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Technology of Network & Communication
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App. Res. of Comp. Printed Article
Vol. 40, 2023 No. 1
249-256

Performance optimization for double-IRS assisted NOMA SWIPT system

Chen Jiayue1
Pang Haijian2
Qiu Kang1
Cui Miao1,2
Zhang Guangchi2
1. No. 7 Research Institute of China Electronics Technology Group Cooperation, Guangzhou 510310, China
2. School of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China
DOI: 10.19734/j.issn.1001-3695.2022.04.0266

Abstract

SWIPT can effectively deal with the energy limitation problem of communication terminals, and IRS can assist in enhancing the efficiency of SWIPT. Therefore, to overcome the shortcoming of limited coverage of deploying a single IRS and further improve the time and spectrum resource utilization efficiency of SWIPT, this paper studied a double-IRS-assisted NOMA SWIPT system, where the beamforming vector of the transmitter, the phase shifts of each IRS, and the power splitting coefficients of the receivers were jointly optimized to maximize the minimum user rate. To solve the above non-convex optimization problem with highly coupled variables, this paper proposed an AO algorithm based on SDR and SCA techniques to solve it efficiently. The simulation results show that the double-IRS-assisted system can achieve a higher minimum rate than that of its single-IRS, which reveals the superiority of deploying double IRS, the effectiveness of the proposed algorithm, and the importance of jointly optimizing IRS phase shifts and power splitting coefficients in improving the user rate performance.

Foundation Support

国家重点研发计划资助项目(2020YFB1805300)
广东省科技计划资助项目(2021A0505030015)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2022.04.0266
Publish at: Application Research of Computers Printed Article, Vol. 40, 2023 No. 1
Section: Technology of Network & Communication
Pages: 249-256
Serial Number: 1001-3695(2023)01-041-0249-08

Publish History

[2022-08-15] Accepted Paper
[2023-01-05] Printed Article

Cite This Article

陈嘉悦, 庞海舰, 裘康, 等. 双IRS辅助的NOMA无线携能通信网络优化 [J]. 计算机应用研究, 2023, 40 (1): 249-256. (Chen Jiayue, Pang Haijian, Qiu Kang, et al. Performance optimization for double-IRS assisted NOMA SWIPT system [J]. Application Research of Computers, 2023, 40 (1): 249-256. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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