Deep Learning-Assisted Channel Estimation in Frequency Selective UWA Communication Systems

DK Phan, T Van Chien - IEEE Access, 2023 - ieeexplore.ieee.org
Envisioned future wireless gives rise to the possibility of exploiting underwater applications
with high spectral efficiency and reliable communication. This paper presents a method to …

Neural-Network-Based Equalization and Detection for Underwater Acoustic Orthogonal Frequency Division Multiplexing Communications: A Low-Complexity …

M Zhou, J Wang, X Feng, H Sun, J Qi, R Lin - Remote Sensing, 2023 - mdpi.com
The performance of the underwater acoustic (UWA) orthogonal frequency division
multiplexing (OFDM) system is often restrained by time-varying channels with large delays …

Model-driven based deep unfolding equalizer for underwater acoustic OFDM communications

H Zhao, C Yang, Y Xu, F Ji, M Wen… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
It is challenging to design an equalizer for the complex time-frequency doubly-selective
channel. In this paper, we employ the deep unfolding approach to establish an equalizer for …

Channel estimation and symbol demodulation for OFDM systems over rapidly varying multipath channels with hybrid deep neural networks

M Gümüş, TM Duman - IEEE Transactions on Wireless …, 2023 - ieeexplore.ieee.org
We consider orthogonal frequency division multiplexing over rapidly time-varying multipath
channels, for which performance of standard channel estimation and equalization …

Data augmentation aided complex-valued network for channel estimation in underwater acoustic orthogonal frequency division multiplexing system

Y Zhang, H Wang, C Li, F Meriaudeau - The Journal of the Acoustical …, 2022 - pubs.aip.org
In this paper, a data augmentation aided complex-valued network is proposed for
underwater acoustic (UWA) orthogonal frequency division multiplexing (OFDM) channel …

A Spatial-Specific Neural Network Based OFDM Channel Estimation Under Time-Varying Channels

W Huang, J Wang, X Chen, Q Peng… - IEEE Wireless …, 2023 - ieeexplore.ieee.org
Deep learning (DL) has exhibited notable effectiveness in channel estimation for orthogonal
frequency division multiplexing (OFDM) systems. However, most existing neural networks …

[HTML][HTML] Deep learning aided underwater acoustic OFDM receivers: Model-driven or data-driven?

H Zhao, M Wen, F Ji, Y Liang, H Yu, C Yang - Digital Communications and …, 2024 - Elsevier
Abstract The Underwater Acoustic (UWA) channel is bandwidth-constrained and
experiences doubly selective fading. It is challenging to acquire perfect channel knowledge …

Robust Underwater Acoustic Channel Estimation Method Based on Bias-Free Convolutional Neural Network

D Wang, Y Zhang, L Wu, Y Tai, H Wang… - Journal of Marine …, 2024 - mdpi.com
In recent years, the study of deep learning techniques for underwater acoustic channel
estimation has gained widespread attention. However, existing neural network channel …

Complex-valued deep network aided channel tracking for underwater acoustic communications

Y Zhang, H Wang, C Li… - OCEANS 2022-Chennai, 2022 - ieeexplore.ieee.org
In this work, a complex-valued deep neural network (ℂ-DNN) aided channel tracking
approach is proposed for underwater acoustic (UWA) orthogonal frequency division …

A prefix‐based approach for joint Doppler and channel estimation in underwater communication

VS Bhadouria, M Agrawal… - International Journal of …, 2023 - Wiley Online Library
Developing a reliable and robust underwater acoustic communication system is a difficult
task due to the complicated nature of the underwater channel, non‐stationary noise, and …