RF impairments in wireless transceivers: Phase noise, CFO, and IQ imbalance–A survey

A Mohammadian, C Tellambura - IEEE access, 2021 - ieeexplore.ieee.org
Wireless transceivers for mass-market applications must be cost effective. We may achieve
this goal by deploying non-ideal low-cost radio frequency (RF) analog components …

Transfer learning-based channel estimation in orthogonal frequency division multiplexing systems using data-nulling superimposed pilots

C Qing, L Dong, L Wang, G Ling, J Wang - Plos one, 2022 - journals.plos.org
Data-nulling superimposed pilot (DNSP) effectively alleviates the superimposed interference
of superimposed training (ST)-based channel estimation (CE) in orthogonal frequency …

Attention Guided Multi-Task Network for Joint CFO and Channel Estimation in OFDM Systems

Z Chen, Z Liu, X Geng, Y Zhao… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
The existence of high carrier frequency offset (CFO) and fading channels degrades the
performance of communication systems in high mobility environments significantly. To …

Low-complexity Precoding-aided CFO Estimation for ICA-based MIMO OFDM Systems in URLLC

Z Liu, Y Jiang, X Zhu, S Sun - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Carrier frequency offset (CFO) and channel equalization are two critical problems for
multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) …

[PDF][PDF] 基于神经网络的紫外光散射湍流信道估计方法

赵太飞, 吕鑫喆, 孙玉歆, 张爽 - Acta Optica Sinica, 2021 - researching.cn
摘要由于紫外光在传输过程中受到散射效应和大气湍流的影响, 非直视无线紫外光通信中存在
严重的码间串扰和传输衰减问题. 提出一种基于深度学习的无线紫外光散射信道估计方法 …

Likelihood ratio test-based blind carrier frequency offset estimation for coherent optical OFDM systems

Y Xu, X Du, C Yu - IEEE Communications Letters, 2023 - ieeexplore.ieee.org
This letter proposes two carrier frequency offset (CFO) estimators by utilizing the likelihood
ratio test (LRT) for coherent optical orthogonal frequency-division multiplexing (CO-OFDM) …

面向高速移动场景的OFDM 系统信道估计综述.

何世彪, 李雪, 杨植景, 廖勇 - Journal of Chongqing …, 2023 - search.ebscohost.com
近年来ꎬ 高速移动通信受到业界的广泛关注ꎬ 其中接收机侧的信道估计直接决定了系统的通信
质量ꎮ 正交频分复用(orthogonal frequency division multiplexingꎬOFDM) …

Asynchronous MIMO-OFDM Massive Unsourced Random Access with Codeword Collisions

T Li, Y Wu, J Gao, W Zhang, XG Xia, DWK Ng… - arXiv preprint arXiv …, 2024 - arxiv.org
This paper investigates asynchronous MIMO massive unsourced random access in an
orthogonal frequency division multiplexing (OFDM) system over frequency-selective fading …

Wireless ultraviolet scattering channel estimation method based on deep learning

T Zhao, X Lv, H Zhang, S Zhang - Optics express, 2021 - opg.optica.org
Due to the strong scattering characteristics, there are serious problems of inter-symbol
interference (ISI) and transmission attenuation in the none-line-of-sight (NLOS) wireless …

Carrier Frequency Offset and Channel Estimation for Passive Backscatter Communication Systems

Y Xu, R Xu, J Hu, M Milošević… - 2023 IEEE 9th World …, 2023 - ieeexplore.ieee.org
Backscatter communications, one key key technology for Internet of Things (IoT), attract
extensive attentions recently. In one typical backscatter communication system, there may …