Pilot Tone Insertion and Utilization in Unique Word OFDM

Christian Hofbauer; Werner Haselmayr; Mario Huemer

doi:10.1109/SPAWC48557.2020.9154247

Pilot Tone Insertion and Utilization in Unique Word OFDM

Christian Hofbauer, Werner Haselmayr, Mario Huemer

Research output: Conference proceeding/Chapter in Book/Report/ › Conference Paper › peer-review

Abstract

Unique word-orthogonal frequency division multiplexing (UW-OFDM) provides several performance benefits over conventional cyclic prefix (CP) based OFDM, such as excellent spectral sidelobe suppression properties and an outstanding bit error ratio performance. Aside from idealized assumptions, each communication system faces challenges in conducting various system parameter estimation tasks. This work extends the current UW-OFDM signaling scheme by optimally including pilots tones in the frequency domain. Pilot tone based estimation of a carrier frequency offset (CFO) is conducted as a practical estimation example. Simulation results in a multipath environment demonstrate a significantly increased estimation accuracy in UW-OFDM over CP-OFDM, a result predicated on the inherent redundancy present in an UW-OFDM signal. The difference in estimation quality gets even more dominant with increasing CFO.

Original language	English
Title of host publication	2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Publisher	IEEE Computer Society
Pages	1-5
Number of pages	5
ISBN (Print)	978-1-7281-5479-4
DOIs	https://doi.org/10.1109/SPAWC48557.2020.9154247
Publication status	Published - 29 May 2020
Event	2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) - Atlanta, GA, USA Duration: 26 May 2020 → 29 May 2020

Conference

Conference	2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Period	26/05/20 → 29/05/20

Keywords

OFDM
Estimation
Frequency-domain analysis
Time-domain analysis
Optimization
Generators
Discrete Fourier transforms

Access to Document

10.1109/SPAWC48557.2020.9154247

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9154247

Cite this

@inproceedings{5720742bceed48a98cf0d691bb1714c9,

title = "Pilot Tone Insertion and Utilization in Unique Word OFDM",

abstract = "Unique word-orthogonal frequency division multiplexing (UW-OFDM) provides several performance benefits over conventional cyclic prefix (CP) based OFDM, such as excellent spectral sidelobe suppression properties and an outstanding bit error ratio performance. Aside from idealized assumptions, each communication system faces challenges in conducting various system parameter estimation tasks. This work extends the current UW-OFDM signaling scheme by optimally including pilots tones in the frequency domain. Pilot tone based estimation of a carrier frequency offset (CFO) is conducted as a practical estimation example. Simulation results in a multipath environment demonstrate a significantly increased estimation accuracy in UW-OFDM over CP-OFDM, a result predicated on the inherent redundancy present in an UW-OFDM signal. The difference in estimation quality gets even more dominant with increasing CFO.",

keywords = "OFDM, Estimation, Frequency-domain analysis, Time-domain analysis, Optimization, Generators, Discrete Fourier transforms",

author = "Christian Hofbauer and Werner Haselmayr and Mario Huemer",

year = "2020",

month = may,

day = "29",

doi = "10.1109/SPAWC48557.2020.9154247",

language = "English",

isbn = "978-1-7281-5479-4",

pages = "1--5",

booktitle = "2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)",

publisher = "IEEE Computer Society",

address = "United States",

note = "2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) ; Conference date: 26-05-2020 Through 29-05-2020",

}

Hofbauer, C, Haselmayr, W & Huemer, M 2020, Pilot Tone Insertion and Utilization in Unique Word OFDM. in 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)., 9154247, IEEE Computer Society, pp. 1-5, 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 26/05/20. https://doi.org/10.1109/SPAWC48557.2020.9154247

TY - GEN

T1 - Pilot Tone Insertion and Utilization in Unique Word OFDM

AU - Hofbauer, Christian

AU - Haselmayr, Werner

AU - Huemer, Mario

PY - 2020/5/29

Y1 - 2020/5/29

N2 - Unique word-orthogonal frequency division multiplexing (UW-OFDM) provides several performance benefits over conventional cyclic prefix (CP) based OFDM, such as excellent spectral sidelobe suppression properties and an outstanding bit error ratio performance. Aside from idealized assumptions, each communication system faces challenges in conducting various system parameter estimation tasks. This work extends the current UW-OFDM signaling scheme by optimally including pilots tones in the frequency domain. Pilot tone based estimation of a carrier frequency offset (CFO) is conducted as a practical estimation example. Simulation results in a multipath environment demonstrate a significantly increased estimation accuracy in UW-OFDM over CP-OFDM, a result predicated on the inherent redundancy present in an UW-OFDM signal. The difference in estimation quality gets even more dominant with increasing CFO.

AB - Unique word-orthogonal frequency division multiplexing (UW-OFDM) provides several performance benefits over conventional cyclic prefix (CP) based OFDM, such as excellent spectral sidelobe suppression properties and an outstanding bit error ratio performance. Aside from idealized assumptions, each communication system faces challenges in conducting various system parameter estimation tasks. This work extends the current UW-OFDM signaling scheme by optimally including pilots tones in the frequency domain. Pilot tone based estimation of a carrier frequency offset (CFO) is conducted as a practical estimation example. Simulation results in a multipath environment demonstrate a significantly increased estimation accuracy in UW-OFDM over CP-OFDM, a result predicated on the inherent redundancy present in an UW-OFDM signal. The difference in estimation quality gets even more dominant with increasing CFO.

KW - OFDM

KW - Estimation

KW - Frequency-domain analysis

KW - Time-domain analysis

KW - Optimization

KW - Generators

KW - Discrete Fourier transforms

UR - https://ieeexplore.ieee.org/document/9154247/

U2 - 10.1109/SPAWC48557.2020.9154247

DO - 10.1109/SPAWC48557.2020.9154247

M3 - Conference Paper

SN - 978-1-7281-5479-4

SP - 1

EP - 5

BT - 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)

PB - IEEE Computer Society

T2 - 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)

Y2 - 26 May 2020 through 29 May 2020

ER -

Pilot Tone Insertion and Utilization in Unique Word OFDM

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