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Technology of Network & Communication
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App. Res. of Comp. Printed Article
Vol. 41, 2024 No. 10
3129-3134

Optimization and deployment planning of multi RIS assisted in vehicle communication signals

Chen Fatang
Wang Jiacheng
Liu Zuo
School of Communications & Information Engineering, Chongqing University of Posts & Telecommunications, Chongqing 400065, China
DOI: 10.19734/j.issn.1001-3695.2024.02.0041

Abstract

This paper proposed a scheme to assist communication for vehicles undergoing uniform motion with variable speed, addressing issues such as Doppler spread, time delay spread, and received signal-to-noise ratio(SNR) through the utilization of a multi-intelligent RIS. Unlike traditional channel estimation, this scheme utilized channel gains and optimized RIS phase to minimize Doppler and delay spreads while maximizing instantaneous signal-to-noise ratio(SNR) for the moving object. The scheme studied the impact of RIS placement on the received signal by optimizing the RIS phase, exploring the distance between RIS units and the optimal positioning of RIS units when the distance between them was fixed to maintain a low range of reception SNR and delay spreading. It introduced relative motion theory for this problem and proposed respective algorithms to address both issues. Simulations show around a 10 dB power gain for vehicular communication receivers with multiple RIS assistance. Optimal RIS deployment suggests placing the first RIS near the base station and minimizing inter-RIS distances as much as practically feasible, showcasing the broad applicability of this multi-RIS communication approach in vehicular scenarios.

Foundation Support

重庆市自然科学基金创新发展联合基金资助项目(中国星网)资助项目(CST2023NSCQ-LZX0114)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2024.02.0041
Publish at: Application Research of Computers Printed Article, Vol. 41, 2024 No. 10
Section: Technology of Network & Communication
Pages: 3129-3134
Serial Number: 1001-3695(2024)10-035-3129-06

Publish History

[2024-07-04] Accepted Paper
[2024-10-05] Printed Article

Cite This Article

陈发堂, 王嘉程, 刘祚. 多RIS辅助车载通信信号优化及部署规划 [J]. 计算机应用研究, 2024, 41 (10): 3129-3134. (Chen Fatang, Wang Jiacheng, Liu Zuo. Optimization and deployment planning of multi RIS assisted in vehicle communication signals [J]. Application Research of Computers, 2024, 41 (10): 3129-3134. )

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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