CSI) underpins reliable and efficient wireless communication. However, acquiring CSI via pilot estimation incurs substantial overhead, especially in massive multiple-input multiple-output (MIMO) systems…

信息论 · 计算机科学 2025-12-05 Guangming Liang , Mingjie Yang , Dongzhu Liu , Paul Henderson , Lajos Hanzo

Deep learning based channel state information (CSI) feedback in frequency division duplex systems has drawn much attention in both academia and industry. In this paper, we focus on integrating the Type-II codebook in the beyond…

信息论 · 计算机科学 2023-06-01 Ke Ma , Yiliang Sang , Yang Ming , Jin Lian , Chang Tian , Zhaocheng Wang

To get channel state information (CSI) at a base station (BS), most of researches on massive multiple-input multiple-output (MIMO) systems consider time division duplexing (TDD) to get benefit from the uplink and downlink channel…

信息论 · 计算机科学 2022-06-28 Hyeongtaek Lee , Hyuckjin Choi , Hwanjin Kim , Sucheol Kim , Chulhee Jang , Yongyun Choi , Junil Choi

Reconfigurable intelligent surface (RIS) has received widespread attention owing to the superiority of changing the wireless propagation environment intelligently. Channel feedback is essential in frequency division duplex (FDD)…

信息论 · 计算机科学 2020-12-08 Decai Shen , Linglong Dai

The Channel Quality Indicator (CQI) is a fundamental component of channel state information (CSI) that enables adaptive modulation and coding by selecting the optimal modulation and coding scheme to meet a target block error rate. While…

信号处理 · 电气工程与系统科学 2025-12-23 Chengyong Jiang , Jiajia Guo , Yuqing Hua , Chao-Kai Wen , Shi Jin

This letter proposes a deep-learning (DL)-based multi-user channel state information (CSI) feedback framework for massive multiple-input multiple-output systems, where the deep joint source-channel coding (DJSCC) is utilized to improve the…

机器学习 · 计算机科学 2025-05-27 Hengwei Zhang , Minghui Wu , Li Qiao , Ling Liu , Ziqi Han , Zhen Gao

In a multiple-input multiple-output (MIMO) system, the availability of channel state information (CSI) at the transmitter is essential for performance improvement. Recent convolutional neural network (NN) based techniques show competitive…

信息论 · 计算机科学 2018-11-20 Chao Lu , Wei Xu , Hong Shen , Jun Zhu , Kezhi Wang

State-of-the-art schemes for performance analysis and optimization of multiple-input multiple-output systems generally experience degradation or even become invalid in dynamic complex scenarios with unknown interference and channel state…

信息论 · 计算机科学 2022-07-01 Fan Meng , Shengheng Liu , Yongming Huang , Zhaohua Lu

Recent advances in deep learning (DL) have significantly impacted motor imagery (MI)-based brain-computer interface (BCI) systems, enhancing the decoding of electroencephalography (EEG) signals. However, most studies struggle to identify…

机器学习 · 计算机科学 2024-09-09 Phairot Autthasan , Rattanaphon Chaisaen , Huy Phan , Maarten De Vos , Theerawit Wilaiprasitporn

In frequency division duplex (FDD) massive multiple-input multiple-output (mMIMO) systems, the reciprocity mismatch caused by receiver distortion seriously degrades the amplitude prediction performance of channel state information (CSI). To…

信息论 · 计算机科学 2023-09-01 Chaojin Qing , Zilong Wang , Qing Ye , Wenhui Liu , Linsi He

This paper presents a novel channel estimation technique for the multi-user massive multiple-input multiple-output (MU-mMIMO) systems using angular-based hybrid precoding (AB-HP). The proposed channel estimation technique generates…

信息论 · 计算机科学 2022-02-01 Xiaoyi Zhu , Asil Koc , Robert Morawski , Tho Le-Ngoc

Deep Unfolding Network-based methods have emerged as effective solutions for multi-source image fusion by combining model-driven iterative optimization with data-driven deep learning. However, most existing deep unfolding image fusion…

图像与视频处理 · 电气工程与系统科学 2026-05-04 Ge Luo , Jun-Jie Huang , Qi Yu , Tianrui Liu , Ke Liang , Yuming Xiang , Wentao Zhao , Xinwang Liu , Meng Wang

This paper is based on the background of the 2nd Wireless Communication Artificial Intelligence (AI) Competition (WAIC) which is hosted by IMT-2020(5G) Promotion Group 5G+AIWork Group, where the framework of the eigenvector-based channel…

信号处理 · 电气工程与系统科学 2022-06-17 Han Xiao , Zhiqin Wang , Dexin Li , Wenqiang Tian , Xiaofeng Liu , Wendong Liu , Shi Jin , Jia Shen , Zhi Zhang , Ning Yang

To meet the robust and high-speed communication requirements of the sixth-generation (6G) mobile communication system in complex scenarios, sensing- and artificial intelligence (AI)-based digital twin channel (DTC) techniques become a…

信号处理 · 电气工程与系统科学 2025-09-09 Yichen Cai , Jianhua Zhang , Li Yu , Zhen Zhang , Yuxiang Zhang , Lianzheng Shi , Yuelong Qiu , Yong Zeng

In the fifth-generation communication system (5G), multipath-assisted positioning (MAP) has emerged as a promising approach. With the enhancement of signal resolution, multipath component (MPC) are no longer regarded as noise but rather as…

信号处理 · 电气工程与系统科学 2025-06-05 Ye Tian , Xueting Xu , Ao Peng

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…

信号处理 · 电气工程与系统科学 2022-09-12 Zhen Gao , Minghui Wu , Chun Hu , Feifei Gao , Guanghui Wen , Dezhi Zheng , Jun Zhang

Knowledge of information about the propagation channel in which a wireless system operates enables better, more efficient approaches for signal transmissions. Therefore, channel state information (CSI) plays a pivotal role in the system…

信息论 · 计算机科学 2018-12-04 Zhiyuan Jiang , Sheng Chen , Andreas F. Molisch , Rath Vannithamby , Sheng Zhou , Zhisheng Niu

Transmitter channel state information (CSIT) is indispensable for the spectral efficiency gains offered by massive multiple-input multiple-output (MIMO) systems. In a frequency-division-duplexing (FDD) massive MIMO system, CSIT is typically…

信息论 · 计算机科学 2023-02-10 Deokhwan Han , Jeonghun Park , Namyoon Lee

Radio based positioning of a user equipment (UE) based on deep learning (DL) methods using channel state information (CSI) fingerprints have shown promising results. DL models are able to capture complex properties embedded in the CSI about…

信号处理 · 电气工程与系统科学 2022-10-27 Anastasios Foliadis , Mario H. Castañeda Garcia , Richard A. Stirling-Gallacher , Reiner S. Thomä