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相关论文: Deep Learning Based Antenna Selection for Channel …

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This letter mainly studies the transmit antenna selection(TAS) based on deep learning (DL) scheme in untrusted relay networks. In previous work, we discover that machine learning (ML)-based antenna selection schemes have small performance…

信号处理 · 电气工程与系统科学 2019-01-11 Rugui Yao , Yuxin Zhang , Shengyao Wang , Nan Qi , Theodoros A. Tsiftsis , Nikos I. Miridakis

Channel estimation is one of the key issues in practical massive multiple-input multiple-output (MIMO) systems. Compared with conventional estimation algorithms, deep learning (DL) based ones have exhibited great potential in terms of…

信息论 · 计算机科学 2021-08-24 Jiabao Gao , Mu Hu , Caijun Zhong , Geoffrey Ye Li , Zhaoyang Zhang

This paper proposes a deep learning-based channel estimation method for multi-cell interference-limited massive MIMO systems, in which base stations equipped with a large number of antennas serve multiple single-antenna users. The proposed…

信号处理 · 电气工程与系统科学 2019-08-02 Eren Balevi , Akash Doshi , Jeffrey G. Andrews

This paper considers uplink massive MIMO systems with 1-bit analog-to-digital converters (ADCs) and develops a deep-learning based channel estimation framework. In this framework, the prior channel estimation observations and deep neural…

信息论 · 计算机科学 2020-05-11 Yu Zhang , Muhammad Alrabeiah , Ahmed Alkhateeb

Hybrid analog and digital beamforming transceivers are instrumental in addressing the challenge of expensive hardware and high training overheads in the next generation millimeter-wave (mm-Wave) massive MIMO (multiple-input multiple-output)…

信号处理 · 电气工程与系统科学 2022-01-04 Ahmet M. Elbir , Kumar Vijay Mishra , M. R. Bhavani Shankar , Björn Ottersten

Massive multiple-input multiple-output (MIMO) systems are a main enabler of the excessive throughput requirements in 5G and future generation wireless networks as they can serve many users simultaneously with high spectral and energy…

信息论 · 计算机科学 2021-02-15 Mahdi Boloursaz Mashhadi , Deniz Gündüz

Antenna selection in Massive MIMO (Multiple Input Multiple Output) communication systems enables reduction of complexity, cost and power while keeping the channel capacity high and retaining the diversity, interference reduction, spatial…

信息论 · 计算机科学 2018-05-15 Harun Siljak , Irene Macaluso , Nicola Marchetti

One of the fundamental challenges to realize massive Multiple-Input Multiple-Output (MIMO) communications is the accurate acquisition of channel state information for a plurality of users at the base station. This is usually accomplished in…

信息论 · 计算机科学 2019-05-14 Chongwen Huang , George C. Alexandropoulos , Alessio Zappone , Chau Yuen , Mérouane Debbah

In millimeter-wave communications, multiple-input-multiple-output (MIMO) systems use large antenna arrays to achieve high gain and spectral efficiency. These massive MIMO systems employ hybrid beamformers to reduce power consumption…

信号处理 · 电气工程与系统科学 2019-11-26 Ahmet M. Elbir , Kumar Vijay Mishra

The development of learning-based detectors for massive multi-input multi-output (MIMO) systems has been hindered by the inherent complexities arising from the problem's high dimensionality. To enhance scalability, most previous studies…

信息论 · 计算机科学 2025-07-30 Hao Ye , Le Liang

This paper proposes and analyzes novel deep learning methods for downlink (DL) single-user multiple-input multiple-output (SU-MIMO) and multi-user MIMO (MU-MIMO) systems operating in time division duplex (TDD) mode. A motivating application…

信息论 · 计算机科学 2024-02-05 Juseong Park , Foad Sohrabi , Amitava Ghosh , Jeffrey G. Andrews

In frequency division duplex (FDD) massive MIMO systems, a major challenge lies in acquiring the downlink channel state information}\ (CSI) at the base station (BS) from limited feedback sent by the user equipment (UE). To tackle this…

信号处理 · 电气工程与系统科学 2025-09-11 Rajesh Shrestha , Mingjie Shao , Mingyi Hong , Wing-Kin Ma , Xiao Fu

Future wireless multiple-input multiple-output (MIMO) systems will integrate both sub-6 GHz and millimeter wave (mmWave) frequency bands to meet the growing demands for high data rates. MIMO link establishment typically requires accurate…

信号处理 · 电气工程与系统科学 2025-10-16 Faruk Pasic , Lukas Eller , Stefan Schwarz , Markus Rupp , Christoph F. Mecklenbräuker

In time division duplexing (TDD) millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems, downlink channel state information (CSI) can be obtained from uplink channel estimation thanks to channel reciprocity. However,…

信号处理 · 电气工程与系统科学 2025-01-13 Binggui Zhou , Xi Yang , Shaodan Ma , Feifei Gao , Guanghua Yang

In this paper, an efficient massive multiple-input multiple-output (MIMO) detector is proposed by employing a deep neural network (DNN). Specifically, we first unfold an existing iterative detection algorithm into the DNN structure, such…

信号处理 · 电气工程与系统科学 2020-04-16 Jieyu Liao , Junhui Zhao , Feifei Gao , Geoffrey Ye Li

Millimeter wave (mmWave) multiple-input-multi-output (MIMO) is now a reality with great potential for further improvement. We study full-duplex transmissions as an effective way to improve mmWave MIMO systems. Compared to half-duplex…

信息论 · 计算机科学 2025-01-31 Mehdi Sattari , Hao Guo , Deniz Gündüz , Ashkan Panahi , Tommy Svensson

As a promising technique to meet the drastically growing demand for both high throughput and uniform coverage in the fifth generation (5G) wireless networks, massive multiple-input multiple-output (MIMO) systems have attracted significant…

信息论 · 计算机科学 2016-11-17 Changming Li , Jun Zhang , Shenghui Song , K. B. Letaief

In this work, we propose a convolutional neural network (CNN) based low-complexity approach for downlink (DL) channel estimation (CE) in frequency division duplex (FDD) systems. In contrast to existing work, we use training data which…

信息论 · 计算机科学 2021-05-26 B. Fesl , N. Turan , M. Koller , M. Joham , W. Utschick

This paper focuses on the use of a deep learning approach to perform sum-rate-max and max-min power allocation in the uplink of a cell-free massive MIMO network. In particular, we train a deep neural network in order to learn the mapping…

信息论 · 计算机科学 2019-08-30 Carmen D'Andrea , Alessio Zappone , Stefano Buzzi , Merouane Debbah

We consider the problem of pilot-aided, uplink channel estimation in a distributed massive multiple-input multiple-output (MIMO) architecture, in which the access points are connected to a central processing unit via fiber-optical fronthaul…

信号处理 · 电气工程与系统科学 2024-07-08 Alireza Bordbar , Lise Aabel , Christian Häger , Christian Fager , Giuseppe Durisi