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Algorithm Research & Explore
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493-497

Research on anti-collision algorithm of UHF RFID based on parallelizable identification

He Yigang
She Peiliang
Zuo Lei
Zhang Chaoqun
School of Electrical Engineering & Automation, Hefei University of Technology, Hefei 230009, China

Abstract

Aiming at the problems of low system throughput rate and low system identification rate of traditional dynamic frame time gap ALOHA multi-label collision prevention algorithm(DFSA), this paper proposed an UHF RFID collision prevention algorithm(OVSF-DFSA), which could be identified in parallel. By combining the code division multiple access technology based on orthogonal variable spread spectrum factor(OVSF) code as spread spectrum code and dynamic frame time slot ALOHA(DFSA) protocol, the algorithm broke the limitation of recognizing only one tag in a single time slot and realized the transformation from label collision to code collision. Based on theoretical analysis and simulation experiment, this paper explored the performance of the system throughput rate, total time slot number and system recognition rate of the algorithm. Experimental results show that when the frame length of fs>2 and OVSF code length m>2, and the tag number is more than 200, the system throughput rate of OVSF-DFSA algorithm is m times that of DFSA algorithm, and compared with DFSA, MS-DFSA and PIGDFSA algorithm, OVSF-DFSA algorithm performs better in the above performances.

Foundation Support

国家自然科学基金资助项目(51777050,51577046)
国家自然科学基金重点项目(51637004)
国家重点研发计划资助项目(2016YFF0102200)
装备预先研究重点项目

Publish Information

DOI: 10.19734/j.issn.1001-3695.2018.07.0550
Publish at: Application Research of Computers Printed Article, Vol. 37, 2020 No. 2
Section: Algorithm Research & Explore
Pages: 493-497
Serial Number: 1001-3695(2020)02-038-0493-05

Publish History

[2020-02-05] Printed Article

Cite This Article

何怡刚, 佘培亮, 佐磊, 等. 可并行识别的UHF RFID防碰撞算法研究 [J]. 计算机应用研究, 2020, 37 (2): 493-497. (He Yigang, She Peiliang, Zuo Lei, et al. Research on anti-collision algorithm of UHF RFID based on parallelizable identification [J]. Application Research of Computers, 2020, 37 (2): 493-497. )

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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