Power Allocation and Passive Beamforming Design for RIS Aided NOMA in THz Communications

Wei Luo; Wei Liang; Shuhui Wen; Dawei Wang; Lixin Li

doi:10.1109/ISCTech58360.2022.00008

Power Allocation and Passive Beamforming Design for RIS Aided NOMA in THz Communications

Wei Luo
, Wei Liang
, Shuhui Wen
, Dawei Wang
, Lixin Li

School of Electronics and Information

Northwestern Polytechnical University Xian

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

3 Scopus citations

Abstract

In some specific transmission scenarios, the mobile users are blocked by the buildings or trees, which will lead to occasionally disconnect for the direct transmission links. As for the solution, reconfigurable intelligent surface (RIS) technique can provide supplementary links which aims to guarantee the quality of transmissions. In order to enhance the coverage area and spectrum efficiency in Terahertz (THz) networks, RIS aided non-orthogonal multiple access (NOMA) is conceived. Then, to maximize energy efficiency under the constraints of the users' quality of service (QoS), rate fairness and transmit power budget, a joint power allocation and RIS beamforming optimization is established. For the sake of solving this non-convex optimization, an alternating iterative algorithm has been introduced by decoupling the problem into two independent subproblems. According to the simulation results, the performances of energy efficiency and energy consumption calculated by our proposed algorithm outperform other benchmarks.

Original language	English
Title of host publication	Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022
Editors	Lei Zhang, Lixin Li
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	7-13
Number of pages	7
ISBN (Electronic)	9798350332933
DOIs	https://doi.org/10.1109/ISCTech58360.2022.00008
State	Published - 2022
Event	10th International Conference on Information Systems and Computing Technology, ISCTech 2022 - Virtual, Online, China Duration: 28 Dec 2022 → 30 Dec 2022

Publication series

Name	Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022

Conference

Conference	10th International Conference on Information Systems and Computing Technology, ISCTech 2022
Country/Territory	China
City	Virtual, Online
Period	28/12/22 → 30/12/22

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Beamforming Design
Energy Efficiency
Power Allocation
Reconfigurable Intelligent Surface
Terahertz

Access to Document

10.1109/ISCTech58360.2022.00008

Cite this

Luo, W., Liang, W., Wen, S., Wang, D., & Li, L. (2022). Power Allocation and Passive Beamforming Design for RIS Aided NOMA in THz Communications. In L. Zhang, & L. Li (Eds.), Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022 (pp. 7-13). (Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCTech58360.2022.00008

Luo, Wei ; Liang, Wei ; Wen, Shuhui et al. / Power Allocation and Passive Beamforming Design for RIS Aided NOMA in THz Communications. Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022. editor / Lei Zhang ; Lixin Li. Institute of Electrical and Electronics Engineers Inc., 2022. pp. 7-13 (Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022).

@inproceedings{f7079d494eb74817b285c4cb154ab67c,

title = "Power Allocation and Passive Beamforming Design for RIS Aided NOMA in THz Communications",

abstract = "In some specific transmission scenarios, the mobile users are blocked by the buildings or trees, which will lead to occasionally disconnect for the direct transmission links. As for the solution, reconfigurable intelligent surface (RIS) technique can provide supplementary links which aims to guarantee the quality of transmissions. In order to enhance the coverage area and spectrum efficiency in Terahertz (THz) networks, RIS aided non-orthogonal multiple access (NOMA) is conceived. Then, to maximize energy efficiency under the constraints of the users' quality of service (QoS), rate fairness and transmit power budget, a joint power allocation and RIS beamforming optimization is established. For the sake of solving this non-convex optimization, an alternating iterative algorithm has been introduced by decoupling the problem into two independent subproblems. According to the simulation results, the performances of energy efficiency and energy consumption calculated by our proposed algorithm outperform other benchmarks.",

keywords = "Beamforming Design, Energy Efficiency, Power Allocation, Reconfigurable Intelligent Surface, Terahertz",

author = "Wei Luo and Wei Liang and Shuhui Wen and Dawei Wang and Lixin Li",

note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 10th International Conference on Information Systems and Computing Technology, ISCTech 2022 ; Conference date: 28-12-2022 Through 30-12-2022",

