Results 61 to 70 of about 86,321 (187)
Performance Analysis of PCFICH and PDCCH LTE Control Channels [PDF]
, 2014 Control channels play a key role in the evaluation of mobile system performance. The purpose of our paper is to evaluate the performance of the control channels implementation in the Long Term Evolution (LTE) system.
Hanus, S., Milos, J.
core +1 more source
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT As non‐terrestrial networks (NTNs) become integral to future 6G systems, ensuring seamless connectivity and service continuity over low Earth orbit (LEO) satellite constellations is essential. This work investigates the impact of open radio access network (RAN) functional splits on handover performance in NTNs, focusing on minimizing service ...
Siva Satya Sri Ganesh Seeram +3 more
wiley +1 more source
Satellite Downlink Coherent Laser Communications
, 2016 Peer ...
Belmonte Molina, Aniceto, Kahn, J. M.
openaire +3 more sources
Launch support: Managing complementor bottlenecks in the disruptive innovation of small satellites
Strategic Management Journal, EarlyView.Abstract Research Summary Through both qualitative and quantitative analyses of large‐rocket providers' support for small‐satellite manufacturers before the emergence of small rockets, we examine how disruptors to an incumbent ecosystem gain support from complementors of the incumbent technology.
Yue Song, Yue Maggie Zhou, Xiaoping Zhao
wiley +1 more source
Cooperative Reception of Multiple Satellite Downlinks
Sensors, 2022 Popular small satellites host individual sensors or sensor networks in space but require ground stations with directional antennas on rotators to download sensors’ data. Such ground stations can establish a single downlink communication with only one satellite at a time with high vulnerability to system outages when experiencing severe channel ...
Haidar N. Al-Anbagi, Ivo Vertat
openaire +3 more sources
The impact of the educational system using immediate feedback in learning the skills of numbers and sending from the bottom volleyball [PDF]
مجلة الرافدين للعلوم الرياضية, 2019 The research aims to uncover the following: 1-The impact of the curriculum using the immediate feedback in learning the skills of numbers and the transmission from the bottom volleyball 2-Differences in the remote selection between the two groups in the ...
Shahla Abdullah
doaj +1 more source
An Ecosystem to Develop Multi‐Agent Systems in Real‐World IoT Applications
Software: Practice and Experience, EarlyView.ABSTRACT Software agents and multi‐agent systems are critical components in the development of distributed autonomous systems, as they exhibit a wide range of “intelligence,” from reactive behaviors to advanced reasoning and planning. Integrating these capabilities into multi‐agent systems enables distributed artificial intelligence, a programming ...
Davide Carnemolla +3 more
wiley +1 more source
CAAI Transactions on Intelligence Technology, EarlyView.ABSTRACT Networked control systems (NCSs) often suffer from performance degradation due to limited communication bandwidth, which can cause data transmission conflicts and packet loss. Existing scheduling strategies may fail to simultaneously meet the real‐time requirements and the importance of multisensor data, and they are particularly vulnerable ...
Da Chen +5 more
wiley +1 more source
Intersatellite and Downlink Agile Attitude Maneuvers
Applied Sciences, 2023 This research is focused on the problem of agile attitude maneuvering, aimed at the precise pointing of a satellite forming a typical constellation in low Earth orbit. We consider two different operational scenarios: (a) pointing toward a specific ground station, located on the Earth surface (for downlink data routing), and (b) pointing toward a ...
Massimo Posani +2 more
openaire +3 more sources
Downlink Space-Frequency Preequalization Techniques for TDD MC-CDMA Mobile Radio Systems
EURASIP Journal on Wireless Communications and Networking, 2004 The paper considers downlink space-frequency preequalizations techniques for time division duplex (TDD) MC-CDMA. We consider the use of antenna arrays at the base station (BS) and analytically derive different preequalization schemes for two different ...
Silva Adão, Gameiro Atílio
doaj +2 more sources