Extending birthday paradox theory to estimate the number of tags in RFID systems.

The main objective of Radio Frequency Identification systems is to provide fast identification for tagged objects. However, there is always a chance of collision, when tags transmit their data to the reader simultaneously. Collision is a time-consuming event that reduces the performance of RFID syst...

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Main Authors: Masoud Shakiba, Mandeep Jit Singh, Elankovan Sundararajan, Azam Zavvari, Mohammad Tariqul Islam
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24752285/?tool=EBI
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author Masoud Shakiba
Mandeep Jit Singh
Elankovan Sundararajan
Azam Zavvari
Mohammad Tariqul Islam
author_facet Masoud Shakiba
Mandeep Jit Singh
Elankovan Sundararajan
Azam Zavvari
Mohammad Tariqul Islam
author_sort Masoud Shakiba
collection DOAJ
description The main objective of Radio Frequency Identification systems is to provide fast identification for tagged objects. However, there is always a chance of collision, when tags transmit their data to the reader simultaneously. Collision is a time-consuming event that reduces the performance of RFID systems. Consequently, several anti-collision algorithms have been proposed in the literature. Dynamic Framed Slotted ALOHA (DFSA) is one of the most popular of these algorithms. DFSA dynamically modifies the frame size based on the number of tags. Since the real number of tags is unknown, it needs to be estimated. Therefore, an accurate tag estimation method has an important role in increasing the efficiency and overall performance of the tag identification process. In this paper, we propose a novel estimation technique for DFSA anti-collision algorithms that applies birthday paradox theory to estimate the number of tags accurately. The analytical discussion and simulation results prove that the proposed method increases the accuracy of tag estimation and, consequently, outperforms previous schemes.
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spelling doaj.art-a0d8e7356c314484ba180a663837ca3f2022-12-21T18:10:40ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0194e9542510.1371/journal.pone.0095425Extending birthday paradox theory to estimate the number of tags in RFID systems.Masoud ShakibaMandeep Jit SinghElankovan SundararajanAzam ZavvariMohammad Tariqul IslamThe main objective of Radio Frequency Identification systems is to provide fast identification for tagged objects. However, there is always a chance of collision, when tags transmit their data to the reader simultaneously. Collision is a time-consuming event that reduces the performance of RFID systems. Consequently, several anti-collision algorithms have been proposed in the literature. Dynamic Framed Slotted ALOHA (DFSA) is one of the most popular of these algorithms. DFSA dynamically modifies the frame size based on the number of tags. Since the real number of tags is unknown, it needs to be estimated. Therefore, an accurate tag estimation method has an important role in increasing the efficiency and overall performance of the tag identification process. In this paper, we propose a novel estimation technique for DFSA anti-collision algorithms that applies birthday paradox theory to estimate the number of tags accurately. The analytical discussion and simulation results prove that the proposed method increases the accuracy of tag estimation and, consequently, outperforms previous schemes.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24752285/?tool=EBI
spellingShingle Masoud Shakiba
Mandeep Jit Singh
Elankovan Sundararajan
Azam Zavvari
Mohammad Tariqul Islam
Extending birthday paradox theory to estimate the number of tags in RFID systems.
PLoS ONE
title Extending birthday paradox theory to estimate the number of tags in RFID systems.
title_full Extending birthday paradox theory to estimate the number of tags in RFID systems.
title_fullStr Extending birthday paradox theory to estimate the number of tags in RFID systems.
title_full_unstemmed Extending birthday paradox theory to estimate the number of tags in RFID systems.
title_short Extending birthday paradox theory to estimate the number of tags in RFID systems.
title_sort extending birthday paradox theory to estimate the number of tags in rfid systems
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24752285/?tool=EBI
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AT azamzavvari extendingbirthdayparadoxtheorytoestimatethenumberoftagsinrfidsystems
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