Design and Optimization of Secure Transmission Scheme for Rate-Splitting Multiple Access System

LEI Weijia; XIE Ke; TANG Hong; LEI Hongjiang

doi:10.11999/JEIT240389

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LEI Weijia, XIE Ke, TANG Hong, LEI Hongjiang. Design and Optimization of Secure Transmission Scheme for Rate-Splitting Multiple Access System[J]. Journal of Electronics & Information Technology. doi: 10.11999/JEIT240389

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LEI Weijia, XIE Ke, TANG Hong, LEI Hongjiang. Design and Optimization of Secure Transmission Scheme for Rate-Splitting Multiple Access System[J]. Journal of Electronics & Information Technology. doi: 10.11999/JEIT240389

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Design and Optimization of Secure Transmission Scheme for Rate-Splitting Multiple Access System

doi: 10.11999/JEIT240389

1.
School of Communications and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
2.
Chongqing Key Laboratory of Mobile Communications Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Funds: The National Natural Science Foundation of China (61971080)

Received Date: 2024-05-17
Rev Recd Date: 2024-09-23

Available Online: 2024-09-27

Abstract

Abstract

This paper studies the design and optimization issues of secure downlink transmission scheme for two users based on rate-splitting multiple access. Considering a scenario where partial messages sent to two users need to be kept confidential between users, the sum rate of non-confidential messages is maximized while ensuring the transmission rate of confidential messages. The common stream only carries the non-confidential messages, while the private streams carry both the non-confidential and confidential messages in a time-sharing manner. Transmit precoding vectors for each message flow, rate splitting, transmission time allocation for the private streams of non-confidential and confidential messages are jointly optimized. By decomposing the original problem into a two-level optimization problem and using methods such as binary search, relaxation variables, and successive convex approximation, the original problem is transformed and solved. The simulation results show that the proposed scheme can achieve higher non-confidential sum rate compared to the rate-splitting multiple access, where the private streams carry only the confidential messages, and space division multiple access with time-sharing between non-confidential messages and confidential messages.
- Rate splitting,
- Multiple access,
- Physical layer security,
- Precoding

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References(15)

References

[1]	MAO Yijie, DIZDAR O, CLERCKX B, et al. Rate-splitting multiple access: Fundamentals, survey, and future research trends[J]. IEEE Communications Surveys & Tutorials, 2022, 24(4): 2073–2126. doi: 10.1109/COMST.2022.3191937.
[2]	LIU Yuanwei, QIN Zhijin, ELKASHLAN M, et al. Nonorthogonal multiple access for 5G and beyond[J]. Proceedings of the IEEE, 2017, 105(12): 2347–2381. doi: 10.1109/JPROC.2017.2768666.
[3]	CLERCKX B, MAO Yijie, JORSWIECK E A, et al. A primer on rate-splitting multiple access: Tutorial, myths, and frequently asked questions[J]. IEEE Journal on Selected Areas in Communications, 2023, 41(5): 1265–1308. doi: 10.1109/JSAC.2023.3242718.
[4]	CLERCKX B, MAO Yijie, SCHOBER R, et al. Rate-splitting unifying SDMA, OMA, NOMA, and multicasting in MISO broadcast channel: A simple two-user rate analysis[J]. IEEE Wireless Communications Letters, 2020, 9(3): 349–353. doi: 10.1109/LWC.2019.2954518.
[5]	LIU Penglu, LI Yong, CHENG Wei, et al. Active intelligent reflecting surface aided RSMA for millimeter-wave hybrid antenna array[J]. IEEE Transactions on Communications, 2023, 71(9): 5287–5302. doi: 10.1109/TCOMM.2023.3285290.
[6]	雷维嘉, 张智, 雷宏江, 等. 速率分割多址接入系统中的协作中继传输策略与优化[J]. 北京邮电大学学报, 2024, 47(2): 58–65. doi: 10.13190/j.jbupt.2023-096. LEI Weijia, ZHANG Zhi, LEI Hongjiang, et al. Cooperative relay transmission strategy and optimization in rate-splitting multiple access system[J]. Journal of Beijing University of Posts and Telecommunications, 2024, 47(2): 58–65. doi: 10.13190/j.jbupt.2023-096.
[7]	SI Zhiwen, YIN Longfei, and CLERCKX B. Rate-splitting multiple access for multigateway multibeam satellite systems with feeder link interference[J]. IEEE Transactions on Communications, 2022, 70(3): 2147–2162. doi: 10.1109/TCOMM.2022.3144487.
[8]	PAPAZAFEIROPOULOS A and RATNARAJAH T. Rate-splitting robustness in multi-pair massive MIMO relay systems[J]. IEEE Transactions on Wireless Communications, 2018, 17(8): 5623–5636. doi: 10.1109/TWC.2018.2847668.
[9]	TONG Yuqiao, LI Dongdong, YANG Zhutian, et al. Cooperative rate splitting secure transmission with an untrusted user relay[J]. IEEE Transactions on Vehicular Technology, 2022, 72(2): 2667–2671. doi: 10.1109/TVT.2022.3211763.
[10]	TONG Yuqiao, LI Dongdong, YANG Zhutian, et al. Outage analysis of rate splitting networks with an untrusted user[J]. IEEE Transactions on Vehicular Technology, 2023, 72(2): 2626–2631. doi: 10.1109/TVT.2022.3209794.
[11]	XIA Huiyun, MAO Yijie, CLERCKX B, et al. Weighted sum-rate maximization for rate-splitting multiple access based secure communication[C]. 2022 IEEE Wireless Communications and Networking Conference, Austin, USA, 2022: 19–24. doi: 10.1109/WCNC51071.2022.9771854.
[12]	FU Hao, FENG Suili, TANG Weijun, et al. Robust secure beamforming design for two-user downlink MISO rate-splitting systems[J]. IEEE Transactions on Wireless Communications, 2020, 19(12): 8351–8365. doi: 10.1109/TWC.2020.3021725.
[13]	XIA Huiyun, ZHOU Xiaokang, HAN Shuai, et al. Security-reliability tradeoff in RSMA-based communications against eavesdropper collusion[J]. IEEE Wireless Communications Letters, 2023, 12(9): 1504–1507. doi: 10.1109/LWC.2023.3279860.
[14]	XIA Huiyun, HAN Shuai, and LI Cheng. Max-min fair optimization in RSMA-assisted secure communications with artificial noise[J]. IEEE Communications Letters, 2023, 27(12): 3181–3184. doi: 10.1109/LCOMM.2023.3328782.
[15]	JOUDEH H and 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. doi: 10.1109/TCOMM.2016.2603991.