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Technology of Network & Communication
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App. Res. of Comp. Printed Article
Vol. 40, 2023 No. 8
2457-2460

Post-processing scheme for polar decoding in 5G tap delay model

Shen Yuanyuan1,2
Ma Xiurong1,2
Shan Yunlong1,2
1. School of Integrated Circuit Science & Engineering, Tianjin University of Technology, Tianjin 300384, China
2. Engineering Research Center of Communication Devices & Technology, Ministry of Education, Tianjin 300384, China
DOI: 10.19734/j.issn.1001-3695.2022.12.0806

Abstract

Considering the tap delay channel model in 5G protocol, and aiming the problem that the segmented cyclic redundancy bit adaptive(SCAD-SCL) polarization decoding algorithm does not consider the influence of SNR on the log-likelihood ratio of the received sequence, this paper proposed the post-processing(PSCAD-SCL) decoding algorithm for SCAD-SCL. The algorithm determined the number of constant and unreliable log-likelihood ratio used to improve the reliability setting through simulation, and fliped and appropriately enlarged the unreliable log-likelihood ratio to improve the bit error rate performance. The simulation results show that the bit error rate of PSCAD-SCL is better than the original SCAD-SCL decoding algorithm in the signal-to-noise ratio of 1~3 dB. When the bit error rate is 10-4, the performance of PSCAD-SCL algorithm is about 0.3 dB higher than that of the SCAD-SCL algorithm. The proposed algorithm can improve 5G transmission performance.

Foundation Support

盲信号处理国家级重点实验室创新发展基金资助项目(6142413190101)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2022.12.0806
Publish at: Application Research of Computers Printed Article, Vol. 40, 2023 No. 8
Section: Technology of Network & Communication
Pages: 2457-2460
Serial Number: 1001-3695(2023)08-034-2457-04

Publish History

[2023-03-02] Accepted Paper
[2023-08-05] Printed Article

Cite This Article

沈园园, 马秀荣, 单云龙. 5G抽头延迟模型中极化译码后处理方案 [J]. 计算机应用研究, 2023, 40 (8): 2457-2460. (Shen Yuanyuan, Ma Xiurong, Shan Yunlong. Post-processing scheme for polar decoding in 5G tap delay model [J]. Application Research of Computers, 2023, 40 (8): 2457-2460. )

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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