Optimum performance and spectral characterization of CE-OFDM signals

João Guerreiro; Rui Dinis; Paulo Miguel de Araújo Borges Montezuma de Carvalho

doi:10.1109/VTCFall.2015.7391060

Optimum performance and spectral characterization of CE-OFDM signals

João Guerreiro, Rui Dinis, Paulo Miguel de Araújo Borges Montezuma de Carvalho

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

7 Citations (Scopus)

Abstract

Orthogonal frequency division multiplexing (OFDM) modulations are very popular in wireless communications due to their flexibility and good performance over severely time-dispersive channels. However, OFDM signals have large peak-to-average power ratio (PAPR), which leads to amplification problems. Constant envelope OFDM (CE-OFDM) techniques use an OFDM signal to modulate the phase of a given carrier, allowing a 0 dB PAPR, with all inherent advantages. However, the phase modulator is a nonlinear device that can lead to performance degradation. In this paper, we take advantage of the Gaussian characteristics of OFDM signals to characterize analytically CE-OFDM signals, both in terms of power spectral density (PSD) and optimum asymptotic performance.

Original language	English
Title of host publication	2015 IEEE 82nd Vehicular Technology Conference, VTC Fall 2015 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
ISBN (Electronic)	978-1-4799-8091-8
DOIs	https://doi.org/10.1109/VTCFall.2015.7391060
Publication status	Published - 25 Jan 2016
Event	82nd IEEE Vehicular Technology Conference, VTC Fall 2015 - Boston, United States Duration: 6 Sept 2015 → 9 Sept 2015

Conference

Conference	82nd IEEE Vehicular Technology Conference, VTC Fall 2015
Country/Territory	United States
City	Boston
Period	6/09/15 → 9/09/15

Keywords

Envelope fluctuations
Gaussian signals
Nonlinear effects
OFDM

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10.1109/VTCFall.2015.7391060Licence: Unspecified

Cite this

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title = "Optimum performance and spectral characterization of CE-OFDM signals",

abstract = "Orthogonal frequency division multiplexing (OFDM) modulations are very popular in wireless communications due to their flexibility and good performance over severely time-dispersive channels. However, OFDM signals have large peak-to-average power ratio (PAPR), which leads to amplification problems. Constant envelope OFDM (CE-OFDM) techniques use an OFDM signal to modulate the phase of a given carrier, allowing a 0 dB PAPR, with all inherent advantages. However, the phase modulator is a nonlinear device that can lead to performance degradation. In this paper, we take advantage of the Gaussian characteristics of OFDM signals to characterize analytically CE-OFDM signals, both in terms of power spectral density (PSD) and optimum asymptotic performance.",

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author = "Jo{\~a}o Guerreiro and Rui Dinis and {Montezuma de Carvalho}, {Paulo Miguel de Ara{\'u}jo Borges}",

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Guerreiro, J, Dinis, R & Montezuma de Carvalho, PMDAB 2016, Optimum performance and spectral characterization of CE-OFDM signals. in 2015 IEEE 82nd Vehicular Technology Conference, VTC Fall 2015 - Proceedings., 7391060, Institute of Electrical and Electronics Engineers (IEEE), 82nd IEEE Vehicular Technology Conference, VTC Fall 2015, Boston, United States, 6/09/15. https://doi.org/10.1109/VTCFall.2015.7391060

Optimum performance and spectral characterization of CE-OFDM signals. / Guerreiro, João; Dinis, Rui ; Montezuma de Carvalho, Paulo Miguel de Araújo Borges.
2015 IEEE 82nd Vehicular Technology Conference, VTC Fall 2015 - Proceedings. Institute of Electrical and Electronics Engineers (IEEE), 2016. 7391060.

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

TY - GEN

T1 - Optimum performance and spectral characterization of CE-OFDM signals

AU - Guerreiro, João

AU - Dinis, Rui

AU - Montezuma de Carvalho, Paulo Miguel de Araújo Borges

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PY - 2016/1/25

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N2 - Orthogonal frequency division multiplexing (OFDM) modulations are very popular in wireless communications due to their flexibility and good performance over severely time-dispersive channels. However, OFDM signals have large peak-to-average power ratio (PAPR), which leads to amplification problems. Constant envelope OFDM (CE-OFDM) techniques use an OFDM signal to modulate the phase of a given carrier, allowing a 0 dB PAPR, with all inherent advantages. However, the phase modulator is a nonlinear device that can lead to performance degradation. In this paper, we take advantage of the Gaussian characteristics of OFDM signals to characterize analytically CE-OFDM signals, both in terms of power spectral density (PSD) and optimum asymptotic performance.

AB - Orthogonal frequency division multiplexing (OFDM) modulations are very popular in wireless communications due to their flexibility and good performance over severely time-dispersive channels. However, OFDM signals have large peak-to-average power ratio (PAPR), which leads to amplification problems. Constant envelope OFDM (CE-OFDM) techniques use an OFDM signal to modulate the phase of a given carrier, allowing a 0 dB PAPR, with all inherent advantages. However, the phase modulator is a nonlinear device that can lead to performance degradation. In this paper, we take advantage of the Gaussian characteristics of OFDM signals to characterize analytically CE-OFDM signals, both in terms of power spectral density (PSD) and optimum asymptotic performance.

KW - Envelope fluctuations

KW - Gaussian signals

KW - Nonlinear effects

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BT - 2015 IEEE 82nd Vehicular Technology Conference, VTC Fall 2015 - Proceedings

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T2 - 82nd IEEE Vehicular Technology Conference, VTC Fall 2015

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Optimum performance and spectral characterization of CE-OFDM signals

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Keywords

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