Zobrazeno 1 - 10
of 11 174
pro vyhledávání: '"Free space optical communication"'
Publikováno v:
IET Optoelectronics, Vol 18, Iss 4, Pp 121-129 (2024)
Abstract Free space optical communication (FSO) has become a popular research direction due to its high bandwidth, easy deployment, and inherent security. Its channel state is unstable because of atmospheric environment, especially in long‐distance
Externí odkaz:
https://doaj.org/article/941362d1495140cfbbffd89a76d75d2c
Publikováno v:
IET Networks, Vol 13, Iss 4, Pp 271-279 (2024)
Abstract Solar cells are increasingly being utilised for both energy harvesting and reception in free‐space optical (FSO) communication networks. The authors focus on the implementation of a mid‐band p‐In0.01Ga0.99 N/p‐In0.5Ga0.5 N/n‐In0.5G
Externí odkaz:
https://doaj.org/article/226e7bc3c59d4234b4cb97e94b613b83
Autor:
S.L. Sathiya Narayanan, B.C. Dhanush Devappa, Kalyani Pawar, Shreyas Jain, Appala Venkata Ramana Murthy
Publikováno v:
Results in Optics, Vol 16, Iss , Pp 100689- (2024)
The tremendous speed and security that Free Space Optical Communication (FSOC) technology provides have led to its rapid expansion. This opens up a plethora of possibilities for terrestrial communication with small ranges of up to a few kilometers, s
Externí odkaz:
https://doaj.org/article/def98d7acaf34817878fb4b0a87c02d2
Autor:
Ebrahim E. Elsayed, Mohammed R. Hayal, Irfan Nurhidayat, Mohd Asif Shah, Abdelrahman Elfikky, Ayman I. Boghdady, Davron Aslonqulovich Juraev, M. A. Morsy
Publikováno v:
IET Optoelectronics, Vol 18, Iss 1-2, Pp 11-31 (2024)
Abstract An enhanced transmission is presented in a multiple‐input‐multiple‐output (MIMO) dense‐wavelength division multiplexed (DWDM) free‐space‐optical (FSO) communication link using diversity coding techniques under the effect of turbu
Externí odkaz:
https://doaj.org/article/2b0d367070264a06be741080c3dff5d0
Publikováno v:
IEEE Access, Vol 12, Pp 11104-11113 (2024)
This paper presents a simulation framework for modelling optical underwater turbulence in conjunction with absorption and scattering. Using this technique, the channel is evaluated in two ways: the turbulent statistics in different channel conditions
Externí odkaz:
https://doaj.org/article/f92ac24fd43b4451a561aeafb27c77cd
Publikováno v:
The Journal of Engineering, Vol 2024, Iss 2, Pp n/a-n/a (2024)
Abstract A visible light positioning (VLP) system for multi‐cell networks based on multi‐colour LED that combines frequency division multiplexing with the received signal strength and a trilateration method is proposed. First, it employs experime
Externí odkaz:
https://doaj.org/article/b0556042a4e6415c800fffe2aae97967
Publikováno v:
Photonics, Vol 11, Iss 5, p 483 (2024)
Smart cities like Neom require efficient and reliable transportation systems to support their vision of sustainable and interconnected urban environments. High-speed trains (HSTs) play a crucial role in connecting different areas of the city and faci
Externí odkaz:
https://doaj.org/article/a70567b667874cac9a5551b2c1bd20ae
Autor:
Chris Graham, David Bramall, Othman Younus, Amna Riaz, Richard Binns, Eamon Scullion, Robert T. Wicks, Cyril Bourgenot
Publikováno v:
Aerospace, Vol 11, Iss 5, p 330 (2024)
Precision beam pointing plays a critical role in free-space optical communications terminals in uplink, downlink and inter-satellite link scenarios. Among the various methods of beam steering, the use of fast steering mirrors (FSM) is widely adopted,
Externí odkaz:
https://doaj.org/article/a7df148b09e64a329bc89c69fb48fa46
Autor:
Prakriti Saxena, Yeon Ho Chung
Publikováno v:
ICT Express, Vol 9, Iss 3, Pp 466-472 (2023)
In this work, we investigate the performance of an all-optical dual hop free-space optical (FSO) communication system using an unmanned aerial vehicle (UAV) as a relay and utilizing a reconfigurable optical intelligent reflecting surface (ROIRS) to i
Externí odkaz:
https://doaj.org/article/529d71d329704a6ea3b2fc95134c5ffc
Publikováno v:
Mìkrosistemi, Elektronìka ta Akustika, Vol 28, Iss 3 (2023)
The article considers a model of a free-space communication line between several closely located points on the terrain that are outside the line of sight. For the rapid deployment of communication lines with a range of up to hundreds of meters, any t
Externí odkaz:
https://doaj.org/article/7810c702bb3b4417b77087e1cbeb008a