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Signals received at the interrogator of an **RFID** system always suffer from various kinds of channel deformation factors, such as the path loss of the wireless channel, insufficient channel bandwidth resulted from the multipath propagation, and the carrier frequency offset between tags and interrogators. In this paper we proposed a novel Viterbi-based algorithm for joint detection of data sequence and compensation of distorted signal waveform. With the assumption that the transmission clock is exactly synchronized at the reader, the proposed algorithm takes advantage of the structured data-encoded waveform to represent the modulation scheme of the RFID system as a trellis diagram and then the Viterbi algorithm is applicable to perform data sequence estimation. Furthermore, to compensate the distorted symbol waveform, the proposed Jiggle-Viterbi algorithm generates two substates, each corresponding to a variant structure waveform with adjustable temporal support, so that the symbol waveform deformation can be compensated and therefore yield a significant better performance in terms of bit error rate. Computer simulations shows that even in the presence of a moderate carrier frequency offset, the proposed approach can work out with an acceptable accuracy on data sequence detection.

- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E93-A No.11 pp.2108-2114

- Publication Date
- 2010/11/01

- Publicized

- Online ISSN
- 1745-1337

- DOI
- 10.1587/transfun.E93.A.2108

- Type of Manuscript
- Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)

- Category

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Yung-Yi WANG, Jiunn-Tsair CHEN, "The Jiggle-Viterbi Algorithm for the RFID Reader Using Structured Data-Encoded Waveforms" in IEICE TRANSACTIONS on Fundamentals,
vol. E93-A, no. 11, pp. 2108-2114, November 2010, doi: 10.1587/transfun.E93.A.2108.

Abstract: Signals received at the interrogator of an **RFID** system always suffer from various kinds of channel deformation factors, such as the path loss of the wireless channel, insufficient channel bandwidth resulted from the multipath propagation, and the carrier frequency offset between tags and interrogators. In this paper we proposed a novel Viterbi-based algorithm for joint detection of data sequence and compensation of distorted signal waveform. With the assumption that the transmission clock is exactly synchronized at the reader, the proposed algorithm takes advantage of the structured data-encoded waveform to represent the modulation scheme of the RFID system as a trellis diagram and then the Viterbi algorithm is applicable to perform data sequence estimation. Furthermore, to compensate the distorted symbol waveform, the proposed Jiggle-Viterbi algorithm generates two substates, each corresponding to a variant structure waveform with adjustable temporal support, so that the symbol waveform deformation can be compensated and therefore yield a significant better performance in terms of bit error rate. Computer simulations shows that even in the presence of a moderate carrier frequency offset, the proposed approach can work out with an acceptable accuracy on data sequence detection.

URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E93.A.2108/_p

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@ARTICLE{e93-a_11_2108,

author={Yung-Yi WANG, Jiunn-Tsair CHEN, },

journal={IEICE TRANSACTIONS on Fundamentals},

title={The Jiggle-Viterbi Algorithm for the RFID Reader Using Structured Data-Encoded Waveforms},

year={2010},

volume={E93-A},

number={11},

pages={2108-2114},

abstract={Signals received at the interrogator of an **RFID** system always suffer from various kinds of channel deformation factors, such as the path loss of the wireless channel, insufficient channel bandwidth resulted from the multipath propagation, and the carrier frequency offset between tags and interrogators. In this paper we proposed a novel Viterbi-based algorithm for joint detection of data sequence and compensation of distorted signal waveform. With the assumption that the transmission clock is exactly synchronized at the reader, the proposed algorithm takes advantage of the structured data-encoded waveform to represent the modulation scheme of the RFID system as a trellis diagram and then the Viterbi algorithm is applicable to perform data sequence estimation. Furthermore, to compensate the distorted symbol waveform, the proposed Jiggle-Viterbi algorithm generates two substates, each corresponding to a variant structure waveform with adjustable temporal support, so that the symbol waveform deformation can be compensated and therefore yield a significant better performance in terms of bit error rate. Computer simulations shows that even in the presence of a moderate carrier frequency offset, the proposed approach can work out with an acceptable accuracy on data sequence detection.},

keywords={},

doi={10.1587/transfun.E93.A.2108},

ISSN={1745-1337},

month={November},}

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TY - JOUR

TI - The Jiggle-Viterbi Algorithm for the RFID Reader Using Structured Data-Encoded Waveforms

T2 - IEICE TRANSACTIONS on Fundamentals

SP - 2108

EP - 2114

AU - Yung-Yi WANG

AU - Jiunn-Tsair CHEN

PY - 2010

DO - 10.1587/transfun.E93.A.2108

JO - IEICE TRANSACTIONS on Fundamentals

SN - 1745-1337

VL - E93-A

IS - 11

JA - IEICE TRANSACTIONS on Fundamentals

Y1 - November 2010

AB - Signals received at the interrogator of an **RFID** system always suffer from various kinds of channel deformation factors, such as the path loss of the wireless channel, insufficient channel bandwidth resulted from the multipath propagation, and the carrier frequency offset between tags and interrogators. In this paper we proposed a novel Viterbi-based algorithm for joint detection of data sequence and compensation of distorted signal waveform. With the assumption that the transmission clock is exactly synchronized at the reader, the proposed algorithm takes advantage of the structured data-encoded waveform to represent the modulation scheme of the RFID system as a trellis diagram and then the Viterbi algorithm is applicable to perform data sequence estimation. Furthermore, to compensate the distorted symbol waveform, the proposed Jiggle-Viterbi algorithm generates two substates, each corresponding to a variant structure waveform with adjustable temporal support, so that the symbol waveform deformation can be compensated and therefore yield a significant better performance in terms of bit error rate. Computer simulations shows that even in the presence of a moderate carrier frequency offset, the proposed approach can work out with an acceptable accuracy on data sequence detection.

ER -