Double the data rate in underwater acoustic communication using OFDM based on subcarrier power modulation

H Alraie, R Alahmad, K Ishii - Journal of Marine Science and Technology, 2024 - Springer
… In this paper, we proposed OFDM subcarrier power modulation (OFDM-SPM) as a two-… in
underwater acoustic communication. The system provides a noncoherent modulation method …

Real signal DHT-OFDM with index modulation for underwater acoustic communication

ZAH Qasem, J Wang, HA Leftah, H Sun… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
modulation such as DCT-OFDM or DHT-OFDM, the subcarrier duration decreases to be half
of the in DFT-OFDM… real signalbased modulation order (Mr) and the DFT-OFDM modulation

Performance of OFDM‐based massive MIMO OTFS systems for underwater acoustic communication

MJ Bocus, A Doufexi, D Agrafiotis - IET Communications, 2020 - Wiley Online Library
… In this study, multi-user (MU) underwater acoustic communication is investigated using …
division multiplexing (OFDM)-based orthogonal time frequency space modulation (OTFS) systems…

X-transform time-domain synchronous IM-OFDM-SS for underwater acoustic communication

ZAH Qasem, HA Leftah, H Sun, J Qi… - IEEE Systems …, 2021 - ieeexplore.ieee.org
… as the main TDS-OFDM drawback in the harsh long-delay underwater acoustic (UWA) …
-domain synchronous index modulation (IM) OFDM to eliminate the TDS-OFDM IBI, explore the …

Precoded IM‐OFDM‐SS for Underwater Acoustic Communication

ZAH Qasem, HA Leftah, H Sun… - … Communications and …, 2022 - Wiley Online Library
… a multicarrier reliable underwater acoustic (UWA) communication. This … modulation
orthogonal frequency division modulation spread spectrum (IM-OFDM-SS), for UWA communication

Adaptive modulation for long-range underwater acoustic communication

J Huang, R Diamant - … on Wireless Communications, 2020 - ieeexplore.ieee.org
… Recall that we consider JANUS, BPSK, QPSK and OFDM as the fixed modulation schemes
… Stojanovic, “Adaptive OFDM modulation for underwater acoustic communications: Design …

Adaptive OFDM non-uniform modulation for underwater acoustic communication

N Kapileswar, PP Kumar, NU Reddy… - … , Communication …, 2020 - ieeexplore.ieee.org
… In this section, we presented the schematic and functionality of underwater acoustic
communication between two networks. Among all the wireless communication techniques, the …

Research on underwater acoustic communication system based on OFDM-OAM

YX Guo, XA Song, RQ Zhang, H Li - Automatic Control and Computer …, 2020 - Springer
… It includes signal generator and hydroacoustic OFDM transmitter that modulates with 2D-IFFT
(Two-dimensional inverse fast Fourier transform) algorithm and introduces CP. A plurality …

Enabling unique word OFDM for underwater acoustic communication

ZAH Qasem, J Wang, X Kuai, H Sun… - … Communications …, 2021 - ieeexplore.ieee.org
… CP-OFDM provides a low-complexity process as a one-tap … ZP-OFDM is preferred in UWA
communication since filling … UW-OFDM to be used with any communication system without …

A channel-aware adaptive modem for underwater acoustic communications

S Mangione, GE Galioto, D Croce, I Tinnirello… - Ieee …, 2021 - ieeexplore.ieee.org
… The OFDM modulation is calibrated by using the design criteria of our intelligent module, ie
by configuring NCP = DelaySpread/Ts and N = 0.08/(DopplerSpread · Ts) − NCP . Therefore, …