Results 291 to 300 of about 75,227 (355)

Time-varying carrier frequency offset estimation in OFDM underwater acoustic communication

Signal Processing, 2022
We consider the problem of carrier frequency offset estimation in OFDM underwater acoustic communication. In our previous work, we suggested transmitting equi-power and equi-spaced pilot tones which led to a simple carrier frequency offset estimator ...
Gilad Avrashi, A. Amar, I. Cohen
semanticscholar   +1 more source

Shallow Underwater Acoustic Massive MIMO Communications

IEEE Transactions on Signal Processing, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wu, W, Gao, X, Sun, C, Li, GY, Li, G
openaire   +3 more sources

Dolphin Sounds-Inspired Covert Underwater Acoustic Communication and Micro-Modem [PDF]

Sensors, 2017
Gang Qiao, Yunjiang Zhao, Songzuo Liu
exaly   +2 more sources

A frequency hopping pattern inspired bionic underwater acoustic communication

Physical Communication, 2021
The covert underwater acoustic communication realized from the perspective of bionics draws an increasing interest in recent researches. Inspired by the frequency hopping spectrogram pattern, a bionic underwater acoustic communication method is proposed ...
Gang Qiao, Tianlong Ma, Songzuo Liu, Muhammad Bilal   +3 more
semanticscholar   +1 more source

OFDMA for underwater acoustic communications

2011 49th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2011
We investigate the possibility of using orthogonal frequency division multiple access (OFDMA) for design of efficient underwater acoustic (UWA) networks. The major challenge for the OFDMA-based UWA communication systems is the Doppler-induced frequency scaling, which may cause severe intercarrier interference (ICI), and depending on the particular user
Kai Tu, Tolga M. Duman, Milica Stojanovic, John G. Proakis   +3 more
openaire   +1 more source

Acoustic triboelectric nanogenerator for underwater acoustic communication

Nano Energy
Huilin Ge, Shaoqiang Chen, Yuchen Pan
exaly   +2 more sources

Stochastic resonance with reinforcement learning for underwater acoustic communication signal

, 2021
In the underwater acoustic communication (UAC), the receive signal is submerged in the heavy noise which make it hard to be detected. Stochastic resonance (SR) utilizes noise instead of eliminating it to improve the signal to noise ratio (SNR) and has ...
Yi Qiu, Fei Yuan, Shuyao Ji, En Cheng
semanticscholar   +1 more source

Enabling Unique Word OFDM for Underwater Acoustic Communication

IEEE Wireless Communications Letters, 2021
This letter presents a new scheme to solve the issue of high redundant energy in Unique Word Orthogonal Frequency Division Multiplexing (UW-OFDM). The proposed scheme, called Low-Redundant Energy UW-OFDM (LRE-UW-OFDM), is suitable for time-varied harsh ...
Zeyad A. H. Qasem, Junfeng Wang, Xiaoyan Kuai, Haixin Sun, Hamada Esmaiel   +4 more
semanticscholar   +1 more source

High-rate underwater acoustic communication at over 600 kbps $\times$ km for vertical uplink data transmission on a full-depth lander system

2021 Fifth Underwater Communications and Networking Conference (UComms), 2021
The Japan Agency for Marine-Earth Science and Technology (JAMSTEC) operates several unmanned and manned underwater vehicles for scientific research in deep water.
T. Shimura, Y. Kida, Mitsuyasu Deguchi, Yoshitaka Watanabe, Y. Maeda   +4 more
semanticscholar   +1 more source

Cooperative underwater acoustic communications.

IEEE Commun. Mag., 2013
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Suhail Al-Dharrab, Murat Uysal, Tolga M. Duman   +2 more
openaire   +3 more sources