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

Research output: Contribution to conferencePaperAcademicpeer-review

6 Citations (Scopus)

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 languageUndefined
Pages3722-3727
Number of pages6
DOIs
Publication statusPublished - Dec 2013
Event2013 IEEE Global Communications Conference, GLOBECOM 2013: The Power of Global Communications - Atlanta, United States
Duration: 9 Dec 201313 Dec 2013
http://globecom2013.ieee-globecom.org/

Conference

Conference2013 IEEE Global Communications Conference, GLOBECOM 2013
Abbreviated titleGLOBECOM
CountryUnited States
CityAtlanta
Period9/12/1313/12/13
Internet address

Keywords

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

Cite this

Korevaar, C. W., de Boer, P-T., Kokkeler, A. B. J., & Smit, G. J. M. (2013). Peak-to-average power reduction by rotation of the time-frequency representation. 3722-3727. Paper presented at 2013 IEEE Global Communications Conference, GLOBECOM 2013, Atlanta, United States. https://doi.org/10.1109/GLOCOM.2013.6831652
Korevaar, C.W. ; de Boer, Pieter-Tjerk ; Kokkeler, Andre B.J. ; Smit, Gerardus Johannes Maria. / Peak-to-average power reduction by rotation of the time-frequency representation. Paper presented at 2013 IEEE Global Communications Conference, GLOBECOM 2013, Atlanta, United States.6 p.
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note = "null ; Conference date: 09-12-2013 Through 13-12-2013",
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Korevaar, CW, de Boer, P-T, Kokkeler, ABJ & Smit, GJM 2013, 'Peak-to-average power reduction by rotation of the time-frequency representation' Paper presented at 2013 IEEE Global Communications Conference, GLOBECOM 2013, Atlanta, United States, 9/12/13 - 13/12/13, pp. 3722-3727. https://doi.org/10.1109/GLOCOM.2013.6831652

Peak-to-average power reduction by rotation of the time-frequency representation. / Korevaar, C.W.; de Boer, Pieter-Tjerk; Kokkeler, Andre B.J.; Smit, Gerardus Johannes Maria.

2013. 3722-3727 Paper presented at 2013 IEEE Global Communications Conference, GLOBECOM 2013, Atlanta, United States.

Research output: Contribution to conferencePaperAcademicpeer-review

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

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Korevaar CW, de Boer P-T, Kokkeler ABJ, Smit GJM. Peak-to-average power reduction by rotation of the time-frequency representation. 2013. Paper presented at 2013 IEEE Global Communications Conference, GLOBECOM 2013, Atlanta, United States. https://doi.org/10.1109/GLOCOM.2013.6831652