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This work investigates the anonymous tag cardinality estimation problem in radio frequency identification systems with frame slotted aloha-based protocol. Each tag, instead of sending its identity upon receiving the reader's request, randomly responds by only one bit in one of the time slots of the frame due to privacy and security. As a result, each slot with no response is observed as in an empty...
This paper Investigates designing efficient communication schemes to monitor and to identify missing tags in CDMA-based RFID systems in a short period of time. In our considered systems, each CDMA tag is assigned with an unique Gold code, and randomly responds to the RFID reader thanks to the Frame Slotted ALOHA-based protocol. The de-correlating detector is implemented at the reader to eliminate...
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