Impact of a Carrier Frequency Offset on Unique Word OFDM

Christian Hofbauer; Werner Haselmayr; Hans-peter Bernhard; Mario Huemer

doi:10.1109/pimrc48278.2020.9217195

Impact of a Carrier Frequency Offset on Unique Word OFDM

Christian Hofbauer, Werner Haselmayr, Hans-peter Bernhard, Mario Huemer

Wireless Communications (WLC)

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

Abstract

Communication systems have to cope with a variety of non-idealities. Among those, carrier frequency offset (CFO) induced impairments denote a challenging task for any system, but especially for multi-carrier schemes such as orthogonal frequency division multiplexing (OFDM). Unique Word-OFDM (UW-OFDM) is a known variant, which provides various performance benefits over conventional cyclic prefix (CP) based OFDM. In particular, UW-OFDM features excellent spectral sidelobe suppression properties and an outstanding bit error ratio performance. In this work, we expand the investigations to CFO impairments, analyze the varying effects experienced by different UW-OFDM realizations and compare it against conventional OFDM as well as single-carrier systems. Through an error analysis it is shown that compared to CP-OFDM, UW-OFDM has a significantly higher robustness against CFO. This advantage becomes even more dominant with an increasing CFO.

Original language	English
Title of host publication	2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications
Pages	1-7
Number of pages	7
DOIs	https://doi.org/10.1109/pimrc48278.2020.9217195
Publication status	Published - 1 Aug 2020
Event	2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications - London, United Kingdom Duration: 31 Aug 2020 → 3 Sept 2020

Conference

Conference	2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications
Period	31/08/20 → 3/09/20

Keywords

CP-OFDM
Carrier frequency offset
Pilot tone
UW-OFDM
Unique word

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10.1109/pimrc48278.2020.9217195

https://ieeexplore.ieee.org/document/9217195/

Cite this

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title = "Impact of a Carrier Frequency Offset on Unique Word OFDM",

abstract = "Communication systems have to cope with a variety of non-idealities. Among those, carrier frequency offset (CFO) induced impairments denote a challenging task for any system, but especially for multi-carrier schemes such as orthogonal frequency division multiplexing (OFDM). Unique Word-OFDM (UW-OFDM) is a known variant, which provides various performance benefits over conventional cyclic prefix (CP) based OFDM. In particular, UW-OFDM features excellent spectral sidelobe suppression properties and an outstanding bit error ratio performance. In this work, we expand the investigations to CFO impairments, analyze the varying effects experienced by different UW-OFDM realizations and compare it against conventional OFDM as well as single-carrier systems. Through an error analysis it is shown that compared to CP-OFDM, UW-OFDM has a significantly higher robustness against CFO. This advantage becomes even more dominant with an increasing CFO.",

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Hofbauer, C, Haselmayr, W, Bernhard, H & Huemer, M 2020, Impact of a Carrier Frequency Offset on Unique Word OFDM. in 2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications. pp. 1-7, 2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications, 31/08/20. https://doi.org/10.1109/pimrc48278.2020.9217195

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AU - Haselmayr, Werner

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N1 - DBLP License: DBLP's bibliographic metadata records provided through http://dblp.org/ are distributed under a Creative Commons CC0 1.0 Universal Public Domain Dedication. Although the bibliographic metadata records are provided consistent with CC0 1.0 Dedication, the content described by the metadata records is not. Content may be subject to copyright, rights of privacy, rights of publicity and other restrictions.

PY - 2020/8/1

Y1 - 2020/8/1

N2 - Communication systems have to cope with a variety of non-idealities. Among those, carrier frequency offset (CFO) induced impairments denote a challenging task for any system, but especially for multi-carrier schemes such as orthogonal frequency division multiplexing (OFDM). Unique Word-OFDM (UW-OFDM) is a known variant, which provides various performance benefits over conventional cyclic prefix (CP) based OFDM. In particular, UW-OFDM features excellent spectral sidelobe suppression properties and an outstanding bit error ratio performance. In this work, we expand the investigations to CFO impairments, analyze the varying effects experienced by different UW-OFDM realizations and compare it against conventional OFDM as well as single-carrier systems. Through an error analysis it is shown that compared to CP-OFDM, UW-OFDM has a significantly higher robustness against CFO. This advantage becomes even more dominant with an increasing CFO.

AB - Communication systems have to cope with a variety of non-idealities. Among those, carrier frequency offset (CFO) induced impairments denote a challenging task for any system, but especially for multi-carrier schemes such as orthogonal frequency division multiplexing (OFDM). Unique Word-OFDM (UW-OFDM) is a known variant, which provides various performance benefits over conventional cyclic prefix (CP) based OFDM. In particular, UW-OFDM features excellent spectral sidelobe suppression properties and an outstanding bit error ratio performance. In this work, we expand the investigations to CFO impairments, analyze the varying effects experienced by different UW-OFDM realizations and compare it against conventional OFDM as well as single-carrier systems. Through an error analysis it is shown that compared to CP-OFDM, UW-OFDM has a significantly higher robustness against CFO. This advantage becomes even more dominant with an increasing CFO.

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ER -

Impact of a Carrier Frequency Offset on Unique Word OFDM

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