RFID Model for Simulating Framed Slotted ALOHA Based Anti-Collision Protocol for Muti-Tag Identification

Kang, Seung-Nam; Prodanoff, Zornitza Genova

doi:10.5772/16601

Cited by 3 publications

(4 citation statements)

References 6 publications

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“…In this algorithm, we have three cases for slots, collide completely, don't collide, or succeed. There is no partial collision, so this algorithm reduces waste of reading cycle [4].…”

Section: B Slotted Aloha Algorithm (Sa)mentioning

confidence: 99%

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Improved Anti-Collision Algorithm for Tag Identification in Future Internet of Things

Moshref¹

2017

IJCNIS

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The most important research in the world in these days, research that looking at the internet of thing's (IoT) topics and their applications. Most of these applications depend on RFID system, which includes RFID readers and tags. The important issues in RFID system or network are how we can reduce anti-collision between readers to identify and read tags data. In these paper, we suggest an Improved anti-collision protocol, which can be used to connect RFID readers with RFID tags and reduce the number of RFID tag's collisions. The simulation shows that an Improved Class-1 Generation 2 algorithm is better than Slotted Aloha, Class-1 Generation-2 (Number of Tags Known), Class-1 Generation-2 (Number of Tags Unknown) algorithms.

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“…In this algorithm, we have three cases for slots, collide completely, don't collide, or succeed. There is no partial collision, so this algorithm reduces waste of reading cycle [4].…”

Section: B Slotted Aloha Algorithm (Sa)mentioning

confidence: 99%

“…Zornitza Prodanoff and Seungnam Kang say that in each read cycle there are multiple frames and each frame is divided into the same number of slots. So, this algorithm may reduce the number of collisions and give the best results compared with Slotted Aloha [4].…”

Section: Framed Slotted Aloha Algorithm (Fsa)mentioning

confidence: 99%

Improved Anti-Collision Algorithm for Tag Identification in Future Internet of Things

Moshref¹

2017

IJCNIS

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“…To minimize the impact of these collisions, the readers in the market implement a medium access control (MAC) mechanism based on the worldwide standard EPCglobal Class-1 Gen-2 [31]. 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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