Non-uniform Non-orthogonal Multicarrier Underwater Communication for Compressed Sonar Image Data transmission

2021 ◽  
pp. 1-1
Author(s):  
Junfei Cui ◽  
Guangyao Han ◽  
Yishan Su ◽  
Xiaomei Fu
Keyword(s):  
Data Transmission ◽  
Image Data ◽  
Underwater Communication ◽  
Sonar Image

scholarly journals Performance of Polar-Coded 3D Image Transmission over Fading Channel

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Jianjun Hao ◽  
Luyao Liu ◽  
Wei Chen
Keyword(s):  
White Noise ◽  
Data Transmission ◽  
Fading Channel ◽  
Point Cloud ◽  
Gaussian White Noise ◽  
Image Data ◽  
Image Transmission ◽  
Transmission System ◽  
3D Point Cloud ◽  
3D Image

Any signal transmitted over an air-to-ground channel is corrupted by fading, noise, and interference. In this paper, a Polar-coded 3D point cloud image transmission system with fading channel is modeled, and also the simulation is performed to verify its performance in terms of 3D point cloud image data transmission over Rician channel with Gaussian white noise and overlap of Gaussian white noise + periodic pulse jamming separately. The comparison of Polar-coded scheme with RS-coded scheme in the same scenario indicates that Polar-coded system gives far better performance against AWGN noise and fading than the RS-coded system does in the case of short block length. But RS-coded scheme shows better performance on antipulse jamming than that of Polar-coded scheme, while there is no interleaving between codewords.

Underwater Communication Through Li-Fi for Data Transmission

2021 ◽  
Author(s):  
T Sivasakthi ◽  
U Palani ◽  
D Vasanthi ◽  
S Subhashree ◽  
S Roshini ◽  
...  
Keyword(s):  
Data Transmission ◽  
Underwater Communication

Image Compression Technology Based on the Analysis Theory of Wavelet

2012 ◽  
Vol 160 ◽  
pp. 400-404
Author(s):  
Hui Guo ◽  
Jie He
Keyword(s):  
Image Compression ◽  
Data Transmission ◽  
Quantitative Data ◽  
Image Data ◽  
Compression Algorithm ◽  
Compression Method ◽  
Huge Amount ◽  
Analysis Theory ◽  
Wavelet Image ◽  
Image Compression Algorithm

Due to the huge amount of image data transmission conditions and the existing relative low, makes the image compression become inevitable, key technology of image compression for image data transform to transform the quantitative data, as well as to the quantitative data, after the entropy coding.And this article USES the 2 d Mallat of wavelet image compression algorithm is a kind of common image compression method of wavelet image compression algorithm is the core.

scholarly journals Design of Low Power Hybrid Communication Model

2021 ◽  
Author(s):  
Menaka D ◽  
Sabitha Gauni ◽  
Manimegalai C.T ◽  
Kalimuthu K
Keyword(s):  
Optical Communication ◽  
Data Transmission ◽  
Weather Conditions ◽  
Communication Model ◽  
Underwater Communication ◽  
Long Distance ◽  
Weather Forecasts ◽  
High Data ◽  
Military Equipment ◽  
Wireless Optical Communication

Abstract Communication in underwater is a growing research topic that plays a big role in forecasting accurate weather conditions. In which Acoustic communication is the upcoming technology well qualified for its long-distance underwater communication with certain restrictions like low data rate and high latency. To overcome this constrain wireless optical communication are preferred for high data transmission and less delay. The attempts are made to analyze the performance of the turbid and coastal water conditions.To improve the underwater communication model,a hybrid model is proposed for the applications like weather forecasts, military equipment, and missing debris.

Compensation of sonar image data primarily for seabed classification

2005 ◽  
Vol 118 (2) ◽  
pp. 586 ◽  
Author(s):  
Jonathan M. Preston ◽  
Anthony C. Christney
Keyword(s):  
Image Data ◽  
Sonar Image ◽  
Seabed Classification
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