Performance evaluation of OFDM with a nonlinear distortion compensation technique using partial transmit sequence and predistortion

Takaaki Horiuchi, Weizu Yang, Tomoaki Ohtsuki, Iwao Sasase

Research output: Contribution to journalArticle

Abstract

As a conventional method of compensating the nonlinear distortion in OFDM (orthogonal frequency division multiplexing), LCP-COFDM (linearized constant peak-power coded OFDM) has been proposed. In LCP-COFDM, however, the signal power is reduced by the linear compression (constant peak amplitude) process, which degrades the noise immunity and degrades the BER (bit error rate) characteristic. Consequently, this paper proposes a nonlinear distortion compensation scheme in which the BER is improved by combining LCP-COFDM with the partial transmit sequence. As a result of performance evaluation by computer simulation, it is shown that the proposed method can improve the BER with nearly the same out-band radiation reduction as conventional LCP-COFDM.

Original languageEnglish
Pages (from-to)34-42
Number of pages9
JournalElectronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume87
Issue number6
DOIs
Publication statusPublished - 2004 Jun

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Keywords

  • LCP-COFDM
  • Nonlinear distortion
  • OFDM
  • Partial transmit sequence
  • Predistortion

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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