The continuous-time peak-to-average power ratio of OFDM signals using complex modulation schemes

K. Daniel Wong, Man On Pun, H. Vincent Poor

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

Computing the continuous-time peak-to-averagepower ratio (PAPR) of OFDM signals is computationally challenging. The pioneering work by Tellambura applies only to OFDM signals using real-valued modulation schemes. In this paper, a practical technique for evaluating the continuous-time PAPR of OFDM signals using complex modulation is presented. Using the proposed scheme, it is confirmed that the four-time oversampled discrete-time PAPR is a good approximation of the continuous-time PAPR even for complex OFDM signals. Furthermore, the proposed scheme is employed to verify some existing analytical bounds on continuous PAPR in the literature.

Original languageEnglish (US)
Pages (from-to)1390-1393
Number of pages4
JournalIEEE Transactions on Communications
Volume56
Issue number9
DOIs
StatePublished - Oct 6 2008

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • Multicarrier modulation
  • OFDM
  • PAPR
  • Peak-to-average-power ratio

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