A better channel code than FM0 for next-generation RFID

Abstract

We present an optimized modulation scheme that outperforms EPC UHF Gen2's FM0 protocol in terms of throughput without compromising power consumption, signal fidelity, or RFID chip complexity. We analyze a rate 6/8-balance code, which increases throughput by 50%, to show how fidelity and complexity compares favorably to the current Gen2 FM0 backscatter modulation scheme. This improvement could be used to singulate larger fields of RFID tags faster or to retrieve larger blocks of information from sensors/tags of the future.