Results 31 to 40 of about 31,839 (188)
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 +2 more
core +2 more sources
Unified Performance Analysis of Mixed Line of Sight RF-FSO Fixed Gain Dual-Hop Transmission Systems [PDF]
, 2014 In this work, we carry out a unified performance analysis of a dual-hop fixed gain relay system over asymmetric links composed of both radio-frequency (RF) and unified free-space optics (FSO) under the effect of pointing errors. The RF link is modeled by
Alouini, Mohamed-Slim +2 more
core +2 more sources
IEEE Photonics Journal, 2022 The scheme of combining relay and optical code division multiple access (OCDMA) is one of the effective methods to improve the reliability and security of free space optical (FSO) communication system.
Jianhua Ji +4 more
doaj +1 more source
Cost-Effectiveness of Applying Fluoride Varnish to Preschoolers in a Brazilian Scenario: An Economic Modelling Study. [PDF]
Community Dent Oral EpidemiolABSTRACT Background International economic evaluations have not found convincing evidence that the application of fluoride varnish (FV) in preschool children is a cost‐effective anti‐caries measure, and there is a lack of economic evaluations of FV in the Brazilian context.
Dhyppolito IM +3 more
europepmc +2 more sources
WiMAX on FSO: Outage Probability Analysis [PDF]
IEEE Transactions on Communications, 2012 The transmission of multiple wireless signals over optical links has attained a great research interest nowadays. In case where optical fibers are difficult to be deployed, or installation cost is prohibited, optical wireless systems provide an efficient alternative means.
Vaiopoulos, N. +2 more
openaire +2 more sources
Shadowed FSO/mmWave Systems With Interference [PDF]
IEEE Transactions on Communications, 2019 We investigate the performance of mixed free space optical (FSO)/millimeter-wave (mmWave) relay networks with interference at the destination. The FSO/mmWave channels are assumed to follow Malaga-M/Generalized-K fading models with pointing errors in the FSO link.
Imene Trigui +3 more
openaire +2 more sources
Advances in Electrical and Electronic Engineering, 2014 The use of LED for illumination and communication together is more and more interesting with the increasing deployment of LEDs to our homes and industrial buildings.
Stanislav Hejduk +5 more
doaj +1 more source
Adaptive-Combining-Based Hybrid FSO/RF Satellite Communication With and Without HAPS
IEEE Access, 2021 In recent years, a growing interest has been witnessed in the usage of free space optics (FSO) link for satellite communication (SATCOM) scenarios, as it offers much higher data rates up to gigabits per second (Gbps) compared to existing radio frequency (
Suyash Shah +4 more
doaj +1 more source
Methods of Atmospheric Coherence Length Measurement
Applied Sciences, 2022 Free-space optical (FSO) communication possesses the advantages of high security, large information capacity, high-speed transmission, small terminal size, low power consumption, easy and flexible deployment, etc.
Ming Li, Pengxin Zhang, Jiawei Han
doaj +1 more source
On the Performance of Millimeter Wave-based RF-FSO Links with HARQ Feedback
, 2016 This paper studies the performance of hybrid radio-frequency (RF) and free-space optical (FSO) links in the cases with and without hybrid automatic repeat request (HARQ).
Alouini, Mohamed-Slim +2 more
core +1 more source