Max-Min Fairness Beamforming with Hierarchical Rate Splitting for Multibeam Satellite System

Yuyan Ren; Meilin Xu; Yunkai Guo; Qiling Gao; Chengzhao Shan; Yongkui Ma

doi:10.1109/VTC2025-Fall65116.2025.11309936

Max-Min Fairness Beamforming with Hierarchical Rate Splitting for Multibeam Satellite System

Yuyan Ren^*
, Meilin Xu
, Yunkai Guo
, Qiling Gao
, Chengzhao Shan
, Yongkui Ma

^*Corresponding author for this work

School of Electronics and Information Engineering, Harbin Institute of Technology
College of Information and Communication Engineering, Harbin Engineering University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The application of rate-splitting multiple access (RSMA) with robust interference management capabilities in multibeam satellite system has attracted significant attention. To ensure rate performance across all users while supporting diverse information services, including broadcast, multicast, and unicast transmissions, this paper proposes a transmission scheme based on hierarchical rate-splitting (HRS) aiming to achieve max-min fairness (MMF) in a multibeam satellite system. We also introduce an improved iterative optimization (IO) algorithm based on weighted minimum mean square error (WMMSE) to solve the non-convex minimum rate maximization problem. Moreover, both shortest distance and strongest channel gain user grouping methods are employed with flexible user number per group. Simulation results show that the proposed transmission scheme outperforms the conventional schemes.

Original language	English
Title of host publication	2025 IEEE 102nd Vehicular Technology Conference, VTC 2025-Fall - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9798331503208
DOIs	https://doi.org/10.1109/VTC2025-Fall65116.2025.11309936
State	Published - 2025
Externally published	Yes
Event	2025 IEEE 102nd Vehicular Technology Conference, VTC 2025 - Chengdu, China Duration: 19 Oct 2025 → 22 Oct 2025

Publication series

Name	IEEE Vehicular Technology Conference
ISSN (Print)	1090-3038

Conference

Conference	2025 IEEE 102nd Vehicular Technology Conference, VTC 2025
Country/Territory	China
City	Chengdu
Period	19/10/25 → 22/10/25

Keywords

beamformer design
hierarchical Rate-Splitting
max-min Fairness
multibeam satellite communications

Access to Document

10.1109/VTC2025-Fall65116.2025.11309936

Cite this

Ren, Y., Xu, M., Guo, Y., Gao, Q., Shan, C., & Ma, Y. (2025). Max-Min Fairness Beamforming with Hierarchical Rate Splitting for Multibeam Satellite System. In 2025 IEEE 102nd Vehicular Technology Conference, VTC 2025-Fall - Proceedings (IEEE Vehicular Technology Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTC2025-Fall65116.2025.11309936

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title = "Max-Min Fairness Beamforming with Hierarchical Rate Splitting for Multibeam Satellite System",

abstract = "The application of rate-splitting multiple access (RSMA) with robust interference management capabilities in multibeam satellite system has attracted significant attention. To ensure rate performance across all users while supporting diverse information services, including broadcast, multicast, and unicast transmissions, this paper proposes a transmission scheme based on hierarchical rate-splitting (HRS) aiming to achieve max-min fairness (MMF) in a multibeam satellite system. We also introduce an improved iterative optimization (IO) algorithm based on weighted minimum mean square error (WMMSE) to solve the non-convex minimum rate maximization problem. Moreover, both shortest distance and strongest channel gain user grouping methods are employed with flexible user number per group. Simulation results show that the proposed transmission scheme outperforms the conventional schemes.",

keywords = "beamformer design, hierarchical Rate-Splitting, max-min Fairness, multibeam satellite communications",

author = "Yuyan Ren and Meilin Xu and Yunkai Guo and Qiling Gao and Chengzhao Shan and Yongkui Ma",

note = "Publisher Copyright: {\textcopyright} 2025 IEEE.; 2025 IEEE 102nd Vehicular Technology Conference, VTC 2025 ; Conference date: 19-10-2025 Through 22-10-2025",

year = "2025",

doi = "10.1109/VTC2025-Fall65116.2025.11309936",

language = "英语",

series = "IEEE Vehicular Technology Conference",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2025 IEEE 102nd Vehicular Technology Conference, VTC 2025-Fall - Proceedings",

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Ren, Y, Xu, M, Guo, Y, Gao, Q, Shan, C & Ma, Y 2025, Max-Min Fairness Beamforming with Hierarchical Rate Splitting for Multibeam Satellite System. in 2025 IEEE 102nd Vehicular Technology Conference, VTC 2025-Fall - Proceedings. IEEE Vehicular Technology Conference, Institute of Electrical and Electronics Engineers Inc., 2025 IEEE 102nd Vehicular Technology Conference, VTC 2025, Chengdu, China, 19/10/25. https://doi.org/10.1109/VTC2025-Fall65116.2025.11309936

Max-Min Fairness Beamforming with Hierarchical Rate Splitting for Multibeam Satellite System. / Ren, Yuyan; Xu, Meilin; Guo, Yunkai et al.
2025 IEEE 102nd Vehicular Technology Conference, VTC 2025-Fall - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2025. (IEEE Vehicular Technology Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Max-Min Fairness Beamforming with Hierarchical Rate Splitting for Multibeam Satellite System

AU - Ren, Yuyan

AU - Xu, Meilin

AU - Guo, Yunkai

AU - Gao, Qiling

AU - Shan, Chengzhao

AU - Ma, Yongkui

PY - 2025

Y1 - 2025

N2 - The application of rate-splitting multiple access (RSMA) with robust interference management capabilities in multibeam satellite system has attracted significant attention. To ensure rate performance across all users while supporting diverse information services, including broadcast, multicast, and unicast transmissions, this paper proposes a transmission scheme based on hierarchical rate-splitting (HRS) aiming to achieve max-min fairness (MMF) in a multibeam satellite system. We also introduce an improved iterative optimization (IO) algorithm based on weighted minimum mean square error (WMMSE) to solve the non-convex minimum rate maximization problem. Moreover, both shortest distance and strongest channel gain user grouping methods are employed with flexible user number per group. Simulation results show that the proposed transmission scheme outperforms the conventional schemes.

AB - The application of rate-splitting multiple access (RSMA) with robust interference management capabilities in multibeam satellite system has attracted significant attention. To ensure rate performance across all users while supporting diverse information services, including broadcast, multicast, and unicast transmissions, this paper proposes a transmission scheme based on hierarchical rate-splitting (HRS) aiming to achieve max-min fairness (MMF) in a multibeam satellite system. We also introduce an improved iterative optimization (IO) algorithm based on weighted minimum mean square error (WMMSE) to solve the non-convex minimum rate maximization problem. Moreover, both shortest distance and strongest channel gain user grouping methods are employed with flexible user number per group. Simulation results show that the proposed transmission scheme outperforms the conventional schemes.

KW - beamformer design

KW - hierarchical Rate-Splitting

KW - max-min Fairness

KW - multibeam satellite communications

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DO - 10.1109/VTC2025-Fall65116.2025.11309936

M3 - 会议稿件

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T3 - IEEE Vehicular Technology Conference

BT - 2025 IEEE 102nd Vehicular Technology Conference, VTC 2025-Fall - Proceedings

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Y2 - 19 October 2025 through 22 October 2025

ER -

Max-Min Fairness Beamforming with Hierarchical Rate Splitting for Multibeam Satellite System

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Keywords

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