Results 41 to 50 of about 31,839 (188)
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 +5 more
core +1 more source
Analysis of possibilities for measurement effect of visibility in experimental FSO system
Open Computer Science, 2018 Nowadays, wireless optical systems are very popular because they offer a a lot of advantages including high speed transmission, high security levels, and low maintenance costs. One of these wireless optical systems is Free Space Optics (FSO).
Márton Michal +3 more
doaj +1 more source
Optical, Wired and Wireless Multimedia Service Access Solutions for Trend Setting Real Estates
Communications, 2008 It is a well known fact that the value of real estates is raised tremendously by its connection to information technology services like Voice over IP (VoIP), IPTV, Video on Demand (VoD), basic Internet services and house-, security- and surveillance ...
Peter Mandl, P. Schrotter, E. Leitgeb
doaj +1 more source
Current optical technologies for wireless access [PDF]
, 2009 The objective of this paper is to describe recent activities and investigations on free-space optics (FSO) or optical wireless and the excellent results achieved within SatNEx an EU-framework 6th programme and IC 0802 a COST action.
Awan, Muhammad +8 more
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On the Performance of Millimeter Wave-based RF-FSO Multi-hop and Mesh Networks
, 2017 This paper studies the performance of multi-hop and mesh networks composed of millimeter wave (MMW)-based radio frequency (RF) and free-space optical (FSO) links.
Alouini, Mohamed-Slim +3 more
core +1 more source
The Anatomical Record, EarlyView.Abstract Softshell turtles (Pan‐Trionychidae) are an early branching clade of hidden‐necked turtles (Cryptodira) with a rich fossil record extending back to the Early Cretaceous. The evolutionary history of softshell turtles is still unresolved because of their conservative morphology combined with high levels of polymorphism related to morphological ...
Léa C. Girard, Walter G. Joyce
wiley +1 more source
Drug Testing and Analysis, EarlyView.This study investigates the effect of the reaction temperature (step 1) and reaction time (step 1 and 2) on the conversion efficiency and impurity profile of amphetamine synthesized via the Leuckart method. Conversion efficiency and impurity profile were assessed using gas chromatography–flame ionization detection (GC–FID) and GC–mass spectrometry (GC ...
Maartje C. M. Verhoeven +7 more
wiley +1 more source
IEEE Photonics Journal, 2022 This paper investigates the ergodic capacity performance of hybrid free space optics (FSO)/ radio frequency (RF) system by employing an adaptive-combining-based switching scheme.
Narendra Vishwakarma, Swaminathan R
doaj +1 more source
Heat Transfer, EarlyView.ABSTRACT This study investigates the thermal performance of innovative biphilic boiling surfaces designed for CPU cooling applications using a two‐phase closed thermosyphon (TPCT) system. The surfaces were fabricated by applying composite coatings—comprising epoxy resin and diatomite particles functionalized with APTES and PFOTS silanes— onto Al1050 ...
José Pereira +3 more
wiley +1 more source
Investigation of turbulence effect on the free space optical link for ground-to-train communications [PDF]
, 2011 There is a growing demand for high mobility and ultrafast internet/data services which drives the motivation for free space optical (FSO) communications for high speed trains.
Ghassemlooy, Zabih +4 more
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