Results 71 to 80 of about 11,238 (217)
RF/FSO and THz/FSO Relaying Systems
This chapter delves into the potential of relay-assisted transmission to alleviate fading in free-space optical (FSO) systems. We focus on evaluating the efficacy of a dual-hop relay system for RF (millimeter-wave and terahertz)/FSO (RF/FSO) communications in the presence of pointing errors.
Alimi, siaka A., Monteiro, Paulo P.
openaire +1 more source
Outage probability analysis of maritime FSO links
Frontiers in Communications and Networks, 2022 In this paper, the outage performance of the maritime free-space optical (FSO) communication system is analyzed, and a new maritime FSO link configuration is presented. The channel model for maritime FSO link includes the combined effect of turbulence, pointing error, angle-of-arrival (AOA) fluctuations, and attenuation.
Yalçın Ata, Mohamed-Slim Alouini
openaire +4 more sources
Price Setting before and during the Pandemic: Evidence from Swiss Consumer Prices
Journal of Money, Credit and Banking, EarlyView.Abstract Using microdata underlying the Swiss consumer price index from 2008 to 2025, we document new features of price rigidity and assess their implications for inflation dynamics. The frequency of price changes increased in the decade before the pandemic, driven by items shifting to online price collection, as confirmed by causal identification from
BARBARA RUDOLF, PASCAL SEILER
wiley +1 more source
Performance Analysis of Hybrid SAG-FSO/RF Satellite Communication System
, 2022 Satellite constellations have become a promising solution for future Terabits/s connectivity. However, conventional radio frequency (RF) communication links are unable to achieve such high throughput due to the limited spectrum available.
ramy samy (12437502)
core +1 more source
Diseño de un sistema óptico-inalámbrico orientado al análisis de la tecnología free space optics
MaskayEn el presente artículo, se realiza un estudio orientado a las comunicaciones ópticas en el espacio libre (Free Space Optics - FSO), al identificar sus principales beneficios y limitaciones.
Jhandry Torres-Rojas +1 more
doaj +1 more source
Non-orthogonal multiple access for FSO backhauling [PDF]
2018 IEEE Wireless Communications and Networking Conference (WCNC), 2018 This paper has been submitted to IEEE WCNC ...
Marzieh Najafi +4 more
openaire +2 more sources
Obesity Reviews, EarlyView.ABSTRACT Bariatric surgery (BS) has short‐ and medium‐term benefits in improving metabolic syndrome (MetS) components, but its long‐term impact remains incompletely characterized. This systematic review and meta‐analysis aimed to quantify the long‐term effects of BS (≥ 5 years) on fasting blood glucose (FBG), HDL cholesterol, triglycerides (TG), waist ...
Bernardo Paz Barboza +7 more
wiley +1 more source
, 2010 This paper studies the possibility of using axicons in Free Space Optics (FSO) systems. The behavior of the pseudo- Bessel beams generated by "logarithmic" and "linear" axicons, with or without stops, was analyzed through the Huygens-Fresnel integral of diffraction in cylindrical coordinates.
Ambrosio, Leonardo A. +2 more
openaire +2 more sources
Bureaucratic Politics and Aid Allocation: Evidence From the US Agency for International Development
Regulation &Governance, EarlyView.ABSTRACT We examine the impact of bureaucratic politics within the US Agency for International Development on the allocation of its development assistance. Existing studies of aid allocation have focused on donor interests, recipient needs, and recipient merit without accounting for the bureaucratic decision‐making process that helps determine these ...
Gus Greenstein, Mirko Heinzel
wiley +1 more source
Machine Learning Techniques In Wdm-Fso Systems: Comparative Study
Syrian Journal for Science and InnovationFree space optical (FSO) communication has recently received much attention from researchers due to its great advantages. FSO offers large bandwidth, ease of installation and deployment, security compared to other wireless communications, and FSO systems
Ranim Younes, Mohammad Nassr
doaj +1 more source