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Electronics 2016, 5(4), 84;

RFID Reader Anticollision Protocols for Dense and Mobile Deployments

Inria Lille-Nord Europe, 59650 Villeneuve d’Ascq, France
Université de Lyon, Inria, INSA Lyon, CITI, 69100 Villeurbanne, France
Author to whom correspondence should be addressed.
Academic Editors: Michael Sheng and Ali Shemshadi
Received: 30 September 2016 / Revised: 17 November 2016 / Accepted: 21 November 2016 / Published: 29 November 2016
(This article belongs to the Special Issue RFID Systems and Applications)
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The rapid development of RFID (Radio Frequency IDentification) technology has allowed its large adoption and led to increasing deployments of RFID solutions in diverse environments under varying scenarios and constraints. The nature of these constraints ranges from the amount to the mobility of the readers deployed, which in turn highly affects the quality of the RFID system, causing reading collisions. Although several solutions were proposed to engage the issue of reading collision, few were ever concerned with the densification and/or mobility of readers. This paper proposes two distributed TDMA (Time Division Multiple Access) approaches designed to reduce these collisions through local coordination between neighboring devices for different scenarios tested here. The first proposal is based on a reservation phase organized between readers with different priority levels given to readers depending on their previous success. The second one takes advantage of the particular case of RFID collisions, allowing a local and mutual decision of each reader to access or not tags in their vicinity. Simulations were run over different stressful environments in terms of tag/reader density and mobility, proving that our proposals achieved the best performance in terms of throughput, collision avoidance and coverage delay when compared to other collision reducing schemes. View Full-Text
Keywords: RFID Radio Frequency Identification; reader anticollision problem; MAC layer; resource allocation; distributed systems; mobile systems RFID Radio Frequency Identification; reader anticollision problem; MAC layer; resource allocation; distributed systems; mobile systems

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Mbacke, A.A.; Mitton, N.; Rivano, H. RFID Reader Anticollision Protocols for Dense and Mobile Deployments. Electronics 2016, 5, 84.

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