year = "2022",

doi = "10.1109/ISCTech58360.2022.00008",

language = "英语",

series = "Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022",

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

pages = "7--13",

editor = "Lei Zhang and Lixin Li",

booktitle = "Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022",

}

Luo, W, Liang, W, Wen, S, Wang, D & Li, L 2022, Power Allocation and Passive Beamforming Design for RIS Aided NOMA in THz Communications. in L Zhang & L Li (eds), Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022. Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022, Institute of Electrical and Electronics Engineers Inc., pp. 7-13, 10th International Conference on Information Systems and Computing Technology, ISCTech 2022, Virtual, Online, China, 28/12/22. https://doi.org/10.1109/ISCTech58360.2022.00008

Power Allocation and Passive Beamforming Design for RIS Aided NOMA in THz Communications. / Luo, Wei; Liang, Wei; Wen, Shuhui et al.
Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022. ed. / Lei Zhang; Lixin Li. Institute of Electrical and Electronics Engineers Inc., 2022. p. 7-13 (Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022).

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

TY - GEN

T1 - Power Allocation and Passive Beamforming Design for RIS Aided NOMA in THz Communications

AU - Luo, Wei

AU - Liang, Wei

AU - Wen, Shuhui

AU - Wang, Dawei

AU - Li, Lixin

PY - 2022

Y1 - 2022

N2 - In some specific transmission scenarios, the mobile users are blocked by the buildings or trees, which will lead to occasionally disconnect for the direct transmission links. As for the solution, reconfigurable intelligent surface (RIS) technique can provide supplementary links which aims to guarantee the quality of transmissions. In order to enhance the coverage area and spectrum efficiency in Terahertz (THz) networks, RIS aided non-orthogonal multiple access (NOMA) is conceived. Then, to maximize energy efficiency under the constraints of the users' quality of service (QoS), rate fairness and transmit power budget, a joint power allocation and RIS beamforming optimization is established. For the sake of solving this non-convex optimization, an alternating iterative algorithm has been introduced by decoupling the problem into two independent subproblems. According to the simulation results, the performances of energy efficiency and energy consumption calculated by our proposed algorithm outperform other benchmarks.

AB - In some specific transmission scenarios, the mobile users are blocked by the buildings or trees, which will lead to occasionally disconnect for the direct transmission links. As for the solution, reconfigurable intelligent surface (RIS) technique can provide supplementary links which aims to guarantee the quality of transmissions. In order to enhance the coverage area and spectrum efficiency in Terahertz (THz) networks, RIS aided non-orthogonal multiple access (NOMA) is conceived. Then, to maximize energy efficiency under the constraints of the users' quality of service (QoS), rate fairness and transmit power budget, a joint power allocation and RIS beamforming optimization is established. For the sake of solving this non-convex optimization, an alternating iterative algorithm has been introduced by decoupling the problem into two independent subproblems. According to the simulation results, the performances of energy efficiency and energy consumption calculated by our proposed algorithm outperform other benchmarks.

KW - Beamforming Design

KW - Energy Efficiency

KW - Power Allocation

KW - Reconfigurable Intelligent Surface

KW - Terahertz

UR - https://www.scopus.com/pages/publications/85161929393

U2 - 10.1109/ISCTech58360.2022.00008

DO - 10.1109/ISCTech58360.2022.00008

M3 - 会议稿件

AN - SCOPUS:85161929393

T3 - Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022

SP - 7

EP - 13

BT - Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022

A2 - Zhang, Lei

A2 - Li, Lixin

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 10th International Conference on Information Systems and Computing Technology, ISCTech 2022

Y2 - 28 December 2022 through 30 December 2022

ER -

Luo W, Liang W, Wen S, Wang D , Li L. Power Allocation and Passive Beamforming Design for RIS Aided NOMA in THz Communications. In Zhang L, Li L, editors, Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022. Institute of Electrical and Electronics Engineers Inc. 2022. p. 7-13. (Proceedings - 2022 10th International Conference on Information Systems and Computing Technology, ISCTech 2022). doi: 10.1109/ISCTech58360.2022.00008

Power Allocation and Passive Beamforming Design for RIS Aided NOMA in THz Communications

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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