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相关论文: On Deep Learning-based Massive MIMO Indoor User Lo…

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We present a novel view of nonlinear manifold learning using derivative-free optimization techniques. Specifically, we propose an extension of the classical multi-dimensional scaling (MDS) method, where instead of performing gradient…

Huge overhead of beam training imposes a significant challenge in millimeter-wave (mmWave) wireless communications. To address this issue, in this paper, we propose a wide beam based training approach to calibrate the narrow beam direction…

信号处理 · 电气工程与系统科学 2021-07-21 Ke Ma , Dongxuan He , Hancun Sun , Zhaocheng Wang , Sheng Chen

Optical wireless communication (OWC) is envisioned as a key enabler for immersive indoor data transmission in future wireless communication networks. However, multi-user interference management arises as a challenge in dense indoor OWC…

系统与控制 · 电气工程与系统科学 2025-04-24 Ahmed A. Hassan , Ahmad Adnan Qidan , Taisir Elgorashi , Jaafar Elmirghani

Bandwidth constraints limit LoRa implementations. Contemporary IoT applications require higher throughput than that provided by LoRa. This work introduces a LoRa Multiple Input Multiple Output (MIMO) system and a spatial multiplexing…

计算机与社会 · 计算机科学 2025-06-10 Atonu Ghosh , Sharath Chandan , Sudip Misra

In this paper, we devise a highly efficient machine learning-based channel estimation for orthogonal frequency division multiplexing (OFDM) systems, in which the training of the estimator is performed online. A simple learning module is…

信号处理 · 电气工程与系统科学 2021-07-15 Kai Mei , Jun Liu , Xiaoying Zhang , Kuo Cao , Nandana Rajatheva , Jibo Wei

LiDAR odometry is a fundamental task for various areas such as robotics, autonomous driving. This problem is difficult since it requires the systems to be highly robust running in noisy real-world data. Existing methods are mostly local…

计算机视觉与模式识别 · 计算机科学 2020-04-10 Zhichao Li , Naiyan Wang

In frequency-division duplex (FDD) massive multiple-input multiple-output (MIMO) systems, the growing number of base station antennas leads to prohibitive feedback overhead for downlink channel state information (CSI). To address this…

信号处理 · 电气工程与系统科学 2024-06-25 Yifan Ma , Hengtao He , Shenghui Song , Jun Zhang , Khaled B. Letaief

The great success of deep learning (DL) has inspired researchers to develop more accurate and efficient symbol detectors for multi-input multi-output (MIMO) systems. Existing DL-based MIMO detectors, however, suffer several drawbacks. To…

信息论 · 计算机科学 2022-01-12 Qian Wan , Jun Fang , Yinsen Huang , Huiping Duan , Hongbin Li

Mobile users are prone to experience beam failure due to beam drifting in millimeter wave (mmWave) communications. Sensing can help alleviate beam drifting with timely beam changes and low overhead since it does not need user feedback. This…

信号处理 · 电气工程与系统科学 2025-05-12 Xiyu Wang , Gilberto Berardinelli , Hei Victor Cheng , Petar Popovski , Ramoni Adeogun

A novel precoding method based on supervised deep neural networks is introduced for the multiple-input multiple-output Gaussian wiretap channel. The proposed deep learning (DL)-based precoding learns the input covariance matrix through…

信息论 · 计算机科学 2019-09-18 Xinliang Zhang , Mojtaba Vaezi

To implement autonomous driving, one essential step is to model the vehicle environment based on the sensor inputs. Radars, with their well-known advantages, became a popular option to infer the occupancy state of grid cells surrounding the…

计算机视觉与模式识别 · 计算机科学 2024-10-22 Zihang Wei , Rujiao Yan , Matthias Schreier

Orthogonal Frequency Division Multiplexing (OFDM)-based waveforms are used for communication links in many current and emerging Internet of Things (IoT) applications, including the latest WiFi standards. For such OFDM-based transceivers,…

To reduce channel acquisition overhead, spatial, time, and frequency-domain channel extrapolation techniques have been widely studied. In this paper, we propose a novel deep learning-based Position-domain Channel Extrapolation framework…

信息论 · 计算机科学 2025-07-25 Jiajia Guo , Chao-Kai Wen , Xiao Li , Shi Jin

Cell-free massive multiple-input multiple-output (mMIMO) networks enhance coverage and spectral efficiency (SE) by distributing antennas across access points (APs) with phase coherence between APs. However, the use of cost-efficient local…

信号处理 · 电气工程与系统科学 2025-06-26 Yibo Wu , Luca Sanguinetti , Musa Furkan Keskin , Ulf Gustavsson , Alexandre Graell i Amat , Henk Wymeersch

The demand for executing Deep Neural Networks (DNNs) with low latency and minimal power consumption at the edge has led to the development of advanced heterogeneous Systems-on-Chips (SoCs) that incorporate multiple specialized computing…

机器学习 · 计算机科学 2025-02-24 Matteo Risso , Alessio Burrello , Daniele Jahier Pagliari

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

This letter considers the wavenumber-division-multiplexing (WDM) scheme that was recently proposed in [1] for line-of-sight communications between parallel (side-by-side) spatially-continuous electromagnetic segments. Our aim is to analyze…

信息论 · 计算机科学 2022-06-22 Antonio Alberto D'Amico , Luca Sanguinetti , Merouane Debbah

We consider a multi-user multiple-input multiple-output (MU-MIMO) system that uses orthogonal frequency division multiplexing (OFDM). Several receivers are developed for data detection of MU-MIMO transmissions where two users share the same…

The use of up to hundreds of antennas in massive multi-user (MU) multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) poses a complexity challenge for digital predistortion (DPD) aiming to linearize the…

信号处理 · 电气工程与系统科学 2024-10-25 Yibo Wu , Ulf Gustavsson , Mikko Valkama , Alexandre Graell i Amat , Henk Wymeersch

In this paper, we consider a multiuser massive single-input multiple-output (SIMO) enabled Industrial Internet of Things (IIoT) communication system. To reduce the latency and overhead caused by channel estimation, we assume that only the…

信息论 · 计算机科学 2019-03-06 Zheng Dong , He Chen , Jian-Kang Zhang , Branka Vucetic
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