Results 21 to 30 of about 11,903 (156)

A Beam Search-Based Channel Allocation Method for Interference Mitigation of NGSO Satellites with Multi-Beam Antennas

Aerospace, 2022
In the past few years, non-geostationary orbit (NGSO) satellite communication constellations have regained popularity due to their conspicuous advantages.
Haojie Zhang, Di Ren, Fanghua Jiang
doaj   +1 more source

On the Achievable Rates for the Return-Link of Multi-Beam Satellite Systems Using Successive Interference Cancellation

, 2011
This paper investigates the theoretically reachable rates in the return-link of multi-user multi-beam satellite systems. The return-link can actually be analyzed by means of multiple-input multiple-output signal processing techniques. While MIMO inspired
Michael Joham, Matteo Berioli, Rossetto, Francesco, Francesco Rossetto, Boussemart, Vincent, Berioli, Matteo, Joham, Michael, Vincent Boussemart   +7 more
core   +1 more source

Application of PS-InSAR and Diagnostic Train Measurement Techniques for Monitoring Subsidence in High-Speed Railway in Konya, Türkiye

Infrastructures
Large-scale man-made linear structures like high-speed railway lines have become increasingly important in modern life as a faster and more comfortable transportation option.
Gokhan Kizilirmak, Ziyadin Cakir
doaj   +1 more source

Optical High-Capacity Satellite Downlinks via High-Altitude Platform Relays

, 2007
Earth-observation (EO) satellite missions produce a large amount of data using high-resolution optical or radar sensors. During the last decades the amount of data has steadily increased due to improved sensor technologies with increased temporal ...
Florian Moll, Bischl, Hermann, Markus Knapek, Giggenbach, Dirk, Joachim Horwath, Horwath, Joachim, Courville, Nicolas, Knapek, Markus, Bernd Epple, Moll, Florian, Nicolas Courville, Hermann Bischl, Epple, Bernhard, Dirk Giggenbach   +13 more
core   +1 more source

Modulation Format Identification in a Satellite to Ground Optical Wireless Communication Systems Using a Convolution Neural Network

Applied Sciences, 2022
The satellite-to-ground communication system is a significant part of future space communication networks. The free-space optical (FSO) communication technique is a prospective solution for satellite-to-ground communication.
Yucong Gu, Zhiyong Wu, Xueliang Li, Ruotong Tian, Shuang Ma, Tao Jia   +5 more
doaj   +1 more source

Performance Assessment using ACM in DVB-S2/Advanced DVB-RCS Satellite Systems

, 2009
This paper presents the benefits of using adaptive coding and modulation in DVB-S2/advanced DVB-RCS satellite systems. The results are based on a satellite system simulator which was developed during an ESA study.
Boussemart, Vincent, H. Brandt, Brandt, Hartmut, V. Boussemart   +3 more
core   +1 more source

Investigation of the effects of cloud attenuation on satellite communication systems [PDF]

, 2012
The aim of this project is to investigate the attenuation due to clouds at 20- 50GHz; to develop an accurate long-term prediction model of cloud attenuation applicable to slant-path links and evaluate the impact of cloud attenuation dynamics on the ...
Alawadi, Tareq A.
core  

On call admission control and handover management in multimedia LEO satellite systems

, 2013
11 S.Low earth orbit (LEO) satellite systems gained considerable interest in the past decade and were expected to be instrumental in future telecommunications systems.
Pavlidou, Fotini-Niovi, Todorova, Petia, Karapantazis, Stylios   +2 more
core   +1 more source

A new approach to develop and simulate future satellite systems

, 2022
Paper 2284, 4 S.Satellite networks still play an important role for communication especially with respect to disaster cases. But nevertheless the pressure to reduce development and deployment cost are still present.
Brandt, Hartmut, Krepel, Falco
core   +1 more source

Enhancing transport layer in satellite systems

, 2009
Satellite networks play a fundamental role in the provision of a broadband and global Internet access. Nonetheless, features of satellite systems imply worse performance of transport protocols, actually more suitable for wired terrestrial networks.
Roseti C., Zampognaro F., Savone G., Luglio M.   +3 more
core   +1 more source