Low-Power Data Driven Symbol Decoder for a UHF Passive RFID Tag

Authors: Sai, Vyasa; Ogirala, Ajay; Mickle, Marlin H.

Source: Journal of Low Power Electronics, Volume 8, Number 1, February 2012 , pp. 58-62(5)

Publisher: American Scientific Publishers

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Abstract:

One of the significant sources of power consumption of a conventional UHF passive RFID tag is the input data decoding procedure. These tags use a high frequency clocked symbol decoder block to implement the decoding process. This paper proposes a low-area low-power data driven decoder that eliminates the need for a high frequency oscillator, counter and an explicit clock, which are generally used by the conventional symbol RFID tag decoders. The proposed data driven unit consisting of a decoder including a CRC-16 block has been designed and implemented. The post-layout simulation results of the proposed symbol decoder clearly show that there is a significant reduction in power consumption when compared to a conventional decoder unit of a UHF passive tag that was also designed using the same tools and libraries.

Keywords: LOW-POWER DESIGN; DATA DRIVEN; SYMBOL DECODER; RFID SIMULATION; RFID TAG

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jolpe.2012.1169

Publication date: 2012-02-01

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The electronic systems that can operate with very low power are of great technological interest. The growing research activity in the field of low power electronics requires a forum for rapid dissemination of important results: Journal of Low Power Electronics (JOLPE) is that international forum which offers scientists and engineers timely, peer-reviewed research in this field.
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