Results 91 to 100 of about 71,373 (268)
The Application of Telemedicine in Surgery
Med Research, EarlyView.This figure provides an overview of the content presented in this article. Telemedicine is integrated throughout the entire surgical workflow, with distinct applications across the preoperative, intraoperative, and postoperative phases. These applications are enabled by a suite of supporting technologies, while the associated implementation challenges ...
Yufan Yang +8 more
wiley +1 more source
EURASIP Journal on Wireless Communications and Networking, 2006 Generic ultra-wideband (UWB) spread-spectrum system performance is evaluated in centralized and distributed spatial topologies comprising square-shaped indoor cells.
Pirinen Pekka
doaj +2 more sources
Moisture inversions in the central Arctic: Product assessment and long‐wave radiative effect
Quarterly Journal of the Royal Meteorological Society, EarlyView.This study evaluates the integrated water vapour and the vertical distribution of water vapour of state‐of‐the‐art reanalyses, weather forecast models, and ground‐ and space‐based remote‐sensing products in the central Arctic. A particular focus lies on the representation of humidity inversions and the quantification of the long‐wave radiative effect ...
Andreas Walbröl +6 more
wiley +1 more source
Three‐Year Propagation Experiment at Ku‐, Ka‐, and Q‐Band in French West Indies
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT From January 2021 to December 2023, the Office National d'Etudes et de Recherches Aérospatiales (ONERA) and the Centre National d'Etudes Spatiales (CNES) conducted a three‐year Earth‐space propagation measurement campaign in Guadeloupe. The experiment used beacon receivers deployed in Pointe‐à‐Pitre airport to record signals at 11.2, 19.7, and
Jean‐Pascal Monvoisin +3 more
wiley +1 more source
Outage performance of multi-RIS-assisted NOMA system with imperfect serial interference cancellation
物联网学报Considering the practical communication environments, the outage performance and the throughput were investigated for multiple reconfigurable intelligent surfaces (RIS) assisted non-orthogonal multiple access (NOMA) system with imperfect serial ...
Jiaqing QIN, Liping LUO, Jing ZHOU
doaj +2 more sources
Preprocessing Procedure for Propagation Measurements on MEO Satellite Links
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT This paper presents a software tool designed for preprocessing data from an experimental campaign aimed at characterizing the tropospheric propagation channel using Medium Earth Orbit (MEO) satellites. The collected data provide critical insights into the channel in scenarios involving continuous variations in azimuth and elevation, along with
Marlene Brás +2 more
wiley +1 more source
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada +4 more
wiley +1 more source
Education in a Changing Climate: A Systematic Review for Low and Middle‐Income Countries (LMICs)
Sustainable Development, EarlyView.ABSTRACT Climate change is a major global challenge that affects many aspects of human life and hinders progress on the United Nations (UN) Sustainable Development Goals (SDGs). One area that has not received enough attention is its impact on children's education in low‐ and middle‐income countries (LMICs), which are especially vulnerable to ...
Afshan Ameer, Rami Ghannam
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Optimization scheme for the SWIPT-NOMA opportunity cooperative system
Tongxin xuebao, 2020 In order to improve the spectrum efficiency and performance of the simultaneous wireless information and power transfer (SWIPT) system,the non-orthogonal multiple access (NOMA) technology was introduced to construct the SWIPT-NOMA opportunistic relay ...
Taoshen LI, Qianli NING, Zhe WANG
doaj +2 more sources
Outage Performance Analysis of Improper Gaussian Signaling for Two-User Downlink NOMA Systems with Imperfect Successive Interference Cancellation. [PDF]
Entropy (Basel), 2023 Liu Y, Gao H, Cheng H, Xia Y, Pei W.
europepmc +1 more source