Performance evaluation of CO-OFDM systems based on electrical constant-envelope signals

V.O.C. Dias, Ezequiel da V. Pereira, Helder R.O. Rocha, Marcelo E.V. Segatto, Jair A.L. Silva

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)

Abstract

The influence of the electrical phase modulation index h in the performance of constant-envelope orthogonal frequency division multiplexing (CE-OFDM) in coherent detection optical systems is treated analytically and its range of validity examined by simulations. A compromise between h and subcarrier mapping is identified according to differences in sensitivity related to non-linearities inserted by the optical modulator. It is shown that the proposed scheme outperforms conventional coherent detection OFDM systems, which is strongly dependent on both phase and optical modulation indexes.
Original languageEnglish
Pages (from-to)30-34
Number of pages5
JournalOptical Fiber Technology
Volume37
DOIs
Publication statusPublished - 1 Sep 2017
Externally publishedYes

Keywords

  • Coherent detection
  • Constant-envelope
  • Orthogonal frequency division multiplexing
  • Phase modulation index

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