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Protocol for Streaming Data from an RFID Sensor Network †.

Gentza Souto1, Florian Muralter1, Laura Arjona1

  • 1DeustoTech, University of Deusto, 48940 Bilbao, Spain.

Sensors (Basel, Switzerland)
|July 20, 2019
PubMed
Summary

A new Sensor Frmed Slotted Aloha (sFSA) protocol enhances computational RFID sensor networks. This method significantly boosts sensor read rates, improving data streaming from multiple passive RFID sensors.

Keywords:
EPC C1G2RFID sensor networkdata streamingwireless sensor network

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Area of Science:

  • Electrical Engineering
  • Computer Science
  • Sensor Technology

Background:

  • Passive Radio Frequency Identification (RFID) tags with integrated sensors, known as computational RFID (CRFID), are gaining traction.
  • CRFID systems, comprising multiple tags and a reader, form RFID sensor networks for data acquisition.
  • The existing EPCglobal Class 1 Generation 2 (EPC C1G2) standard exhibits poor performance in retrieving sensor data from numerous tags simultaneously due to collisions.

Purpose of the Study:

  • To address the limitations of the EPC C1G2 standard in CRFID sensor networks.
  • To introduce and evaluate a novel protocol, Sensor Frmed Slotted Aloha (sFSA), designed for efficient sensor data streaming.
  • To improve the Sensor Read Rate (SRR) and maintain consistent sensor sampling frequencies.

Main Methods:

  • Development of the Sensor Frmed Slotted Aloha (sFSA) protocol to manage tag collisions.
  • Implementation of a prototype RFID sensor network for experimental validation.
  • Comparative analysis of the sFSA protocol against the standard EPC C1G2 protocol.

Main Results:

  • The sFSA protocol demonstrates a significant increase in the Sensor Read Rate (SRR) compared to the EPC C1G2 standard.
  • Experimental results show an average SRR increase of over five times with the proposed sFSA protocol.
  • The sFSA protocol ensures a constant sensor sampling frequency, facilitating effective data streaming.

Conclusions:

  • The novel sFSA protocol offers a superior solution for data retrieval in CRFID sensor networks.
  • sFSA effectively mitigates tag collision issues, leading to enhanced performance and data throughput.
  • This protocol enables more reliable and efficient real-time data acquisition from passive RFID sensor networks.