Peak-to-average power reduction by rotation of the time-frequency representation

C.W. Korevaar; Pieter-Tjerk de Boer; Andre B.J. Kokkeler; Gerardus Johannes Maria Smit

doi:10.1109/GLOCOM.2013.6831652

Peak-to-average power reduction by rotation of the time-frequency representation

C.W. Korevaar, Pieter-Tjerk de Boer, Andre B.J. Kokkeler, Gerardus Johannes Maria Smit

Research output: Contribution to conference › Paper › peer-review

8 Citations (Scopus)

10 Downloads (Pure)

Abstract

Multi-carrier communication is associated with a high peak-to-average power ratio (PAPR). A new PAPR reduction method is proposed which is based on rotating the time-frequency representation of a transmit signal, prior to transmission. In general, a time-frequency rotation of a multi-carrier signal would change the signal basis, affecting the robustness of the transmit signal in fading channels. Exceptions are transmit signals constructed by (modulated) Hermite functions. The PAPR has been analyzed for transmit signals based on 64 Hermite functions. Allowing a rotation over 16 angles in time-frequency, the PAPR, which occurs with a probability of 0.001, is reduced by 3.8 dB at the cost of an increased computational complexity and a minor loss in spectral efficiency.

Original language	Undefined
Pages	3722-3727
Number of pages	6
DOIs	https://doi.org/10.1109/GLOCOM.2013.6831652
Publication status	Published - Dec 2013
Event	2013 IEEE Global Communications Conference, GLOBECOM 2013: The Power of Global Communications - Atlanta, United States Duration: 9 Dec 2013 → 13 Dec 2013 http://globecom2013.ieee-globecom.org/

Conference

Conference	2013 IEEE Global Communications Conference, GLOBECOM 2013
Abbreviated title	GLOBECOM
Country/Territory	United States
City	Atlanta
Period	9/12/13 → 13/12/13
Internet address	http://globecom2013.ieee-globecom.org/

Keywords

time-frequency rotations
papr reduction
OFDM
crest factor
EWI-24065
Hermite functions
IR-95866
Time-frequency analysis

Access to Document

10.1109/GLOCOM.2013.6831652

http://eprints.eemcs.utwente.nl/secure2/24065/01/20130801_PAPR_reduction_by_TFR_-_C.W._Korevaar_-_GlobeCom_2013_CR.pdf

Cite this

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title = "Peak-to-average power reduction by rotation of the time-frequency representation",

abstract = "Multi-carrier communication is associated with a high peak-to-average power ratio (PAPR). A new PAPR reduction method is proposed which is based on rotating the time-frequency representation of a transmit signal, prior to transmission. In general, a time-frequency rotation of a multi-carrier signal would change the signal basis, affecting the robustness of the transmit signal in fading channels. Exceptions are transmit signals constructed by (modulated) Hermite functions. The PAPR has been analyzed for transmit signals based on 64 Hermite functions. Allowing a rotation over 16 angles in time-frequency, the PAPR, which occurs with a probability of 0.001, is reduced by 3.8 dB at the cost of an increased computational complexity and a minor loss in spectral efficiency.",

keywords = "time-frequency rotations, papr reduction, OFDM, crest factor, EWI-24065, Hermite functions, IR-95866, Time-frequency analysis",

author = "C.W. Korevaar and {de Boer}, Pieter-Tjerk and Kokkeler, {Andre B.J.} and Smit, {Gerardus Johannes Maria}",

year = "2013",

month = dec,

doi = "10.1109/GLOCOM.2013.6831652",

language = "Undefined",

pages = "3722--3727",

note = "2013 IEEE Global Communications Conference, GLOBECOM 2013 ; Conference date: 09-12-2013 Through 13-12-2013",

url = "http://globecom2013.ieee-globecom.org/",

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TY - CONF

T1 - Peak-to-average power reduction by rotation of the time-frequency representation

AU - Korevaar, C.W.

AU - de Boer, Pieter-Tjerk

AU - Kokkeler, Andre B.J.

AU - Smit, Gerardus Johannes Maria

PY - 2013/12

Y1 - 2013/12

N2 - Multi-carrier communication is associated with a high peak-to-average power ratio (PAPR). A new PAPR reduction method is proposed which is based on rotating the time-frequency representation of a transmit signal, prior to transmission. In general, a time-frequency rotation of a multi-carrier signal would change the signal basis, affecting the robustness of the transmit signal in fading channels. Exceptions are transmit signals constructed by (modulated) Hermite functions. The PAPR has been analyzed for transmit signals based on 64 Hermite functions. Allowing a rotation over 16 angles in time-frequency, the PAPR, which occurs with a probability of 0.001, is reduced by 3.8 dB at the cost of an increased computational complexity and a minor loss in spectral efficiency.

AB - Multi-carrier communication is associated with a high peak-to-average power ratio (PAPR). A new PAPR reduction method is proposed which is based on rotating the time-frequency representation of a transmit signal, prior to transmission. In general, a time-frequency rotation of a multi-carrier signal would change the signal basis, affecting the robustness of the transmit signal in fading channels. Exceptions are transmit signals constructed by (modulated) Hermite functions. The PAPR has been analyzed for transmit signals based on 64 Hermite functions. Allowing a rotation over 16 angles in time-frequency, the PAPR, which occurs with a probability of 0.001, is reduced by 3.8 dB at the cost of an increased computational complexity and a minor loss in spectral efficiency.

KW - time-frequency rotations

KW - papr reduction

KW - OFDM

KW - crest factor

KW - EWI-24065

KW - Hermite functions

KW - IR-95866

KW - Time-frequency analysis

U2 - 10.1109/GLOCOM.2013.6831652

DO - 10.1109/GLOCOM.2013.6831652

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ER -