Results 131 to 140 of about 158,786 (339)

Integrated LEO Constellation and In‐Cabin Distribution System for Continuous Aircraft 5G Connectivity

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, Victor Monzon Baeza, Carlos Horcajo Fernández de Gamboa, Rocío Serrano Camacho, Carlos Monzo   +4 more
wiley   +1 more source

Insights From the Alphasat Aldo Paraboni Experiment at Tito Scalo and Spino d'Adda: Characterizing Scintillation and Rain Attenuation at Ka‐ and Q‐Band Frequencies

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT We present experimental results on the relationship between rain attenuation and simultaneous scintillation during rain events, based on beacon signal measurements at 19.7 (Ka‐band) and 39.4 GHz (Q‐band) from the geosynchronous Alphasat satellite (25° E), received at two Italian ground stations, Spino d'Adda (42.1° slant path) and Tito Scalo ...
Miles Turner, Alef Comisso, Carlo Riva, Lorenzo Luini, Giuseppe Codispoti, Giorgia Parca   +5 more
wiley   +1 more source

FOREIGN DISCOURSE AS A TOOL OF STATE STRATEGIC COMMUNICATION: CONCEPTUAL FOUNDATION

Інтегровані комунікації
An in-depth analysis of international broadcasting as one of the primary instruments of state strategic communications in the context of global digitalization and information warfare is conducted in the article.
Maryna Skazhennyk
doaj   +1 more source

Geometric models, antenna gains, and protection ratios as developed for BC SAT-R2 conference software [PDF]

Mathematical models used in the software package developed for use at the 1983 Regional Administrative Radio Conference on broadcasting satellites. The models described are those used in the Spectrum Orbit Utilization Program (SOUP) analysis.
Miller, E. F.
core   +1 more source

Low‐Complexity Hybrid Beamforming for LEO Satellites: Beam Update Rate Analysis and Advanced Adaptive Precoding

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Low Earth Orbit (LEO) satellite constellations offer unprecedented opportunities for global broadband connectivity but pose significant beamforming challenges due to rapid platform motion and stringent onboard hardware constraints. Fully digital architectures, while optimal in theory, remain impractical for satellite payloads, motivating ...
Mohammad Momani, Thomas Delamotte, Andreas Knopp   +2 more
wiley   +1 more source

Three Dimensional Concatenated Codes in OFDM Transmission System under a Rayleigh Fading Channel with Carrier Interference

Journal of Engineering and Sustainable Development, 2008
Orthogonal frequency division multiplexing (OFDM) or multicarrier transmission has been shown to be an effective technique to combat multipath fading in wireless Communications.
Ghanim Abd AlKareem
doaj  

Institutional Transformation and Digital Adaptation of Radio Republik Indonesia (RRI) Medan as a Public Broadcasting Institution (1998-2014)

Journal of Mathematics Instruction, Social Research and Opinion
This study analyzes the institutional transformation of Radio Republik Indonesia (RRI) Medan, a public broadcasting institution, during the post-Reformasi period, focusing on how the organization responded to declining relevance and competitiveness amid
Isra' Pasu Mutiara, Budi Agustono, Pujiati Pujiati   +2 more
doaj   +1 more source

Sustainability: The Forgotten Arena of eSports Research—A Systematic Literature Review From an ESG Perspective

Sustainable Development, EarlyView.
ABSTRACT Despite the growth of eSports, the sector faces critical challenges related to its sustainability. This research analyzes these issues from an environmental, social, and governance (ESG) perspective. This paper consists of a systematic literature review on eSports and its implications for sustainability.
M. Ertz, C. Ouerghemmi, Y. Laghrib, M. Kordi, J. Bousquet, A. Kazemipour   +5 more
wiley   +1 more source

Sustainable Foreign Direct Investment in Emerging Markets: The Institutional Drivers of Firms' Climate Action

Sustainable Development, EarlyView.
ABSTRACT This study examines how home‐ and host‐country institutions jointly shape the impact of foreign direct investment (FDI) on firms' climate action commitments (CAC) in emerging markets. Drawing on New Institutional Economics and Varieties of Capitalism, we conceptualize FDI as a mechanism of institutional transmission through which multinational
Jose Pla‐Barber, David Tobón‐Orozco
wiley   +1 more source

Industry 5.0 for Sustainable Healthcare Services: Analyzing the Prospects and Obstacles for the Indian Healthcare System

Sustainable Development, EarlyView.
ABSTRACT The fifth industrial revolution (I5.0), which is based on the utilization of interconnected data for efficient resource usage in meeting human requirements, proposes efficient solutions to resource constraint situations. However, the transition to I5.0 in the health sector is not easy and has to face several obstacles.
Ajay Jha, Dindayal Agrawal, Reena Agarwal, Anupam Saxena, Ashish Dwivedi, Sharfuddin Ahmed Khan   +5 more
wiley   +1 more source