Results 31 to 40 of about 3,957 (187)

Route diversity analyses for free-space optical wireless links within turbulent scenarios [PDF]

, 2013
Free-Space Optical (FSO) communications link performance is highly affected when propagating through the time-spatially variable turbulent environment.
Anguita, Belmonte, Chatzidiamantis, Gappmair, Ghassemlooy, Grabner, Jeganathan, Jiri Libich, Joaquin Perez, Kaneko, Kashyap, Khalighi, Ko, Lee, Lee, Letzepis, Libich, Moradi, Navidpour, Perez, Popoola, Popoola, Rosenberg, Stanislav Zvanovec, Sujan Rajbhandari, Tsiftsis, Tyson, Walther, Zabih Ghassemlooy, Zhu   +29 more
core   +2 more sources

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

Revolutionizing Free-Space Optics: A Survey of Enabling Technologies, Challenges, Trends, and Prospects of Beyond 5G Free-Space Optical (FSO) Communication Systems. [PDF]

Sensors (Basel)
As the demand for high-speed, low-latency communication continues to grow, free-space optical (FSO) communication has gained prominence as a promising solution for supporting the next generation of wireless networks, especially in the context of the 5G and beyond era.
Alimi IA, Monteiro PP.
europepmc   +4 more sources

A Hybrid Optical Fiber and FSO System for Bidirectional Communications Used in Bridges

IEEE Photonics Journal, 2015
In this paper, a 10-Gb/s hybrid optical fiber (OF) and free-space optics (FSO) link as part of a bidirectional long-haul OF transmission for application in outdoor environments such as bridges is proposed.
Yi-Lin Yu, Shien-Kuei Liaw, Hsi-Hsir Chou, Hoa Le-Minh, Zabih Ghassemlooy   +4 more
doaj   +1 more source

Experimental investigation of the performance of different modulation techniques under controlled FSO turbulence channel [PDF]

, 2011
This paper experimentally investigates and compares the performance of the free space optics system employing three different modulation schemes, on-off keying (OOK) with nonreturn- to-zero (NRZ) and return-to-zero (RZ) and the binary phase shift keying (
Adebanjo, Olusegun, Ansari, S., Ghassemlooy, Zabih, Ijaz, Muhammad, Le Minh, Hoa, Rajbhandari, Sujan   +5 more
core   +1 more source

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

Simultaneous Pre-and Post-Turbulence Compensation of Multiple Orbital-Angular-Momentum 100-Gbit/s Data Channels in a Bidirectional Link Using a Single Adaptive-Optics System [PDF]

, 2013
The simultaneous pre-and post-turbulence compensation of multiple orbital-angular-momentum (OAM) modes propagating through turbulent channel is experimentally demonstrated in a bidirectional free-space optical (FSO) link by using a single adaptive-optics
Ahmed, Nisar, Bao, Changjing, Boyd, Robert W., Dolinar, Samuel J., Huang, Hao, Lavery, Martin P. J., Li, Long, Neifeld, Mark, Padgett, Miles J., Ren, Yongxiong, Shapiro, Jeffrey H., Tur, Moshe, Willner, Alan E., Willner, Moshe, Xie, Guodong, Yan, Yan   +15 more
core   +1 more source

Impact of Pointing Errors on the Performance of Mixed RF/FSO Dual-Hop Transmission Systems [PDF]

, 2013
In this work, the performance analysis of a dual-hop relay transmission system composed of asymmetric radio-frequency (RF)/free-space optical (FSO) links with pointing errors is presented.
Alouini, Mohamed-Slim, Ansari, Imran Shafique, Yilmaz, Ferkan   +2 more
core   +2 more sources

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

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