Optimum performance and spectral characterization of CE-OFDM signals

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 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 languageEnglish
Title of host publication2015 IEEE 82nd Vehicular Technology Conference, VTC Fall 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)978-1-4799-8091-8
DOIs
Publication statusPublished - 25 Jan 2016
Event82nd IEEE Vehicular Technology Conference, VTC Fall 2015 - Boston, United States
Duration: 6 Sep 20159 Sep 2015

Conference

Conference82nd IEEE Vehicular Technology Conference, VTC Fall 2015
CountryUnited States
CityBoston
Period6/09/159/09/15

Keywords

  • Envelope fluctuations
  • Gaussian signals
  • Nonlinear effects
  • OFDM

Fingerprint Dive into the research topics of 'Optimum performance and spectral characterization of CE-OFDM signals'. Together they form a unique fingerprint.

  • Cite this

    Guerreiro, J., Dinis, R., & Montezuma de Carvalho, P. M. D. A. B. (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 Inc.. https://doi.org/10.1109/VTCFall.2015.7391060