Results 21 to 30 of about 13,205,388 (308)

Advances and Prospects of Free Space Optical Communication in Space Applications [PDF]

open access: yesعلوم، فناوری و کاربردهای فضایی
This research aims to investigate the emerging technology of free-space optical communication and its applications in the space industry. By employing light beams as information carriers, this technology offers significantly higher bandwidth and enhanced
Javad Haghshenas
doaj   +1 more source

Multi-Spot Tracking System for Free-Space Optical Communication [PDF]

open access: yesRadioengineering, 2022
This article describes a multi-spot tracking system for free space optic communications systems suitable for tracking optical terminals observed within the field-of-view of a wide angle telescope.
P. Skryja, J. Poliak, O. Wilfert
doaj  

Coherent optical binary polarisation shift keying heterodyne system in the free-space optical turbulence channel [PDF]

open access: yes, 2011
In this paper, analytical and simulation results for the bit error rate (BER) performance and fading penalty of a coherent optical binary polarization shift keying (2PolSK) heterodyne system adopted for a free space optical (FSO) communication link ...
Z. Ghassemlooy   +12 more
core   +1 more source

Differential Signalling in Free-Space Optical Communication Systems

open access: yesApplied Sciences, 2018
In this paper, we review the differential signalling techniques and investigate its implementation of in free-space optical (FSO) communication systems.
Mojtaba Mansour Abadi   +5 more
doaj   +1 more source

Optical Free-Space Communication on Earth and in Space regarding Quantum Cryptography Aspects [PDF]

open access: yes, 2010
Mobile FSO Communication links have gained signi cant at- tention over the last years due to their increasing maturity. They are used in point to point link scenarios where the high gain in power efficiency and datarate is crucial, compared to state-of ...
Fuchs, Christian   +3 more
core   +1 more source

SAC-OCDMA over Hybrid FTTx Free Space Optical Communication Networks

open access: yesJournal of Telecommunications and Information Technology, 2015
This paper presents an investigation of Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) over hybrid Fiber-to-the-x (FTTx) Free Space Optical (FSO) link under different weather conditions.
Ratna Kalos Zakiah Sahbudin   +4 more
doaj   +1 more source

G‐MGF based performance analysis of coherent FSO systems with multiple receivers

open access: yesElectronics Letters, 2021
This letter investigates the performance of coherent free‐space optical systems with multiple receivers especially through the generalised moment‐generating function based approach.
Seongah Jeong, Jinkyu Kang, Hoojin Lee
doaj   +1 more source

Free Space Optical Communication in Long-Reach Unidirectional Ring-Architecture Fiber Network

open access: yesIEEE Access, 2020
In the work, a ring-constructed wavelength-division-multiplexing (WDM) access system for delivering multiple free space optical (FSO) wireless signals is investigated.
Chien-Hung Yeh   +4 more
doaj   +1 more source

Automotive free-space optical communication at 1400nm [PDF]

open access: yes, 2021
Future vehicular transportation will use autonomous and semi-autonomous systems with, in part, the aim of significantly improving road safety. Implementing a reliable communication system that allows for the sharing of information between vehicles and ...
Farmer, James
core   +1 more source

The effect of atmospheric turbulence on the performance of the free space optical communications [PDF]

open access: yes, 2008
In free space optical (FSO) communication links, atmospheric turbulence has a significant impact on the quality of a laser beam propagating through the atmosphere.
Ghassemlooy, Zabih   +7 more
core   +1 more source

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