Abstract
This chapter studies the problem of periodically and automatically estimating the number of RFID tags. In a large RFID systems, active tags are likely to use due to their longer transmission distance. However, these battery-powered tags need to be recharged when they run out of energy. Recharging tens of thousands of tags is a laborious operation. Moreover, sometimes tagged products may be stacked up, which makes tags not easily accessible. To prolong the lifetime of tags and reduce the frequency of battery recharge, all functions that involve large-scale transmission by many tags should be energy-efficient. This chapter focuses on designing energy-efficient protocols for the estimation problems in large-scale RFID systems.
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Notes
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The fisher information [9] is a way of measuring the amount of information that an observable random variable x carries about an unknown parameter θ upon which the likelihood function of θ, L(θ) = f(x; θ), depends.
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Qiao, Y., Chen, S., Li, T. (2013). Tag Estimation in RFID Systems. In: RFID as an Infrastructure. SpringerBriefs in Computer Science. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-5230-0_2
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DOI: https://doi.org/10.1007/978-1-4614-5230-0_2
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