Results 31 to 40 of about 4,014 (208)

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

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

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

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

Perspective on tailoring longitudinal structured beam and its applications. [PDF]

Nanophotonics
Abstract Tailoring structured beams with varying lightwave properties along the longitudinal dimension has recently gained much interest. This paper gives a perspective on the advances of longitudinally structured beams, their potential applications, and future opportunities.
Willner AE, Zhou H, Su X.
europepmc   +2 more sources

MIMO free-space optical communication employing subcarrier intensity modulation in atmospheric turbulence channels [PDF]

, 2009
In this paper, we analyse the error performance of transmitter/receiver array free-space optical (FSO) communication system employing binary phase shift keying (BPSK) subcarrier intensity modulation (SIM) in clear but turbulent atmospheric channel ...
E. Leitgeb, E.J. Lee, G.R. Osche, H. Willebrand, I.B. Djordjevic, J. Li, M. Razavi, M. Uysal, R.L. Mitchell, R.M. Gagliardi, S. Karp, W.O. Popoola, X. Zhu   +12 more
core   +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

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

Experimental study of bit error rate of free space optics communications in laboratory controlled turbulence [PDF]

, 2010
This paper reports experimental results for the performance of an free space optical (FSO) communication link employing different modulation schemes under the influence of the atmospheric scintillation.
Adebanjo, Olusegun, Ansari, S., Ghassemlooy, Zabih, Ijaz, Muhammad, Le Minh, Hoa, Leitgeb, Erich, Rajbhandari, Sujan   +6 more
core   +1 more source