Design of fairness-driven RSMA-SDMA precoding

Yanjing SUN; Fengzhi CHENG; Jiasi ZHOU; Song LI

doi:10.11959/j.issn.1000-436x.2022085

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Design of fairness-driven RSMA-SDMA precoding

Papers | 更新时间：2024-06-05

- Design of fairness-driven RSMA-SDMA precoding
- Journal on Communications Vol. 43, Issue 4, Pages: 177-185(2022)
- 作者机构：
  
  1. 中国矿业大学信息与控制工程学院，江苏徐州 221116
  2. 徐州智能安全与应急协同工程研究中心，江苏徐州 221008
  3. 中国矿业大学人工智能研究院，江苏徐州 221008
  4. 中国矿业大学信息化建设与管理处，江苏徐州 221008
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(62071472);The Fundamental Research Funds for the Central Universities(2020ZDPY0304)
- DOI：10.11959/j.issn.1000-436x.2022085
  CLC： TN929.53
- Online First：2022-04，
  
  Published：25 April 2022
- 稿件说明：
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Yanjing SUN, Fengzhi CHENG, Jiasi ZHOU, et al. Design of fairness-driven RSMA-SDMA precoding[J]. Journal on Communications, 2022, 43(4): 177-185.
DOI：

Yanjing SUN, Fengzhi CHENG, Jiasi ZHOU, et al. Design of fairness-driven RSMA-SDMA precoding[J]. Journal on Communications, 2022, 43(4): 177-185. DOI： 10.11959/j.issn.1000-436x.2022085.

摘要

针对在发射功率受限时系统最小用户速率与系统公平性问题，提出了一种联合速率分拆多址接入（RSMA）和空分多址接入（SDMA）的用户接入方式选择传输策略，并建模了最大化系统公平性预编码设计问题。为解决建模所形成的离散非凸优化问题，将其分解为求解外层用户接入方式选择与内层最优预编码设计2个非凸子问题。针对预编码设计优化，利用二次变换的多比率分式规划将预编码设计问题转化为双层轮换问题，对用户接入方式逐次优化，得到了外层用户接入方式选择最优解的闭式表达式；以凸优化解决内层预编码设计问题，逐次优化用户接入方式选择传输策略，提出基于分式优化的预编码设计算法，利用二次变换的多比率分式规划设计最优预编码向量，求解功率受限下最大化最小用户速率。仿真结果表明，相比于RSMA、SDMA等传输策略，公平性驱动的RSMA-SDMA预编码设计提升了系统最小用户速率，保障了系统公平性。

Abstract

In view of the minimum user rate and system fairness when the transmit power was limited

a user access mode selection transmission strategy by joint rate-splitting multiple access (RSMA) and space division multiple access (SDMA) was proposed.The precoding design problem of maximizing system fairness was modeled.In order to solve the discrete non-convex optimization problem formed

it was decomposed into two non-convex sub-problems

such as the user access mode selection and the inner optimal precoding design.For the precoding design

a quadratic transform of multidimensional and complex FP was used to transform the precoding design into double rotation

and the closed-form expression of the optimal solution for the outer user access mode selection was obtained.Convex optimization was used to solve the inner precoding design problem

and successively optimize the user access mode selection.An algorithm based on fractional optimization was proposed for the problem

and the optimal precoding vector was designed using the quadratic transform of multidimensional and complex FP to maximize the minimum user rate under power constraints.The simulation results prove that compared with RSMA

SDMA and other transmission strategies

the fairness-driven RSMA-SDMA precoding design improves the minimum user rate of the system and guarantees the system fairness.

关键词

Keywords

references

MAO Y J , CLERCKX B , LI V O K . Rate-splitting multiple access for downlink communication systems:bridging,generalizing,and outperforming SDMA and NOMA [J ] . EURASIP Journal on Wireless Communications and Networking , 2018 , 2018 ( 1 ): 133 .

苏鑫 . 无线协作传输系统中新型干扰处理技术研究 [D ] . 北京:北京邮电大学 , 2019 .

SU X . Research on novel interference processing in wireless cooperative transmission system [D ] . Beijing:Beijing University of Posts and Telecommunications , 2019 .

MAO Y J , CLERCKX B , ZHANG J , et al . Max-min fairness of K-user cooperative rate-splitting in MISO broadcast channel with user relaying [J ] . IEEE Transactions on Wireless Communications , 2020 , 19 ( 10 ): 6362 - 6376 .

HAN T , KOBAYASHI K . A new achievable rate region for the interference channel [J ] . IEEE Transactions on Information Theory , 1981 , 27 ( 1 ): 49 - 60 .

JOUDEH H , CLERCKX B . Sum-rate maximization for linearly precoded downlink multiuser MISO systems with partial CSIT:a rate-splitting approach [J ] . IEEE Transactions on Communications , 2016 , 64 ( 11 ): 4847 - 4861 .

PIOVANO E , CLERCKX B . Optimal DoF region of the K-user MISO BC with partial CSIT [J ] . IEEE Communications Letters , 2017 , 21 ( 11 ): 2368 - 2371 .

