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Channel state information (CSI) feedback is critical for achieving the promised advantages of enhancing spectral and energy efficiencies in massive multiple-input multiple-output (MIMO) wireless communication systems. Deep learning…

信息论 · 计算机科学 2024-03-29 Suhang Fan , Wei Xu , Renjie Xie , Shi Jin , Derrick Wing Kwan Ng , Naofal Al-Dhahir

Unlike the time-division duplexing (TDD) systems, the downlink (DL) and uplink (UL) channels are not reciprocal anymore in the case of frequency-division duplexing (FDD). However, some long-term parameters, e.g. the time delays and angles…

信息论 · 计算机科学 2017-08-02 Xiliang Luo , Penghao Cai , Xiaoyu Zhang , Die Hu , Cong Shen

Recent works on massive multiple-input multiple-output (MIMO) have shown that a potential breakthrough in capacity gains can be achieved by deploying a very large number of antennas at the basestation. In order to achieve the performance…

信息论 · 计算机科学 2016-11-15 Byungju Lee , Junil Choi , Ji-yun Seol , David J. Love , Byonghyo Shim

This paper proposes a novel approach for designing channel estimation, beamforming and scheduling jointly for wideband massive multiple input multiple output (MIMO) systems. With the proposed approach, we first quantify the maximum number…

信息论 · 计算机科学 2018-01-17 Tadilo Endeshaw Bogale , Long Bao Le , Xianbin Wang

In this paper, we propose a novel covariance information-assisted channel state information (CSI) feedback scheme for frequency-division duplex (FDD) massive multi-input multi-output (MIMO) systems. Unlike most existing CSI feedback…

信号处理 · 电气工程与系统科学 2024-12-18 Jialin Zhuang , Xuan He , Yafei Wang , Jiale Liu , Wenjin Wang

This paper addresses the critical challenges of communication overhead, data heterogeneity, and privacy in deep learning for channel state information (CSI) feedback in massive MIMO systems. To this end, we propose Fed-PELAD, a novel…

信息论 · 计算机科学 2025-10-30 Yixiang Zhou , Tong Wu , Meixia Tao , Jianhua Mo

To fully exploit the advantages of massive multiple-input multiple-output (m-MIMO), accurate channel state information (CSI) is required at the transmitter. However, excessive CSI feedback for large antenna arrays is inefficient and thus…

信息论 · 计算机科学 2021-05-24 Yuyao Sun , Wei Xu , Le Liang , Ning Wang , Geoffery Ye Li , Xiaohu You

In this paper, we propose a precoding framework for frequency division duplex (FDD) integrated sensing and communication (ISAC) systems with multiple-input multiple-output (MIMO). Specifically, we aim to maximize ergodic sum spectral…

信息论 · 计算机科学 2025-06-12 Namhyun Kim , Juntaek Han , Jinseok Choi , Ahmed Alkhateeb , Chan-Byoung Chae , Jeonghun Park

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

Accurate channel state information (CSI) feedback plays a vital role in improving the performance gain of massive multiple-input multiple-output (m-MIMO) systems, where the dilemma is excessive CSI overhead versus limited feedback bandwith.…

信号处理 · 电气工程与系统科学 2020-08-18 Yuyao Sun , Wei Xu , Lisheng Fan , Geoffrey Ye Li , George K. Karagiannidis

In this paper, we establish a general framework on the reduced dimensional channel state information (CSI) estimation and pre-beamformer design for frequency-selective massive multiple-input multiple-output MIMO systems employing…

信息论 · 计算机科学 2016-07-07 Gokhan M. Guvensen , Ender Ayanoglu

In this paper, we propose a feedback-efficient hybrid precoding framework for wideband millimeter-wave (mmWave) multiple-input multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) systems. To mitigate the high cost of…

信息论 · 计算机科学 2026-05-05 Po-Heng Chou , Jia-Qing Lin , Wan-Jen Huang , Ronald Y. Chang

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…

信息论 · 计算机科学 2015-07-07 Rami Mochaourab , Rasmus Brandt , Hadi Ghauch , Mats Bengtsson

Despite the success of large language models (LLMs) across domains, their potential for efficient channel state information (CSI) compression and feedback in frequency division duplex (FDD) massive multiple-input multiple-output (mMIMO)…

信息论 · 计算机科学 2026-03-05 Jie Wu , Wei Xu , Le Liang , Xiaohu You , Mérouane Debbah

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 need to support massive connectivity for the application of the Internet of things (IoT). The overhead of channel state information (CSI) acquisition becomes a bottleneck in the system…

信息论 · 计算机科学 2017-07-31 Ruichen Deng , Zhiyuan Jiang , Sheng Zhou , Zhisheng Niu

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)…

信号处理 · 电气工程与系统科学 2023-02-28 Guangyi Zhang , Qiyu Hu , Yunlong Cai , Guanding Yu

In this paper, we consider a multiuser MISO downlink cognitive network coexisting with a primary network. With the purpose of exploiting the spatial degree of freedom to counteract the inter-network interference and intra-network…

信息论 · 计算机科学 2013-10-17 Xiaoming Chen , Zhaoyang Zhang , Chau Yuen

Massive multiple-input multiple-output (MIMO) is a promising approach for cellular communication due to its energy efficiency and high achievable data rate. These advantages, however, can be realized only when channel state information…

信息论 · 计算机科学 2015-04-01 Min Soo Sim , Jeonghun Park , Chan-Byoung Chae , Robert W. Heath

This paper proposes a model-driven deep learning (MDDL)-based channel estimation and feedback scheme for wideband millimeter-wave (mmWave) massive hybrid multiple-input multiple-output (MIMO) systems, where the angle-delay domain channels'…

信息论 · 计算机科学 2022-01-20 Xisuo Ma , Zhen Gao , Feifei Gao , Marco Di Renzo