[en] Satellite beam hopping provides time- domain flexibility with proven benefits in improving supplied capacity-demand matching while reducing the power and mass of the satellite payload. However, due to the combinatorial properties of beam scheduling and coupling in the time domain, resource optimization of beam hopping can be challenging. This paper presents an efficient optimization framework for addressing complex beam-hopping problems from the perspective of frame- level planning. In the framework, we first introduce continuous variables to represent each beam’s timeslot usage of a frame (or each beam’s illumination probability at an arbitrary timeslot), thereby converting the mixed- integer problem into a continuous one with a smaller problem scale. Based on optimized power allocation and timeslot usage (or illumination probability), we then map continuous solutions to binary ones and determine the beam-timeslot scheduling on a demand-aware basis. Numerical results demonstrate the feasibility of the pro- posed framework, with benefits including power saving, complexity reduction, and improved capacity-demand matching.
Disciplines :
Electrical & electronics engineering
Author, co-author :
CHEN, Lin ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust > SigCom > Team Eva LAGUNAS
WANG, Anyue ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust > SigCom > Team Symeon CHATZINOTAS
LAGUNAS, Eva ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
lei, lei; Xi'an Jiaotong University
CHATZINOTAS, Symeon ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
External co-authors :
yes
Language :
English
Title :
Power Allocation and Beam Illumination Design for Time-Flexible Satellite Systems
Publication date :
2024
Event name :
IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks
Event place :
Athens, Greece
Event date :
21–23 October 2024
Main work title :
Power Allocation and Beam Illumination Design for Time-Flexible Satellite Systems
Publisher :
IEEE International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, Athens, Greece
Peer reviewed :
Peer reviewed
Focus Area :
Sustainable Development
Development Goals :
9. Industry, innovation and infrastructure
FnR Project :
FNR13696663 - Resource Optimization For Next Generation Of Flexible Satellite Payloads, 2019 (01/03/2020-31/08/2023) - Eva Lagunas
Name of the research project :
FNR FlexSAT
Funders :
FNR - Fonds National de la Recherche
Funding number :
FNR13696663
Funding text :
This work has been partially supported by the Luxembourg National Research Fund (FNR) under the project FlexSAT (C19/IS/13696663) and the project SmartSpace (C21/IS/16193290). For the purpose of open access, the author has applied a Creative Commons Attribution 4.0 International (CC BY 4.0) license to any Author Accepted Manuscript version arising from this submission.
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