Results 61 to 70 of about 14,789 (193)
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 +2 more
wiley +1 more source
Jaume Vernet i Llobet, «Normalització lingüística i accés a la funció pública»
Revista de Llengua i Dret - Journal of Language and Law, 1992 .
Oriol Ramon i Mimó
doaj
DIELECTRIC RESONATOR ANTENNAS FOR 5G: A REVIEW FOCUSING ON MIMO APPLICATIONS [PDF]
Proceedings on Engineering SciencesThe design of antennas for Fifth Generation (5G) technology demands high data rates, increased capacity, and improved reliability. Microstrip patch antennas have commonly been used due to their low cost and compact size; however, they suffer from limited
Peter Adejumo +3 more
doaj +1 more source
ETRI Journal, 2023 In mobile communication, the most exploratory technology of fifth generation is massive multiple input multiple output (MIMO). The minimum mean square error and zero forcing based linear detectors are used in multiuser detection for MIMO single-carrier ...
Nalamani G. Praveena +3 more
doaj +1 more source
A comparison of MIMO-OFDM and MIMO-SCFDE in WLAN environments [PDF]
GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489), 2004 Recent developments in orthogonal frequency division multiplexing (OFDM) and single-carrier frequency-domain equalization (SCFDE) have sparked debate about the superiority of one method over the other. In this paper, we further this debate by comparing the theoretical performance of OFDM and SCFDE when each is implemented in one of two different ...
Justin P. Coon +5 more
openaire +2 more sources
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT In this paper, the correlation learning estimation and adaptive reduction (CLEAR) of interference, an adaptive, blind and transparent interference compensation method applied in a wideband dual‐channel receiver, is studied for a pair of independent satellite multi‐connectivity links, using the same carrier frequency and signal bandwidth in use
Svilen Dimitrov
wiley +1 more source
Mercator: dret i legislació lingüístics
Revista de Llengua i Dret - Journal of Language and Law, 1992 .
Oriol Ramón i Mimó
doaj
Key Technical Fields and Future Outlooks of Space Manipulators: A Survey
SmartBot, EarlyView.This paper systematically reviews the technological development of space manipulators, emphasizing the unique challenges posed by space environments. It examines four areas: structural design, modeling, planning, and control, while introducing typical ground test platforms.
Gang Chen +12 more
wiley +1 more source
Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows
IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li +7 more
wiley +1 more source