MIMO-OFDM underwater acoustic communication systems—A review

G Qiao, Z Babar, L Ma, S Liu, J Wu - Physical Communication, 2017 - Elsevier
channels. It combines the benefits of spatially de-correlated acoustic channel with the
frequency diversity … Thus coherent MIMO-OFDM systems have been considered ideal choice for …

Generalized frequency division multiplexing–based acoustic communication for underwater systems

RP Hebbar, PG Poddar - … Journal of Communication Systems, 2020 - Wiley Online Library
… UW acoustic channels using coded and uncoded OFDM-… to provide diversity gain in a
multipath fading channel. Two … and test its performance in underwater acoustic channel. The …

Index modulated OFDM for underwater acoustic communications

M Wen, X Cheng, L Yang, Y Li… - IEEE Communications …, 2016 - ieeexplore.ieee.org
… which encodes part of the information via the index of each transmit antenna [8]. SM works
if and only if the radio channels from different transmit antennas are diverse, and it is shown to …

A channel-aware adaptive modem for underwater acoustic communications

S Mangione, GE Galioto, D Croce, I Tinnirello… - Ieee …, 2021 - ieeexplore.ieee.org
… The large diversity of underwater wireless scenarios and … for example OFDM modulations
and high frequency acoustic … review about OFDM schemes for underwater channels and …

An OFDM-based frequency domain equalization algorithm for underwater acoustic communication with a high channel utilization rate

C Feng, Y Luo, J Zhang, H Li - Journal of Marine Science and …, 2023 - mdpi.com
… prefixes in the OFDM. The … underwater acoustic channels without using any cyclic prefix.
Additionally, it greatly improves the frequency band utilization of the OFDM-based underwater

Channel Estimation and Equalization of Underwater Acoustic MIMO-OFDM Systems: A Review Estimation du canal et l'égalisation des systèmes MEMS-MROF …

G Qiao, Z Babar, L Ma, N Ahmed - Canadian Journal of …, 2019 - ieeexplore.ieee.org
… spatial diversity of the system, and orthogonal frequencydivision multiplexing (… underwater
acoustic (UWA) channel make underwater communication different from radio communication […

DFT-precoded MIMO OFDM underwater acoustic communications

J Tao - IEEE Journal of Oceanic Engineering, 2017 - ieeexplore.ieee.org
… selective, for the frequency-dependent attenuation as well as … frequency diversity gain for
the OFDM UWA communication, … communication over underwater acoustic channels with …

Comparative performance assessment between FFT‐based and FRFT‐based MIMO‐OFDM systems in underwater acoustic communications

M Nassiri, G Baghersalimi - IET Communications, 2018 - Wiley Online Library
… (FFT) in underwater acoustic (UWA) communication channels is evaluated and compared …
the receiver, Doppler frequencies, and MIMO modes including diversity and multiplexing. The …

Enabling unique word OFDM for underwater acoustic communication

ZAH Qasem, J Wang, X Kuai, H Sun… - … Communications …, 2021 - ieeexplore.ieee.org
… Also, the permutation matrix P is used as a channel precoder to explore the multipath
diversity. In the same line, the similarity between the DFT and DHT matrices cancels inter-carrier …

Underwater acoustic communication using Doppler-resilient orthogonal signal division multiplexing in a harbor environment

T Ebihara, G Leus, H Ogasawara - Physical Communication, 2018 - Elsevier
frequency domain with guardbands to fully exploit the time and frequency diversity of UWA
channels. … D-OSDM and D-OFDM improves with the use of channel coding and that D-OSDM …