Anonymous Cardinality Estimation in RFID Systems With Multiple Readers

Date Added: Aug 2009
Format: PDF

In this paper, the authors study the anonymous cardinality estimation problem in Radio Frequency IDentification (RFID) systems. To preserve privacy and anonymity, each tag only transmits a portion of its ID to the reader when it is being queried. To achieve complete system coverage and increase the accuracy of measurement, multiple readers with overlapping interrogation zones are deployed. The cardinality estimation problem is to estimate the total number of tags (or the tag population) in an RFID system.