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相关论文: A CSI Feedback Framework based on Transmitting the…

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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

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…

人工智能 · 计算机科学 2023-12-12 Zhilin Du , Haozhen Li , Zhenyu Liu , Shilong Fan , Xinyu Gu , Lin Zhang

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 massive multiple-input multiple-output (MIMO) system, user equipment (UE) needs to send downlink channel state information (CSI) back to base station (BS). However, the feedback becomes expensive with the growing complexity of CSI in…

信息论 · 计算机科学 2021-05-28 Zhilin Lu , Jintao Wang , Jian Song

Deep learning (DL)-based channel state information (CSI) feedback has shown promising potential to improve spectrum efficiency in massive MIMO systems. However, practical DL approaches require a sizeable CSI dataset for each scenario, and…

信息论 · 计算机科学 2023-11-07 Zhenyu Liu , Li Wang , Lianming Xu , Zhi Ding

In frequency division duplex (FDD) systems, acquiring channel state information (CSI) at the base station (BS) traditionally relies on limited feedback from mobile terminals (MTs). However, the accuracy of channel reconstruction from…

信息论 · 计算机科学 2025-03-10 Yunseo Nam , Jiwook Choi

In frequency division duplex mode of massive multiple-input multiple-output systems, the downlink channel state information (CSI) must be sent to the base station (BS) through a feedback link. However, transmitting CSI to the BS is costly…

信息论 · 计算机科学 2020-05-04 Zheng Cao , Wan-Ting Shih , Jiajia Guo , Chao-Kai Wen , Shi Jin

In Wi-Fi systems, channel state information (CSI) plays a crucial role in enabling access points to execute beamforming operations. However, the feedback overhead associated with CSI significantly hampers the throughput improvements. Recent…

信号处理 · 电气工程与系统科学 2024-07-09 Fan Qi , Jiajia Guo , Yiming Cui , Xiangyi Li , Chao-Kai Wen , Shi Jin

In multiple-input multiple-output (MIMO) systems, the high-resolution channel information (CSI) is required at the base station (BS) to ensure optimal performance, especially in the case of multi-user MIMO (MU-MIMO) systems. In the absence…

信息论 · 计算机科学 2022-02-04 Pranav Madadi , Jeongho Jeon , Joonyoung Cho , Caleb Lo , Juho Lee , Jianzhong Zhang

Deep learning (DL) based channel state information (CSI) feedback in multiple-input multiple-output (MIMO) systems recently has attracted lots of attention from both academia and industrial. From a practical point of views, it is huge…

信号处理 · 电气工程与系统科学 2022-10-19 Liqiang Jin , Qiuping Huang , Qiubin Gao , Yongqiang Fei , Shaohui Sun

Forward channel state information (CSI) often plays a vital role in scheduling and capacity-approaching transmission optimization for massive multiple-input multiple-output (MIMO) communication systems. In frequency division duplex (FDD)…

信号处理 · 电气工程与系统科学 2020-09-22 Zhenyu Liu , Mason del Rosario , Zhi Ding

Channel state information (CSI) feedback is critical for frequency division duplex (FDD) massive multi-input multi-output (MIMO) systems. Most conventional algorithms are based on compressive sensing (CS) and are highly dependent on the…

信号处理 · 电气工程与系统科学 2020-04-17 Hongyuan Ye , Feifei Gao , Jing Qian , Hao Wang , Geoffrey Ye Li

Channel state information (CSI) reporting is important for multiple-input multiple-output (MIMO) transmitters to achieve high capacity and energy efficiency in frequency division duplex (FDD) mode. CSI reporting for massive MIMO systems…

信息论 · 计算机科学 2019-12-24 Zhenyu Liu , Lin Zhang , Zhi Ding

Accurate downlink channel state information (CSI) is vital to achieving high spectrum efficiency in massive MIMO systems. Existing works on the deep learning (DL) model for CSI feedback have shown efficient compression and recovery in…

信息论 · 计算机科学 2022-05-10 Zhenyu Liu , Zhi Ding

Deep learning has emerged as a promising solution for efficient channel state information (CSI) feedback in frequency division duplex (FDD) massive MIMO systems. Conventional deep learning-based methods typically rely on a deep autoencoder…

信号处理 · 电气工程与系统科学 2025-07-29 Haotian Tian , Lixiang Lian , Jiaqi Cao , Sijie Ji

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

Deep learning (DL)-based channel state information (CSI) feedback improves the capacity and energy efficiency of massive multiple-input multiple-output (MIMO) systems in frequency division duplexing mode. However, multiple neural networks…

信息论 · 计算机科学 2022-03-01 Xin Liang , Haoran Chang , Haozhen Li , Xinyu Gu , Lin Zhang

In frequency division duplex mode, the downlink channel state information (CSI) should be sent to the base station through feedback links so that the potential gains of a massive multiple-input multiple-output can be exhibited. However,…

信息论 · 计算机科学 2018-04-24 Chao-Kai Wen , Wan-Ting Shih , Shi Jin

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

Massive multiple-input multiple-output (MIMO) systems rely on channel state information (CSI) feedback to perform precoding and achieve performance gain in frequency division duplex (FDD) networks. However, the huge number of antennas poses…

信息论 · 计算机科学 2018-08-01 Tianqi Wang , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li
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