A simulation-based comprehensive study of the LBT mechanism in RFID networks
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This research has been supported by the project AIM, ref. TEC2016-76465-C2-1-R (AEI/FEDER, EU).Fecha de publicación
2019-01-19Editorial
IEEECita bibliográfica
López Matencio, P. A. y Vales Alonso, J. J.: "A simulation-based comprehensive study of the LBT mechanism in RFID networks," 2018 6th International EURASIP Workshop on RFID Technology (EURFID), Brno, Czech Republic, 2018, pp. 1-7, doi: 10.1109/EURFID.2018.8611724.Palabras clave
RFIDLBT
Collisions
Interferences
Resumen
Radiofrequency Identification (RFID) installations with passive tags pose the interference problem among readers. Tags require a minimal power-up signal strength sent by the reader to operate and therefore the system is very sensitive to interferences. To face this issue, two mechanisms are used: (a) an anti-collision protocol, which serves to solve tags' collisions, and (b) a network coordination protocol, which coordinates readers operation to avoid them transmitting at the same time (and thus interfering each other). In this paper we address a thorough study of the standardized coordination protocol Listen Before Talk (LBT), which has been issued by the European regulation ETSI 302 208. The goal is describing the network operation in terms of the achievable throughput, by carefully detailing all the critical settings of a real facility: (a) a physical model for the channel which involves precise computations of powers and gains, sensitivities and channel fading, (b) modeling the ...
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