Results 31 to 40 of about 7,278,007 (215)

Carriers Generated by Mode-Locked Laser to Increase Serviceable Channels in Radio Over Free Space Optical Systems

IEEE Photonics Journal, 2015
Mode-locked optical carriers with applicability for radio over free space optics (RoFSO) systems have been produced via a ring laser cavity incorporating an add/drop filter.
H. Ahmad, M. R. K. Soltanian, I. S. Amiri, S. E. Alavi, A. R. Othman, A. S. M. Supa'at   +5 more
doaj   +1 more source

BER and outage probability of DPSK subcarrier intensity modulated free space optics in fully developed speckle. [PDF]

, 2009
In this paper a differential phase shift keying (DPSK) subcarrier intensity modulated (SIM) free space optical (FSO) link is considered in negative exponential atmospheric turbulence environment.
Ghassemlooy, Zabih, Popoola, Wasiu Oyewole, Popoola, Wasiu O., Leitgeb, Erich, Ghassemlooy , Zabih   +4 more
core   +1 more source

Performance analysis of WSN–FSO system modeled by Gamma–Chi-square channel distribution [PDF]

Proceedings of the Estonian Academy of Sciences, 2023
This paper presents the WSN–FSO (wireless sensor network–free-space optics) system based on CCR (corner cube retroreflector) and modeled with Gamma–Chi-square distribution.
Jelena Todorović, Branimir Jakšić, Petar Spalević, Miloš Dobrojević, Ivan Milovanović   +4 more
doaj   +1 more source

Performance of BPSK subcarrier intensity modulation free-space optical communications using a log-normal atmospheric turbulence model [PDF]

, 2010
In this paper, we present simulation results for the bit error rate (BER) performance and the fading penalty of a BPSK - subcarrier intensity modulation (BPSK-SIM) free-space optical (FSO) communication link in a log-normal atmospheric turbulence model ...
S. S. Muhammad, Z. Ghassemlooy, E. Leitgeb, Tang, Xuan, Muhammad, Sajid Sheikh, S. Rajbhandari, Ghassemlooy, Zabih, Popoola, Wasiu Oyewole, W. O. Popoola, Kandus, Gorazd, Leitgeb, Erich, Rajbhandari, Sujan, X. Tang, G. Kandus   +13 more
core   +1 more source

Hybrid POF/VLC Links Based on a Single LED for Indoor Communications

Photonics, 2021
A hybrid fiber/wireless link based on a single visible LED and free of opto-electronic intermediate conversion stages has been demonstrated for indoor communications.
Juan Andrés Apolo, Beatriz Ortega, Vicenç Almenar   +2 more
doaj   +1 more source

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

, 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, Tang, Xuan, S. Rajbhandari, Lee , Chung Ghiu, Ghassemlooy, Zabih, Popoola, Wasiu Oyewole, W.O. Popoola, C.G. Lee, Popoola, Wasiu O., Rajbhandari, Sujan, Lee, Chung Ghiu, X. Tang, Ghassemlooy , Zabih   +12 more
core   +1 more source

Analysis of Free-Space Optics Development [PDF]

, 2017
The article presents state of work in technology of free-space optical communications (Free Space Optics − FSO). Both commercially available optical data links and their further development are described.
Mikołajczyk Janusz, Bugajski Maciej, Piotrowski Józef, Prokopiuk Artur, Bielecki Zbigniew, Wojtas Jacek, Gawron Waldemar, Szabra Dariusz   +7 more
core   +2 more sources

PDF Comparison based on Various FSO Channel Models under Different Atmospheric Turbulence

Al-Khawarizmi Engineering Journal, 2023
Recently, wireless communication environments with high speeds and low complexity have become increasingly essential. Free-space optics (FSO) has emerged as a promising solution for providing direct connections between devices in such high-spectrum ...
Mahdi A. Atiyah, Lwaa Faisal Abdulameer, Gaurav Narkhedel   +2 more
doaj   +1 more source

A software pilot application to calculate the parameters involved in subsidiaries interconnection based on FSO technology

Revista Facultad de Ingeniería, 2017
Free Space Optics (FSO) technology transmits information using free space optical signals similar to those that travel through optical fibers. The capacity of FSO to connect buildings close together is covered in this paper.
Jorge Enrique Salamanca, Danilo Alfonso López-Sarmiento, Adriana Patricia Gallego-Torres   +2 more
doaj   +1 more source

Modelling System Parameters for Improvised Performance in Free Space Optics (FSO) Networks

International Journal of Electrical and Electronics Research, 2023
Free space optics (FSO) is a remote method for correspondence that send information by means of an optical source. The medium among transmitter and recipient is a free space that has an away from of sight for imparting the sign. Air, vacuum, and space can go about as free space.
K. Sony, Babu K. Rajesh, Ch. Suneetha, N. Venkatesh, Y. Dasaratha Rami Reddy   +4 more
openaire   +1 more source