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Open AccessArticle

Towards an Efficient Identification Process for Large-Scale RFID Systems

1
Department of Systems, Universidad Autónoma Metropolitana–Azcapotzalco, CDMX 02200, Mexico
2
Department of Electrical Engineering, Universidad Autónoma Metropolitana–Iztapalapa, CDMX 09340, Mexico
*
Author to whom correspondence should be addressed.
This work is an extended version of our paper “An EPC Class-1 Generation-2 anti-collision protocol for RFID tag identification in augmented systems” published in the 5th International EURASIP Workshop on RFID Technology (EURFID), 2015. The EURFID 2015 paper was limited to just comparing the Multi-Reader (MR) scheme with the L-Scheme. In this work, we extend our study by taking into account three versions of the MR-Scheme: one considering a sequential anti-collision protocol for readers and EPC-Gen2 for tags; another one considering collision recovering ability; and, the third one considering a “parallel” anti-collision mechanism for readers with collision recovery. Thus, a detailed comparison between the traditional centralized approach with the distributed approach is provided.
Sensors 2018, 18(7), 2350; https://doi.org/10.3390/s18072350
Received: 24 May 2018 / Revised: 5 July 2018 / Accepted: 9 July 2018 / Published: 19 July 2018
(This article belongs to the Section Internet of Things)
Radio Frequency Identification (RFID) is one of the most widely used wireless communications technologies nowadays. Among the numerous processes executed within an RFID system, the identification processis the most important one. There have been several proposals to efficiently execute such a mechanism, which are based on the use of an RFID identification method. Besides, one of the most studied scenarios comprises one reader and a set of RFID tags, which we call the centralized approach. Recent work shows that executing the identification process in a distributed or parallel way may be of great benefit for applications with high requirements on time and resources usage, i.e., applications where the time required to execute the identification process needs to be low. In this paper, we focus is on large RFID systems and compare two identification mechanisms, one based on the centralized approach and the other based on the distributed approach. Our aim is to find the advantages and disadvantages of each approach for general RFID scenarios. We observe that the distributed approach is very promising compared to the traditional approach since considerable improvements are found in identification delay, and also the implementation costs would be highly reduced. View Full-Text
Keywords: distributed identification; RFID systems; EPC-Gen2 distributed identification; RFID systems; EPC-Gen2
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Sanchez, L.; Ramos, V. Towards an Efficient Identification Process for Large-Scale RFID Systems. Sensors 2018, 18, 2350.

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