Algorithm Research & Explore
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3651-3654

Collision tree algorithm of RFID parallel identification based on Walsh code

Luo Xuan1,2
Jia Xiaolin1,2
Gu Yajun1,2
1. School of Computer Science & Technology, Southwest University of Science & Technology, Mianyang Sichuan 621010, China
2. Mobile Internet of Things & Radio Frequency Identification Technology Key Laboratory of Mianyang(MIOT & RFID), Mianyang Sichuan 621010, China

Abstract

In order to address the problem of inability to parallelly identify multiple tags in the ICT algorithm when there are multiple collision slots and collisions at multiple positions in large-scale tag scenarios, this paper developed a PICT algorithm based on Walsh codes for RFID. The PICT algorithm combined Walsh synchronization orthogonal codes with the collision tree protocol. It used Walsh codes to spread the tags involved in multiple collisions in the ICT algorithm, and tags with unique Walsh codes communicate with the reader through different sub-channels, enabling parallel identification of multiple tags. Theoretical and experimental analyses demonstrate that the PICT algorithm requires fewer total system time slots compared to similar algorithms, and it achieves higher system identification efficiency, making it suitable for fast identification of large-scale tags.

Foundation Support

国家自然科学基金面上项目(61471306)
四川省自然科学基金面上项目(2022NSFSC0548)
四川省重点研发计划项目(2020YFS0360)
四川省教育厅人才培养质量和教学改革项目(JG2021-1414)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2023.04.0138
Publish at: Application Research of Computers Printed Article, Vol. 40, 2023 No. 12
Section: Algorithm Research & Explore
Pages: 3651-3654
Serial Number: 1001-3695(2023)12-019-3651-04

Publish History

[2023-07-05] Accepted Paper
[2023-12-05] Printed Article

Cite This Article

骆萱, 贾小林, 顾娅军. 基于Walsh码的RFID并行识别碰撞树算法 [J]. 计算机应用研究, 2023, 40 (12): 3651-3654. (Luo Xuan, Jia Xiaolin, Gu Yajun. Collision tree algorithm of RFID parallel identification based on Walsh code [J]. Application Research of Computers, 2023, 40 (12): 3651-3654. )

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.

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