Sea lion optimization algorithm based node deployment strategy in underwater acoustic sensor network

K Kumar Gola, N Chaurasia, B Gupta… - International Journal …, 2021 - Wiley Online Library
In the ocean, huge number of sensor nodes (SNs) are located to transfer the information
between other nodes using the Underwater Acoustic Sensor Network (UASN) framework. An …

Deep learning-based signal detection for underwater acoustic otfs communication

Y Zhang, S Zhang, B Wang, Y Liu, W Bai… - Journal of Marine …, 2022 - mdpi.com
Orthogonal time frequency space (OTFS) is a novel two-dimensional (2D) modulation
technique that provides reliable communications over time-and frequency-selective …

Single acoustic vector sensor DOA enhanced by unsaturated bistable stochastic resonance with linear amplitude response constrained

J Suo, H Wang, H Dong, X Shen, Y Yan, H Zhang - Applied Acoustics, 2023 - Elsevier
Acoustic vector sensors (AVS) are increasingly utilized for remote target passive perception,
but accurate direction-of-arrival (DOA) estimation remains a formidable challenge …

OTFS underwater acoustic communications based on passive time reversal

L Jing, N Zhang, C He, J Shang, X Liu, H Yin - Applied Acoustics, 2022 - Elsevier
Orthogonal time-frequency-space (OTFS) is a new two-dimensional (2D) modulation
technique that offers reliable communications over time-varying channels. Due to the …

Sparse Bayesian learning for channel estimation in time-varying underwater acoustic OFDM communication

G Qiao, Q Song, L Ma, S Liu, Z Sun, S Gan - IEEE Access, 2018 - ieeexplore.ieee.org
In this paper, we study the sparse Bayesian learning (SBL) framework for channel estimation
in underwater acoustic (UWA) orthogonal frequency-division multiplexing (OFDM) …

Multi-block Sparse Bayesian learning channel estimation for OFDM underwater acoustic communication based on fractional Fourier transform

S Jia, S Zou, X Zhang, D Tian, L Da - Applied Acoustics, 2022 - Elsevier
In OFDM underwater acoustic communication, according to the sparse characteristics of
underwater acoustic communication channel in the time domain, sparse Bayesian learning …

DNN-based signal detection for underwater OTFS systems

S Zhang, Y Zhang, J Chang, B Wang… - 2022 IEEE/CIC …, 2022 - ieeexplore.ieee.org
Orthogonal time-frequency-space (OTFS) is a new two-dimensional (2D) modulation
technique that offers reliable communications over time-frequency selective channels. In …

Further results on maximal ratio combining under correlated noise for multi-carrier underwater acoustic communication using vector sensors

L Ma, Y Yang, Z Wang, G Wu, AY Khan, S Liu - Applied Acoustics, 2023 - Elsevier
In the isotropic marine ambient noise field, the pressure and particle velocity signal
processing based on the maximal ratio combining (MRC) algorithm can effectively improve …

Full-duplex underwater acoustic communications via self-interference cancellation in space

YT Hsieh, Z Qi, D Pompili - Journal of Communications and …, 2023 - ieeexplore.ieee.org
Traditionally, underwater acoustic communications are half-duplex (HD), ie, the
hydrophones and transducers operate in non-overlapping time-slots/frequency-bands in …

A low-complexity orthogonal matching pursuit based channel estimation method for time-varying underwater acoustic OFDM systems

G Qiao, Q Song, L Ma, L Wan - Applied Acoustics, 2019 - Elsevier
In this paper, we propose a low-complexity Orthogonal Matching Pursuit (OMP) based
channel estimation method in underwater acoustic (UWA) orthogonal frequency division …