Fractional Delayed Detection For Unstable Subcarrier-Coded Backscatter Link

Zidan Zhao; Jin Mitsugi

doi:10.1109/RFID-TA58140.2023.10290564

Fractional Delayed Detection For Unstable Subcarrier-Coded Backscatter Link

Zidan Zhao
, Jin Mitsugi

Faculty of Environment and Information Studies

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper proposes a carrier recovery method for subcarrier-coded backscatter links using a fractional, less than one-symbol, delayed detection. The fractional delayed detection extends the permissible subcarrier frequency errors but results in an unbalanced distribution of delayed symbols. This paper reveals the contribution of fractional detection in RFID sensing systems, particularly the system with an FDMA backscatter to collect streaming data. The unbalanced symbol distribution problem is resolved using a principal component analysis (PCA) of delayed symbols. The fractional delayed detection was evaluated both with a MATLAB simulation and a combination of a software-defined interrogator and a prototype wireless sensor. Both evaluations showed the effectiveness of the proposal.

Original language	English
Title of host publication	2023 IEEE 13th International Conference on RFID Technology and Applications, RFID-TA 2023 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	253-256
Number of pages	4
ISBN (Electronic)	9798350333534
DOIs	https://doi.org/10.1109/RFID-TA58140.2023.10290564
Publication status	Published - 2023
Event	13th IEEE International Conference on RFID Technology and Applications, RFID-TA 2023 - Aveiro, Portugal Duration: 2023 Sept 4 → 2023 Sept 6

Publication series

Name	2023 IEEE 13th International Conference on RFID Technology and Applications, RFID-TA 2023 - Proceedings

Conference

Conference	13th IEEE International Conference on RFID Technology and Applications, RFID-TA 2023
Country/Territory	Portugal
City	Aveiro
Period	23/9/4 → 23/9/6

Keywords

Index
PCA
backscatter communication
fractional delay
one symbol delay
subcarrier

ASJC Scopus subject areas

Computer Networks and Communications
Computer Science Applications
Control and Optimization
Instrumentation

Access to Document

10.1109/RFID-TA58140.2023.10290564

Cite this

Zhao, Z., & Mitsugi, J. (2023). Fractional Delayed Detection For Unstable Subcarrier-Coded Backscatter Link. In 2023 IEEE 13th International Conference on RFID Technology and Applications, RFID-TA 2023 - Proceedings (pp. 253-256). (2023 IEEE 13th International Conference on RFID Technology and Applications, RFID-TA 2023 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RFID-TA58140.2023.10290564

Fractional Delayed Detection For Unstable Subcarrier-Coded Backscatter Link. / Zhao, Zidan; Mitsugi, Jin.
2023 IEEE 13th International Conference on RFID Technology and Applications, RFID-TA 2023 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2023. p. 253-256 (2023 IEEE 13th International Conference on RFID Technology and Applications, RFID-TA 2023 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zhao, Z & Mitsugi, J 2023, Fractional Delayed Detection For Unstable Subcarrier-Coded Backscatter Link. in 2023 IEEE 13th International Conference on RFID Technology and Applications, RFID-TA 2023 - Proceedings. 2023 IEEE 13th International Conference on RFID Technology and Applications, RFID-TA 2023 - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 253-256, 13th IEEE International Conference on RFID Technology and Applications, RFID-TA 2023, Aveiro, Portugal, 23/9/4. https://doi.org/10.1109/RFID-TA58140.2023.10290564

Zhao Z, Mitsugi J. Fractional Delayed Detection For Unstable Subcarrier-Coded Backscatter Link. In 2023 IEEE 13th International Conference on RFID Technology and Applications, RFID-TA 2023 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2023. p. 253-256. (2023 IEEE 13th International Conference on RFID Technology and Applications, RFID-TA 2023 - Proceedings). doi: 10.1109/RFID-TA58140.2023.10290564

Zhao, Zidan ; Mitsugi, Jin. / Fractional Delayed Detection For Unstable Subcarrier-Coded Backscatter Link. 2023 IEEE 13th International Conference on RFID Technology and Applications, RFID-TA 2023 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2023. pp. 253-256 (2023 IEEE 13th International Conference on RFID Technology and Applications, RFID-TA 2023 - Proceedings).

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abstract = "This paper proposes a carrier recovery method for subcarrier-coded backscatter links using a fractional, less than one-symbol, delayed detection. The fractional delayed detection extends the permissible subcarrier frequency errors but results in an unbalanced distribution of delayed symbols. This paper reveals the contribution of fractional detection in RFID sensing systems, particularly the system with an FDMA backscatter to collect streaming data. The unbalanced symbol distribution problem is resolved using a principal component analysis (PCA) of delayed symbols. The fractional delayed detection was evaluated both with a MATLAB simulation and a combination of a software-defined interrogator and a prototype wireless sensor. Both evaluations showed the effectiveness of the proposal.",

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AB - This paper proposes a carrier recovery method for subcarrier-coded backscatter links using a fractional, less than one-symbol, delayed detection. The fractional delayed detection extends the permissible subcarrier frequency errors but results in an unbalanced distribution of delayed symbols. This paper reveals the contribution of fractional detection in RFID sensing systems, particularly the system with an FDMA backscatter to collect streaming data. The unbalanced symbol distribution problem is resolved using a principal component analysis (PCA) of delayed symbols. The fractional delayed detection was evaluated both with a MATLAB simulation and a combination of a software-defined interrogator and a prototype wireless sensor. Both evaluations showed the effectiveness of the proposal.

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Fractional Delayed Detection For Unstable Subcarrier-Coded Backscatter Link

Abstract

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Keywords

ASJC Scopus subject areas

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