Multiframe Maximum-Likelihood Tag Estimation for RFID Anticollision Protocols

Vales‐Alonso, Javier; Bueno-Delgado, M. V.; Egea-López, Esteban; González-Castaño, Francisco J.; Alcaraz, Juan J.

doi:10.1109/tii.2011.2158831

Cited by 84 publications

(54 citation statements)

References 24 publications

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“…(2) and (3), the optimal frame size for all tag backlog can be derived. It is noted that the authors in [12] provide another Q-selection method with can yield the same result. But our scheme is simpler without multiple loop iterations.…”

Section: System Model and Algorithm Descriptionmentioning

confidence: 79%

“…According to Schoute's method [2], the estimated tag quantity of a full frame can be given as n est = S + 2.39C, where S and C are the number of successful and collision slots at the end of current identification round. Different to the existing solutions [3] [11][12] where the tag quantity is estimated by the previous full frame, we propose an algorithm to estimate the tag quantity by only using a fraction (also called detected sector F ds ) of the current frame. The estimated tag quantity can be given as…”

Section: B the Backlog Estimation Methodsmentioning

confidence: 99%

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An Effective Frame Breaking Policy for Dynamic Framed Slotted Aloha in RFID

Sheng

Hong

et al. 2016

IEEE Commun. Lett.

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Guangjun (2016) An effective frame breaking policy for dynamic framed slotted aloha in RFID. IEEE Communications Letters, 20 (4). pp. 692-695. ISSN 1089-7798 This version is available from Sussex Research Online: http://sro.sussex.ac.uk/59314/ This document is made available in accordance with publisher policies and may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the URL above for details on accessing the published version. Copyright and reuse:Sussex Research Online is a digital repository of the research output of the University.Copyright and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable, the material made available in SRO has been checked for eligibility before being made available.Copies of full text items generally can be reproduced, displayed or performed and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. Abstract-Tag collision problem is considered as one of the critical issues in RFID system. To further improve the identification efficiency of UHF RFID system, a frame breaking policy is proposed with dynamic framed slotted aloha algorithm. Specifically, the reader makes effective use of idle, successful and collision statistics during the early observation phase to recursively determine the optimal frame size. Then the collided tags in each slot will be resolved by individual frames. Simulation results show that the proposed algorithm achieves a better identification performance compared with the existing Alohabased algorithms.

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Section: System Model and Algorithm Descriptionmentioning

confidence: 79%

Section: B the Backlog Estimation Methodsmentioning

confidence: 99%

An Effective Frame Breaking Policy for Dynamic Framed Slotted Aloha in RFID

Sheng

Hong

et al. 2016

IEEE Commun. Lett.

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“…It defines an MAC mechanism for RFID readers working at UHF that organize the tags responses by a Frame Slotted Aloha (FSA) protocol [32], controlled by the reader. This is a very simple mechanism with a low rate of identification, which has led the scientific community to propose new alternatives compatible with the standard that significantly increase the rate of identified tags per time unit [33][34][35][36].…”

Section: Agents At the Rfid Medium Access Controlmentioning

confidence: 99%

“…It is recommended to use bistatic antennas, with circular polarization, and a distance between the reader and the reader antennas (cable) less than 5 m. The reader will have at least 4 I/O ports, and it will work to the maximum output power according to the ITU region where it is operating. The reader-to-tag communication protocol must be EPCglobal Class-1 Gen-2 [31] or an improved version, compatible with the standard, that permits to modify the frame-length parameter (Q) [32][33][34]. Readers must implement a reader-toreader anti-collision protocol based on FHHS or a similar technique, being compatible with the current standard [31].…”

mentioning

confidence: 99%

Case Study: Installing RFID Systems in Supermarkets

Bueno-Delgado¹,

Burrull²,

Pavón‐Mariño³

2017

Radio Frequency Identification

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Radio frequency identification technology (RFID) is considered as the reference technology for wireless identification and item traceability. Supermarkets are one of those scenarios where the RFID potential can be harnessed. In theory, RFID in supermarkets shows several advantages compared with traditional barcode systems, offering real-time inventory, stock control, cash queues, among others. In practice, its massive and global implementation is still being delayed due to the high quantity of factors that degrade the RFID system performance in these scenarios, causing uncontrolled items and identification losses and, at the end, economical losses. Some works in the scientific literature studied a single or a set of problems related to RFID performance, mostly focused on a specific communication layer: antennas and hardware design, interferences at physical layer, medium access control (MAC) protocols, security issues, or middleware challenges. However, there are no works describing in depth the set of factors affecting RFID performance in a specific scenario and contemplating the entire communication layer stack. The first challenge of this chapter is to provide a complete analysis of those physical and environmental factors, hardware and software limitations, and standard and regulation restrictions that have a direct impact on the RFID system performance in supermarkets. This analysis is addressed by communication layers, paying attention to the point of view of providers, supermarket companies, and final customers. Some of the most feasible and influential research works that address individual problems are also enumerated. Finally, taking the results extracted from this study, this chapter provides a Guide of Good Practices (GGPs), giving a global vision for addressing a successful RFID implementation project, useful for researchers, developers, and installers.

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“…This technology has recently seen growing interest from a wide range of industries such as retail, pharmaceutical, and logistics [18][19][20][21]. In these domains, RFID technology holds the promise eliminating many existing business problems by bridging the economically costly gap between the virtual world of IT systems and the real world of products and logistical units.…”

Section: Introductionmentioning

confidence: 99%

A Middleware Architecture for RFID-enabled traceability of air baggage

et al. 2017

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Abstract. 1980 marked the start of a boom in radiofrequency identification (RFID) technology, initially associated with a growing need for traceability. In view of the technological progress and lower costs, RFID's area of application became much broader and, today, multiple business sectors take advantage of this technology. However, in order to achieve the maximum benefits of RFID technology, the data collected should be delivered in the best conditions to the whole applications that have need of its exploitation. For that, a dedicated middleware solution is required to ensure the collection of RFID data and their integration in information systems. The issues and key points of this integration as the description of the RFID technology will be summarized in the present paper, with a new middleware architecture. We focus mainly on components and the design of our middleware MedRFID, solution developed in our Lab, and which integrates mobility and provides extensibility, scalability, abstraction, ease of deployment and compatibility with IATA standards and EPCglobal standards. Moreover, we have developed an application (FindLuggage) allowing a real time tracking of luggage in the airport, based on the proposed middleware MedRFID.

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Multiframe Maximum-Likelihood Tag Estimation for RFID Anticollision Protocols

Cited by 84 publications

References 24 publications

An Effective Frame Breaking Policy for Dynamic Framed Slotted Aloha in RFID

An Effective Frame Breaking Policy for Dynamic Framed Slotted Aloha in RFID

Case Study: Installing RFID Systems in Supermarkets

A Middleware Architecture for RFID-enabled traceability of air baggage

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