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相关论文: Neural Precoding in Complex Projective Spaces

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Deep learning (DL) methods are widely used to extract high-dimensional patterns from the sequence features of radar echo signals. However, conventional DL algorithms face challenges such as redundant feature segments, and constraints from…

信号处理 · 电气工程与系统科学 2025-09-16 Qiying Hu , Linping Zhang , Xueqian Wang , Gang Li , Yu Liu , Xiao-Ping Zhang

Nonlinear precoding and pulse shaping are jointly considered in multi-user massive multiple-input multiple-output (MIMO) systems with low-resolution D/A-converters (DACs) in terms of algorithmic approach as well as large system performance.…

信息论 · 计算机科学 2021-06-29 Amine Mezghani , Robert W. Heath

In this paper, we consider massive multiple-input-multiple-output (MIMO) communication systems with a uniform planar array (UPA) at the base station (BS) and investigate the downlink precoding with imperfect channel state information (CSI).…

信息论 · 计算机科学 2020-05-28 Junchao Shi , Wenjin Wang , Xinping Yi , Xiqi Gao , Geoffrey Ye Li

Current mainstream of CT reconstruction methods based on deep learning usually needs to fix the scanning geometry and dose level, which will significantly aggravate the training cost and need more training data for clinical application. In…

医学物理 · 物理学 2020-10-28 Wenjun Xia , Zexin Lu , Yongqiang Huang , Yan Liu , Hu Chen , Jiliu Zhou , Yi Zhang

Although symbol-level precoding (SLP) based on constructive interference (CI) exploitation offers performance gains, its high complexity remains a bottleneck. This paper addresses this challenge with an end-to-end deep learning (DL)…

信号处理 · 电气工程与系统科学 2025-10-03 Jinshuo Zhang , Yafei Wang , Xinping Yi , Wenjin Wang , Shi Jin , Symeon Chatzinotas , Björn Ottersten

Deep learning (DL)-based channel state information (CSI) feedback has shown great potential in improving spectrum efficiency in massive MIMO systems. However, DL models optimized for specific environments often experience performance…

信息论 · 计算机科学 2024-10-11 Zhenyu Liu , Yi Ma , Rahim Tafazolli

In this paper, we introduce a deep multiple description coding (MDC) framework optimized by minimizing multiple description (MD) compressive loss. First, MD multi-scale-dilated encoder network generates multiple description tensors, which…

计算机视觉与模式识别 · 计算机科学 2020-01-14 Lijun Zhao , Huihui Bai , Anhong Wang , Yao Zhao

In this paper, we propose a deep multiple description coding framework, whose quantizers are adaptively learned via the minimization of multiple description compressive loss. Firstly, our framework is built upon auto-encoder networks, which…

多媒体 · 计算机科学 2019-02-07 Lijun Zhao , Huihui Bai , Anhong Wang , Yao Zhao

Massive multiple-input multiple-output (MIMO) systems require downlink channel state information (CSI) at the base station (BS) to achieve spatial diversity and multiplexing gains. In a frequency division duplex (FDD) multiuser massive MIMO…

信号处理 · 电气工程与系统科学 2020-09-09 Mahdi Boloursaz Mashhadi , Qianqian Yang , Deniz Gunduz

Deep neural networks (DNNs) have been quite successful in solving many complex learning problems. However, DNNs tend to have a large number of learning parameters, leading to a large memory and computation requirement. In this paper, we…

机器学习 · 计算机科学 2019-05-21 Sangkyun Lee , Jeonghyun Lee

During the past decade, deep neural networks have led to fast-paced progress and significant achievements in computer vision problems, for both academia and industry. Yet despite their success, state-of-the-art image classification…

计算机视觉与模式识别 · 计算机科学 2024-05-13 Aristotelis Ballas , Christos Diou

This paper addresses the challenges of designing mesh convolution neural networks for 3D mesh dense prediction. While deep learning has achieved remarkable success in image dense prediction tasks, directly applying or extending these…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Shi Hezi , Jiang Luo , Zheng Jianmin , Zeng Jun

Millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems typically employ hybrid mixed signal processing to avoid expensive hardware and high training overheads. {However, the lack of fully digital beamforming at…

信息论 · 计算机科学 2021-02-23 Asmaa Abdallah , Abdulkadir Celik , Mohammad M. Mansour , Ahmed M. Eltawil

To guarantee excellent reliability performance in ultra-reliable low-latency communications (URLLC), pragmatic precoder design is an effective approach. However, an efficient precoder design highly depends on the accurate instantaneous…

信息论 · 计算机科学 2023-04-24 Chang Liu , Shuangyang Li , Weijie Yuan , Xuemeng Liu , Derrick Wing Kwan Ng

In next-generation communications, massive machine-type communications (mMTC) induce severe burden on base stations. To address such an issue, automatic modulation classification (AMC) can help to reduce signaling overhead by blindly…

信号处理 · 电气工程与系统科学 2020-02-10 Chieh-Fang Teng , Ching-Yao Chou , Chun-Hsiang Chen , An-Yeu Wu

Base station (BS) architectures for massive multi-user (MU) multiple-input multiple-output (MIMO) wireless systems are equipped with hundreds of antennas to serve tens of users on the same time-frequency channel. The immense number of BS…

Deep neural networks, in particular convolutional neural networks, have become highly effective tools for compressing images and solving inverse problems including denoising, inpainting, and reconstruction from few and noisy measurements.…

计算机视觉与模式识别 · 计算机科学 2019-03-12 Reinhard Heckel , Paul Hand

Massive multiple-input multiple-output (mMIMO) downlink precoding offers high spectral efficiency but remains challenging to deploy in practice because near-optimal algorithms such as the weighted minimum mean squared error (WMMSE) are…

机器学习 · 计算机科学 2026-01-30 Ali Hasanzadeh Karkan , Ahmed Ibrahim , Jean-François Frigon , François Leduc-Primeau

Deep convolutional neural networks have been proven successful in multiple benchmark challenges in recent years. However, the performance improvements are heavily reliant on increasingly complex network architecture and a high number of…

计算机视觉与模式识别 · 计算机科学 2021-02-01 Guoqing Bao , Manuel B. Graeber , Xiuying Wang

In recent years, deep learning (DL) has emerged as a promising alternative approach for various seismic processing tasks, including primary estimation (or multiple elimination), a crucial step for accurate subsurface imaging. In geophysics,…

地球物理 · 物理学 2025-02-11 Jing Sun , Tiexing Wang , Eric Verschuur , Ivan Vasconcelos