The key technical contribution of this chapter is in proposing a fair identification protocol for reading the IDs of all tags in an RFID tag population such that the number of transmissions per tag are equal. The key technical depth of this chapter is in the mathematical development of the theory that FRIP is based upon. The solid theoretical underpinning of FRIP ensures that the actual fairness that it achieves is greater than or equal to the required fairness. We have developed a novel technique that FRIP uses to execute large frame sizes to ensure compliance with the C1G2 standard. We have presented a comprehensive evaluation of FRIP and its side-by-side comparisons with nine major prior tag identification protocols. Our experimental results show that FRIP significantly outperforms all prior identification protocols, even those that are not C1G2 compliant, for not only the fairness but also the metrics such as number of transmissions per tag and power consumption.

Chapter Contents:

• 2.1 Introduction
• 2.1.1 Motivation and problem statement
• 2.1.2 Limitations of prior art
• 2.1.3 Proposed approach
• 2.1.3.1 Identification process
• 2.1.3.2 Large frame size implementation
• 2.1.3.3 Multiple readers
• 2.1.4 Key novelty and contributions
• 2.2 Related work
• 2.2.1 Deterministic identification protocols
• 2.2.2 Nondeterministic identification protocols
• 2.2.3 Hybrid identification protocols
• 2.3 Optimal frame size
• 2.3.1 Jain's fairness index
• 2.3.2 Total identification time
• 2.3.3 Expected values of slots
• 2.3.4 Expected number of Aloha frames
• 2.3.5 Calculating optimal frame size
• 2.3.6 Large frame size implementation
• 2.4 Experimental results
• 2.4.1 Evaluation of FRIP
• 2.4.1.1 Fairness
• 2.4.1.2 Identification time
• 2.4.1.3 Effect of splitting tag population
• 2.4.1.4 Effect of error in population size estimate
• 2.4.2 Comparison with existing protocols
• 2.4.2.1 Fairness
• 2.4.2.2 Normalized tag transmissions
• 2.4.2.3 Normalized energy consumption
• 2.4.2.4 Normalized identification time
• 2.5 Conclusion

Inspec keywords: radiofrequency identification; protocols

Other keywords: RFID identification-fairness; power consumption; FRIP; C1G2 standard; RFID tag; fair identification protocol

Subjects: Protocols; RFID systems