• Corpus ID: 238744462

Joint Optimization of Beam-Hopping Design and NOMA-Assisted Transmission for Flexible Satellite Systems

  title={Joint Optimization of Beam-Hopping Design and NOMA-Assisted Transmission for Flexible Satellite Systems},
  author={Anyue Wang and Lei Lei and Eva Lagunas and Ana Isabel P{\'e}rez-Neira and Symeon Chatzinotas and Bj{\"o}rn E. Ottersten},
  • Anyue Wang, Lei Lei, +3 authors B. Ottersten
  • Published 13 October 2021
  • Computer Science, Engineering, Mathematics
  • ArXiv
Next-generation satellite systems require more flexibility in resource management such that available radio resources can be dynamically allocated to meet time-varying and non-uniform traffic demands. Considering potential benefits of beam hopping (BH) and non-orthogonal multiple access (NOMA), we exploit the time-domain flexibility in multi-beam satellite systems by optimizing BH design, and enhance the power-domain flexibility via NOMA. In this paper, we investigate the synergy and mutual… 

Figures and Tables from this paper


Joint Beam-Hopping Scheduling and Power Allocation in NOMA-Assisted Satellite Systems
This paper forms the joint BH scheduling and NOMA-based power allocation problem as mixed-integer non-convex programming, and reveals the exponential-conic structure for the original problem, and reformulate the problem to the format of mixed- integer conic programming (MICP), where the optimum can be obtained by exponential-complexity algorithms.
NOMA-Enabled Multi-Beam Satellite Systems: Joint Optimization to Overcome Offered-Requested Data Mismatches
A heuristic algorithm is proposed for the original problem, which iteratively updates the terminal-timeslot assignment and improves the overall OCTR performance, and results show that the proposed algorithm improves the max-min OCTR by 40.2% over orthogonal multiple access (OMA) in average.
Radio Resource Management Optimization of Flexible Satellite Payloads for DVB-S 2 Systems
The increasing demand for high-rate broadcast and multicast services over satellite networks has pushed for the development of High Throughput Satellites characterized by a large number of beams
Beam Hopping in Multi-Beam Broadband Satellite Systems: System Performance and Payload Architecture Analysis
When considering the inherent uncertainty of the broadband communication market evolution as well as the spatial non-uniform distribution of capacity requests through the satellite coverage,
Cooperative Beam Hopping for Accurate Positioning in Ultra-Dense LEO Satellite Networks
  • Yu Wang, Ying Chen, +4 authors Jun Wang
  • Computer Science
    2021 IEEE International Conference on Communications Workshops (ICC Workshops)
  • 2021
A novel cooperative beam hopping framework to adaptively tune beam layouts suitable for multi-satellite coordinated positioning and demonstrates that FBHCA can significantly improve CRLB performance over the benchmark scheme.
Offered capacity optimization mechanisms for multi-beam satellite systems
This paper investigates capacity optimization mechanisms for multi-beam satellite systems built on a realistic payload model and proposes Network Coding (NC) based techniques at the link layer to increase the offered capacity taking advantage of overlapping beam coverage.
Power Allocation in Multibeam Satellite Systems: A Two-Stage Multi-Objective Optimization
The solutions to the a priori accomplished traffic matching optimization are used to enhance the efficiency of the multi-objective metaheuristic method proposed and, consequently, of the multibeam satellite system.
Resource Optimization With Load Coupling in Multi-Cell NOMA
The basic idea is to prove that solving the joint optimization problem of power allocation, user pair selection, and time-frequency resource allocation amounts to solving a so-called iterated function without a closed form and it is proved that the algorithm approaches optimality with fast convergence.
Dynamic Beam Hopping Method Based on Multi-Objective Deep Reinforcement Learning for Next Generation Satellite Broadband Systems
This paper investigates the optimal policy for beam hopping in DVB-S2X satellite with multiple purposes of assuring the fairness of each beam services, minimizing the delay of real-time services transmission, and maximizing the throughput of non-instant services transmission.
Precoded Cluster Hopping in Multi-Beam High Throughput Satellite Systems
A high throughput satellite (HTS) system that employs BH in conjunction with precoding is considered and the concept of Cluster-Hopping (CH) that seamlessly combines the BH and precoding paradigms and utilize their individual competencies is proposed.