Multipacket Reception of Passive UHF RFID Tags: A Communication Theoretic Approach

This paper develops a communication theoretic model for the design and analysis at the physical layer of a reader receiver structure for passive UHF Radio Frequency IDentification (RFID). This is to attain multi-packet reception capabilities which in turn help the fast resolution of multiple tags through a more rapid and power efficient arbitration of the tags collisions. In particular, the authors derive a parametric continuous time model for the subspace of a tag signal at the noisy receiver/reader, which in addition to being affected by fading and receiver delay, exhibits wide variations in the symbol frequency and transmission delay, due to imperfections in the RFID hardware design.

Provided by: Institute of Electrical & Electronic Engineers Topic: Mobility Date Added: Sep 2011 Format: PDF

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