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Article

An Effective Extension of Anti-Collision Protocol for RFID in the Industrial Internet of Things (IIoT)

1
Postgraduate Program in Electrical and Computer Engineering, Federal University of Rio Grande do Norte, Natal 59078-970, Rio Grande do Norte, Brazil
2
Digital Metropolis Institute, Federal University of Rio Grande do Norte, Natal 59078-970, Rio Grande do Norte, Brazil
3
Department of Computer Engineering and Automation, Federal University of Rio Grande do Norte, Campus Universitário, Natal 59078-900, Brazil
*
Author to whom correspondence should be addressed.
Sensors 2018, 18(12), 4426; https://doi.org/10.3390/s18124426
Received: 26 September 2018 / Revised: 26 November 2018 / Accepted: 26 November 2018 / Published: 14 December 2018
(This article belongs to the Special Issue RFID-Based Sensors for IoT Applications)
The Industrial Internet of Things (IIoT) is often presented as a concept that is significantly changing industry, yet continuous improvements in the identification and automation of objects are still required. Such improvements are related to communication speed, security, and reliability, critical attributes for industrial environments. In this context, the radio-frequency identification (RFID) systems present some issues related to frame collision when there are several tags transmitting data. The dynamic framed-slotted ALOHA (DFSA) is a widely used algorithm to solve collision problems in RFID systems. DFSA dynamically adjusts the frame length based on estimations of the number of labels that have competed for slots in the previous frame. Thus, the accuracy of the estimator is directly related to the label identification performance. In the literature, there are several estimators proposed to improve labels identification accuracy. However, they are not efficient when considering a large tag population, requiring a considerable amount of computational resources to perform the identification. In this context, this work proposes an estimator, which can efficiently identify a large number of labels without requiring additional computational resources. Through a set of simulations, the results demonstrate that the proposed estimator has a nearly ideal channel usage efficiency of 36.1%, which is the maximum efficiency of the DFSA protocol. View Full-Text
Keywords: IIoT; DFSA; RFID; throughput IIoT; DFSA; RFID; throughput
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MDPI and ACS Style

Filho, I.E.d.B.; Silva, I.; Viegas, C.M.D. An Effective Extension of Anti-Collision Protocol for RFID in the Industrial Internet of Things (IIoT). Sensors 2018, 18, 4426. https://doi.org/10.3390/s18124426

AMA Style

Filho IEdB, Silva I, Viegas CMD. An Effective Extension of Anti-Collision Protocol for RFID in the Industrial Internet of Things (IIoT). Sensors. 2018; 18(12):4426. https://doi.org/10.3390/s18124426

Chicago/Turabian Style

Filho, Israel E.d.B., Ivanovitch Silva, and Carlos M.D. Viegas 2018. "An Effective Extension of Anti-Collision Protocol for RFID in the Industrial Internet of Things (IIoT)" Sensors 18, no. 12: 4426. https://doi.org/10.3390/s18124426

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