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: Chapter in Book/Report/Conference proceeding › Conference proceedings › 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	Proceedings of the IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2020)
Publisher	IEEE
Number of pages	5
ISBN (Electronic)	9781728154787
ISBN (Print)	978-1-7281-5478-7
DOIs	https://doi.org/10.1109/SPAWC48557.2020.9154247
Publication status	Published - May 2020

Fields of science

202038 Telecommunications
202 Electrical Engineering, Electronics, Information Engineering
202030 Communication engineering
202037 Signal processing

JKU Focus areas

Digital Transformation

Access to Document

10.1109/SPAWC48557.2020.9154247

Cite this

@inproceedings{3955613af9db492b894201072b449edd,

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.",

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

year = "2020",

month = may,

doi = "10.1109/SPAWC48557.2020.9154247",

language = "English",

isbn = "978-1-7281-5478-7",

booktitle = "Proceedings of the IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2020)",

publisher = "IEEE",

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TY - GEN

T1 - Pilot Tone Insertion and Utilization in Unique Word OFDM

AU - Hofbauer, Christian

AU - Haselmayr, Werner

AU - Huemer, Mario

PY - 2020/5

Y1 - 2020/5

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.

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

U2 - 10.1109/SPAWC48557.2020.9154247

DO - 10.1109/SPAWC48557.2020.9154247

M3 - Conference proceedings

SN - 978-1-7281-5478-7

BT - Proceedings of the IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2020)

PB - IEEE

ER -

Pilot Tone Insertion and Utilization in Unique Word OFDM

Abstract

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Unique-Word-Based OFDM

Cite this

Pilot Tone Insertion and Utilization in Unique Word OFDM

Abstract

Fields of science

JKU Focus areas

Access to Document

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Unique-Word-Based OFDM

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