Free-space, laser-based data transmission: satellite communication as a technology driver for the development of fast, reliable terrestrial data networks

2008 ◽  
Author(s):  
Martin Gerken ◽  
Georg Luichtel
Keyword(s):  
Data Transmission ◽  
Free Space ◽  
Satellite Communication ◽  
Data Networks ◽  
Terrestrial Data

scholarly journals MODELLING THE SATELLITE COMMUNICATION LINKS WITH ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING

Transport ◽  
2015 ◽  
Vol 31 (1) ◽  
pp. 22-28 ◽  
Author(s):  
Volodymir Kharchenko ◽  
Bo Wang ◽  
Andrii Grekhov ◽  
Anna Leschenko
Keyword(s):  
Data Transmission ◽  
Free Space ◽  
Orthogonal Frequency Division Multiplexing ◽  
Satellite Communication ◽  
Additive White Gaussian Noise ◽  
Adaptive Modulation ◽  
Noise Temperature ◽  
Actual Problem ◽  
Ieee 802.11A ◽  
Communication Links

Global technologies of data transmission in real time are developing constantly. Therefore, modelling of messages transmission through satellite constellations is an actual problem. In this paper the original model of a communication channel ‘Vehicle-to-Satellite-to-Ground Station’ based on principles of the IEEE 802.11a standard is designed using MatLab Sіmulіnk software. The model allows simulating data transmission with data rate from 6 to 54 Mbit/s using adaptive modulation. Two types of channels were analysed for uplink/downlink modulation – a free space path losses with phase/frequency offset and Additive White Gaussian Noise (AWGN) link. On the base of this model, channel integrity was investigated and dependences of a Signal-Noise Ratio (SNR) on free space path losses, antennas diameters, number of OFDM symbols and satellite transponder noise temperature were received.

scholarly journals Free-space and underwater GHz data transmission using AlGaInN laser diode technology

2016 ◽  
Author(s):  
S. P. Najda ◽  
P. Perlin ◽  
T. Suski ◽  
L. Marona ◽  
M. Boćkowski ◽  
...  
Keyword(s):  
Laser Diode ◽  
Data Transmission ◽  
Free Space

Analog ghost hidden in 2D random binary patterns for free-space optical data transmission

2022 ◽  
Vol 150 ◽  
pp. 106880
Author(s):  
Yin Xiao ◽  
Lina Zhou ◽  
Zilan Pan ◽  
Yonggui Cao ◽  
Mo Yang ◽  
...  
Keyword(s):  
Data Transmission ◽  
Free Space ◽  
Optical Data ◽  
Free Space Optical

Diffractive optical element in free-space data transmission systems

2000 ◽  
Author(s):  
Kari J. Kataja ◽  
Pertti Paakkonen ◽  
Jari P. Turunen ◽  
Juha T. Rantala ◽  
Pentti Karioja
Keyword(s):  
Data Transmission ◽  
Free Space ◽  
Optical Element ◽  
Diffractive Optical Element ◽  
Transmission Systems ◽  
Space Data

Performance analysis on free space underwater data transmission using Bessel–Gaussian​ beams in a simulated ocean channel with various effects

2020 ◽  
Vol 473 ◽  
pp. 125969 ◽  
Author(s):  
Yang Wang ◽  
Peng Zhang ◽  
Xuelei Wang ◽  
Xiaoyan Li ◽  
Tong Wang ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Data Transmission ◽  
Free Space ◽  
Gaussian Beams

Terabit free-space data transmission employing orbital angular momentum multiplexing

2012 ◽  
Vol 6 (7) ◽  
pp. 488-496 ◽  
Author(s):  
Jian Wang ◽  
Jeng-Yuan Yang ◽  
Irfan M. Fazal ◽  
Nisar Ahmed ◽  
Yan Yan ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Data Transmission ◽  
Free Space ◽  
Space Data

scholarly journals Data-Aided Carrier Recovery with QPSK Modulation

2019 ◽  
Vol 24 (1) ◽  
pp. 14-22
Author(s):  
Muhanned Al-Rawi
Keyword(s):  
Data Transmission ◽  
Communication Systems ◽  
Satellite Communication ◽  
Digital Communication ◽  
Design Tool ◽  
Digital Data ◽  
Carrier Recovery ◽  
Coherent Demodulation ◽  
Tool Performance ◽  
Shift Keying

Abstract Digital communication has proven to be the most efficient method of data transmission especially where long distances are involved. This led to the invention of more sophisticated methods of communication ranging from mobile handset communication to more advanced satellite communication. The speeds of passing information have been improving over the years and real time video communication has been made possible with digital devices. Various methods of digital data transmission are employed based on the information to be transmitted. This paper focuses on carrier recovery in digital communication systems, especially those based on Quadrature Phase Shift Keying (QPSK) modulation and demodulation scheme. The design being implemented is that of coherent demodulation for QPSK scheme using SIMULINK design tool. Performance of QPSK is also investigated to make a comparison and the suitability of the scheme to use in digital data transmission applications.

scholarly journals Implementation and Evaluation of Nodal Distribution and Movement in a 5G Mobile Network

2021 ◽  
Vol 13 (12) ◽  
pp. 321
Author(s):  
Dmitry Baranov ◽  
Alexandr Terekhin ◽  
Dmitry Bragin ◽  
Anton Konev
Keyword(s):  
Communication Networks ◽  
Data Transmission ◽  
Communication Systems ◽  
Mobile Network ◽  
Base Station ◽  
Data Networks ◽  
Network Simulator ◽  
Transmission Networks ◽  
New Generation ◽  
Determining Factor

The determining factor in the accelerated pace of informatization is the increase in the speed and reliability of data transmission networks. In this regard, new and existing standards are developed and modernized. A lot of organizations are constantly working on the development and implementation of new generation communication networks. This article provides an overview of available software solutions that allow us to investigate and evaluate the behavior of data networks. In particular, tools suitable for mobile communication systems were determined, having sufficient built-in functionality and allowing us to add our own implementations. NS3 has been chosen as a suitable network simulator. Apart from the review, a solution for this tool was developed. It allows estimating the reliability of data transmission from the start movement of a network node at all times during its removal from a base station.

scholarly journals Development of a method for the determination and registration of unauthorized data transmission channels at industrial manufactories

2019 ◽  
Vol 298 ◽  
pp. 00110
Author(s):  
Ilya Kovalev ◽  
Michael Babin ◽  
Petr Nikishechkin
Keyword(s):  
Complex Systems ◽  
Data Transmission ◽  
Modern World ◽  
Data Networks ◽  
Wireless Data Networks ◽  
Wireless Data ◽  
Security Systems ◽  
Software Complex ◽  
Industrial Espionage ◽  
Hidden Data

The problem of industrial espionage is very common in the modern world. Existing complex systems are difficult to configure and turnkey solutions are created from integrator firms. In many enterprises, both industrial and civilian, wireless is a less secure area. The proposed solution, which is used as an addition to existing security systems, is able to detect not only created networks with the usual parameters, but also detect hidden data networks and signal unregistered wireless data networks to send information to a special server. The paper presents the architecture of the hardware-software complex, presents the first prototype and conducts test tests.

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