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User-Centric Beam Selection and Precoding Design for Coordinated Multiple-Satellite Systems
HA, Vu Nguyen; Duy H. N. Nguyen; MERLANO DUNCAN, Juan Carlos et al.
2024In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Peer reviewed
 

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Keywords :
Multibeam SATCOM, Linear Precoding, Coordinated Multiple Satellites, Satellite Association, Beam Selection
Abstract :
[en] This paper introduces a joint optimization framework for user-centric beam selection and linear precoding (LP) design in a coordinated multiple-satellite (CoMSat) system, employing a Digital-Fourier-Transform-based (DFT) beamforming (BF) technique. Regarding serving users at their target SINRs and minimizing the total transmit power, the scheme aims to efficiently determine satellites for users to associate with and activate the best cluster of beams together with optimizing LP for every satellite-to-user transmission. These technical objectives are first framed as a complex mixed-integer programming (MIP) challenge. To tackle this, we reformulate it into a joint cluster association and LP design problem. Then, by theoretically analyzing the duality relationship between downlink and uplink transmissions, we develop an efficient iterative method to identify the optimal solution. Additionally, a simpler duality approach for rapid beam selection and LP design is presented for comparison purposes. Simulation results underscore the effectiveness of our proposed schemes across various settings.
Disciplines :
Electrical & electronics engineering
Author, co-author :
HA, Vu Nguyen  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Duy H. N. Nguyen
MERLANO DUNCAN, Juan Carlos  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
GONZALEZ RIOS, Jorge Luis  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
VASQUEZ-PERALVO, Juan Andres ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
EAPPEN, Geoffrey ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
GARCES SOCARRAS, Luis Manuel  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Rakes Palisetty
CHATZINOTAS, Symeon  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
OTTERSTEN, Björn  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > PI Ottersten
External co-authors :
yes
Language :
English
Title :
User-Centric Beam Selection and Precoding Design for Coordinated Multiple-Satellite Systems
Publication date :
02 September 2024
Event name :
IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Event organizer :
IEEE
Event place :
Valencia, Spain
Event date :
2 September 2024
Audience :
International
Main work title :
IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Publisher :
IEEE, New York, United States
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 29 August 2024

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