Three dimensional beamforming; 3D beamforming; Cognitive SatCom; Terminal based Beamforming; Multiple LNB; Feed Array Reflector; Cognitive Radio; LCMV beamformer; Elevation beamforming; Blind approach; Database assisted approach; Non-exclusive Ka band; Satellite-terrestrial Coexistence
Résumé :
[en] Satellite communication (SatCom) is facing a spectrum scarcity problem due to the limited available exclusive spectrum and the high demand of the broadband satellite services.
In this context, there has been an increasing interest in the satellite community to exploit the non-exclusive Ka-band spectrum in order to enhance the spectral efficiency of future broadband
satellite systems. Herein, we propose a novel concept of enabling the spectral coexistence of satellite and terrestrial networks using three dimensional (3D) beamforming, which exploits the
elevation dimension in addition to the commonly used azimuth dimension. The proposed beamforming solution is employed in a Multiple-Input Low Noise Block Downconverter (MLNB) based Feed Array Reflector (FAR) in contrast to the widely used Uniform Linear Array (ULA) structure. Within the employed antenna structure, the performance of the proposed beamforming solution is evaluated considering different feed arrangements. Finally, a database-assisted approach and two blind approaches are suggested for the effective implementation of the proposed
solutions.
Disciplines :
Ingénierie électrique & électronique
Auteur, co-auteur :
SHARMA, Shree Krishna ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
CHATZINOTAS, Symeon ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Grotz, Joel; NewTec, Belgium
OTTERSTEN, Björn ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
3D Beamforming for Spectral Coexistence of Satellite and Terrestrial Networks
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