MAO Y J , CLERCKX B , LI V O K . Energy efficiency of rate-splitting multiple access,and performance benefits over SDMA and NOMA [C ] // Proceedings of 2018 15th International Symposium on Wireless Communication Systems (ISWCS) . Piscataway:IEEE Press , 2018 : 1 - 5 .

DAI M B , CLERCKX B , GESBERT D , et al . A rate splitting strategy for massive MIMO with imperfect CSIT [J ] . IEEE Transactions on Wireless Communications , 2016 , 15 ( 7 ): 4611 - 4624 .

PAPAZAFEIROPOULOS A , CLERCKX B , RATNARAJAH T . Rate-splitting to mitigate residual transceiver hardware impairments in massive MIMO systems [J ] . IEEE Transactions on Vehicular Technology , 2017 , 66 ( 9 ): 8196 - 8211 .

MAO Y J , CLERCKX B , LI V O K . Rate-splitting for multi-user multi-antenna wireless information and power transfer [C ] // Proceedings of 2019 IEEE 20th International Workshop on Signal Processing Advances in Wireless Communications . Piscataway:IEEE Press , 2019 : 1 - 5 .

REDDY Y S , CHOPRA G , DUBEY A , et al . Rate-splitting random access mechanism for massive machine type communications in 5G cellular Internet-of-things [C ] // Proceedings of 2021 IEEE 32nd Annual International Symposium on Personal,Indoor and Mobile Radio Communications . Piscataway:IEEE Press , 2021 : 648 - 653 .

MO J , WALRAND J . Fair end-to-end window-based congestion control [J ] . IEEE/ACM Transactions on networking , 2000 , 8 ( 5 ): 556 - 567 .

KARIPIDIS E , SIDIROPOULOS N D , LUO Z Q . Quality of service and max-min fair transmit beamforming to multiple cochannel multicast groups [J ] . IEEE Transactions on Signal Processing , 2008 , 56 ( 3 ): 1268 - 1279 .

CHEN D , KUEHN V . Weighted max-min fairness oriented load-balancing and clustering for multicast cache-enabled F-RAN [C ] // Proceedings of 2016 9th International Symposium on Turbo Codes and Iterative Information Processing (ISTC) . Piscataway:IEEE Press , 2016 : 395 - 399 .

ZHOU J S , SUN Y J , LI S , et al . Max-min fairness driven multicast sparse beamforming for cache-enabled cloud RAN [J ] . Computer Communications , 2020 , 154 : 246 - 253 .

BASTAMI H , LETAFATI M , MORADIKIA M , et al . On the physical layer security of the cooperative rate-splitting-aided downlink in UAV networks [J ] . IEEE Transactions on Information Forensics and Security , 2021 , 16 : 5018 - 5033 .

CERNA-LOLI R , DIZDAR O , CLERCKX B . A rate-splitting strategy to enable joint radar sensing and communication with partial CSIT [C ] // Proceedings of 2021 IEEE 22nd International Workshop on Signal Processing Advances in Wireless Communications . Piscataway:IEEE Press , 2021 : 491 - 495 .

ZHOU J S , SUN Y J , CHEN R R , et al . Rate splitting multiple access for multigroup multicast beamforming in cache-enabled C-RAN [J ] . IEEE Transactions on Vehicular Technology , 2021 , 70 ( 12 ): 12758 - 12770 .

YANG Z H , CHEN M Z , SAAD W , et al . Optimization of rate allocation and power control for rate splitting multiple access (RSMA) [J ] . IEEE Transactions on Communications , 2021 , 69 ( 9 ): 5988 - 6002 .

孙彦景 , 刘洋 , 周家思 , 等 . 基于非完美信道信息的MIMO NOMA系统和速率最大化 [J ] . 通信学报 , 2019 , 40 ( 11 ): 94 - 100 .

SUN Y J , LIU Y , ZHOU J S , et al . Sum-rate maximization in MIMO NOMA system with imperfect CSI [J ] . Journal on Communications , 2019 , 40 ( 11 ): 94 - 100 .

SHEN K M , YU W . Fractional programming for communication systems—part I:power control and beamforming [J ] . IEEE Transactions on Signal Processing , 2018 , 66 ( 10 ): 2616 - 2630 .

AHMAD A A , KAKAR J , DAHROUJ H , et al . Rate splitting and common message decoding for MIMO C-RAN systems [C ] // Proceedings of 2019 IEEE 20th International Workshop on Signal Processing Advances in Wireless Communications . Piscataway:IEEE Press , 2019 : 1 - 5 .

ZHOU Y H , YU W . Fronthaul compression and transmit beamforming optimization for multi-antenna uplink C-RAN [J ] . IEEE Transactions on Signal Processing , 2016 , 64 ( 16 ): 4138 - 4151 .

ZHOU J S , SUN Y J , TELLAMBURA C . Physical-layer security for cache-enabled C-RANs via rate splitting [J ] . IEEE Communications Letters , 2022 , PP ( 99 ): 1 .

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Yanjing SUN

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Jiasi ZHOU

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Song LI

Related Institution

School of Communication and Information Engineering,Xi’an University of Science and Technology

School of Science and Engineering,Chinese University of Hong Kong (Shenzhen Campus)

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