Introduction of An Anti-Collision Protocol in RFID Systems

Document Type : Original Article

Authors

1 Graduated of ٍElectrical and Computer Engineering, Malek-ashtar University of Thechnology

2 Electrical and Computer Engineering, Malek-ashtar University of Thechnology

Abstract

The ability to easily and quickly access information through radio frequency identification (RFID) systems has led to the ever-expanding use of this technology in a variety of usages such as tactical applications. This technology provides the conditions for better situational awareness in tactical environments or        logistics. But, on the other hand, the process of identification in a scenario with different and numerous  actors, faces the collision challenge. The collision of tags in RFID systems is inevitable, and it affects the performance of RFID systems, especially in environments with a large number of tags. In this report, a    hybrid (of ALOHA and tree-based) anti-collision protocol is proposed. In the provided protocol, each frame and slot have prefixes, and in each slot, tags whose identities match the prefixes of the frame and the slot, send their responses to the reader. In this protocol, using the Manchester Coding method, the position of the collision bits is specified, and then collision tags are split into separate subgroups to reduce the  collision rate in the identification process. The simulation results of this protocol indicate that compared to other benchmark protocols, the identification time and the bit number of transferred tags in the proposed method are lower, which improve its performance.
 

Keywords

References

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Electronic and Cyber Defense
Volume 8, Issue 4 - Serial Number 32
January 2021
Pages 119-128

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History

  • Receive Date: 27 December 2019
  • Revise Date: 21 May 2020
  • Accept Date: 05 August 2020
  • Publish Date: 21 December 2020

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