[en] This paper explores multi-connectivity (MC) techniques to enhance spectral efficiency (SE) of multi-tiered non-terrestrial networks (NTNs) in a pay-as-you-go (PAYG) service model, in which subscribers pay based on the volume of data consumed. The key objective is to maximize SE, and a resource allocation architecture is proposed to incorporate a multi-tier NTN with a hybrid gateway station (HGS) that manages the orbital satellites through co-located gateway antennas. This architecture operates with two different waveforms: 5G New Radio (NR) and DVB-S2X, both adapted into the 3rd Generation Partnership Project (3GPP) protocol stack, allowing for carrier capacity merging from all links with varying waveforms at the receiving user.
To this end, a non-convex combinatorial optimization problem is formulated with inequality constraints and solved using a multi-agent reinforcement learning (MARL) aided resource allocation algorithm. This algorithm functions using the channel quality indicator (CQI) obtained for the different waveforms and under two channel conditions of clear sky (CS) and rain fading (RFD), to intelligently configure a resource allocation pattern which maximizes SE. The proposed algorithm is compared to proportional fairness (PF) and bottleneck max fairness (BMF) algorithms, and it outperforms in terms of SE by 11.16% and 24.15%, respectively.
Centre de recherche :
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM - Signal Processing & Communications
Disciplines :
Sciences informatiques
Auteur, co-auteur :
DAZHI, Michael ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Hayder Al-Hraishawi
Bhavani Shankar; University of Luxembourg
Symeon Chatzinotas; University of Luxembourg
Co-auteurs externes :
no
Langue du document :
Anglais
Titre :
MARL-aided Spectral Efficiency Maximization in Multi-Tier NTN Operating Multi-Connectivity with Different Waveforms for PAYG Service
HE - 101131481 - SOVEREIGN - distributed ledger technologies and user-driven automation towards self-SOVEREIGN mobile data access in beyond 5G networks
Intitulé du projet de recherche :
R-AGR-3929 - IPBG19/14016225/INSTRUCT - SES - CHATZINOTAS Symeon
Organisme subsidiant :
FNR - Fonds National de la Recherche Union Européenne
M. M. Azari et al., "Evolution of Non-Terrestrial Networks From 5G to 6G: A Survey, " IEEE Communications Surveys Tutorials, vol. 24, no. 4, pp. 2633-2672, Aug. 2022.
H. Al-Hraishawi, H. Chougrani, S. Kisseleff, E. Lagunas, and S. Chatzinotas, "A Survey on Nongeostationary Satellite Systems: The Communication Perspective, " IEEE Communications Surveys Tutorials, vol. 25, no. 1, pp. 101-132, Aug. 2022.
G. Geraci, D. Lopez-Perez, M. Benzaghta, and S. Chatzinotas, "Integrating Terrestrial and Non-Terrestrial Networks: 3D Opportunities and Challenges, " IEEE Communications Magazine, vol. 61, no. 4, pp. 42-48, Apr. 2023.
H. Al-Hraishawi, M. Minardi, H. Chougrani, O. Kodheli, J. F. M. Montoya, and S. Chatzinotas, "Multi-layer space information networks: Access design and softwarization, " IEEE Access, vol. 9, pp. 158 587-158 598, Nov. 2021.
M. Lopez, S. B. Damsgaard, I. Rodriguez, and P. Mogensen, "An Empirical Analysis of Multi-Connectivity between 5G Terrestrial and LEO Satellite Networks, " in IEEE Globecom Workshops (GC Wkshps), Dec. 2022, pp. 1115-1120.
M. N. Dazhi, H. Al-Hraishawi, B. Shankar, and S. Chatzinotas, "Terminal-Aware Multi-Connectivity Scheduler for Uplink Multi-Layer Non-Terrestrial Networks, " in IEEE Globecom Workshops (GC Wkshps), Dec. 2022, pp. 1133-1139.
M.-T. Suer, C. Thein, H. Tchouankem, and L. Wolf, "Multi-Connectivity as an Enabler for Reliable Low Latency Communications-An Overview, " IEEE Communications Surveys Tutorials, vol. 22, no. 1, pp. 156-169, Oct. 2019.
H. Al-Hraishawi, E. Lagunas, and S. Chatzinotas, "Traffic Simulator for Multibeam Satellite Communication Systems, " in 2020 10th Advanced Satellite Multimedia Systems Conference and the 16th Signal Processing for Space Communications Workshop (ASMS/SPSC), Dec. 2020, pp. 1-8.
Q. Zhai, M. Bolíc, Y. Li, W. Cheng, and C. Liu, "A Q-Learning-Based Resource Allocation for Downlink Non-Orthogonal Multiple Access Systems Considering QoS, " IEEE Access, vol. 9, pp. 72 702-72 711, May 2021.
S. Zheng, X. Zhang, P. Wang, and W. Wang, "Channel and Power Allocation for Uplink Multibeam LEO Satellite System with loT Services, " in 2023 IEEE International Conference on Communications Workshops (ICC Workshops), Oct. 2023, pp. 1547-1552.
What is Pay-As-You-Go Pricing? | DealHub. Accessed: 2023-10-22. [Online]. Available: Https: //dealhub. io/glossary/pay-as-you-go-pricing/
3rd Generation Partnership Project (3GPP), "TS 138 300-V17. 0. 0-5G; NR and NG-RAN Overall description; Stage-2 (3GPP TS 38. 300 version 17. 0. 0 Release 17), " May 2022, TS 138 300.
A. Guidotti, A. Vanelli-Coralli, A. Mengali, and S. Cioni, "Non-Terrestrial Networks: Link Budget Analysis, " in 2020 IEEE International Conference on Communications (ICC), Jul. 2020, pp. 1-7.
European Telecommunications Standards Institute (ETSI), "Digital Video Broadcasting (DVB): Second generation framing structure, channel coding and modulation systems for broadcasting, interactive services, news gathering and other broadband satellite applications; part 2: DVBS2X. " Standard, Aug. 2020, EN 302 307-2.
N. Okati, T. Riihonen, D. Korpi, I. Angervuori, and R. Wichman, "Downlink coverage and rate analysis of low earth orbit satellite constellations using stochastic geometry, " IEEE Transactions on Communications, vol. 68, no. 8, pp. 5120-5134, Aug. 2020.
J. Liu, Z. Shi, S. Zhang, and N. Kato, "Distributed Q-Learning Aided Uplink Grant-Free NOMA for Massive Machine-Type Communications, " IEEE Journal on Selected Areas in Communications, vol. 39, no. 7, pp. 2029-2041, Jul. 2021.
D. Tran, S. K. Sharma, S. Chatzinotas, and I. Woungang, "Learning-Based Multiplexing of Grant-Based and Grant-Free Heterogeneous Services with Short Packets, " in 2021 IEEE Global Communications Conference (GLOBECOM), Dec 2021, pp. 01-06.
M. Zhang, Y. Guo, L. Salaun, C. W. Sung, and C. S. Chen, "Proportional Fair Scheduling for Downlink mmWave Multi-User MISO-NOMA Systems, " IEEE Transactions on Vehicular Technology, vol. 71, no. 6, pp. 6308-6321, Jun. 2022.
T. Zhu, X. Qin, L. Chen, X. Chen, and G. Wei, "wBBR: A Bottleneck Estimation-Based Congestion Control for Multipath TCP, " in 2018 IEEE 88th Vehicular Technology Conference (VTC-Fall), Aug. 2018, pp. 1-5.
