Low-PAPR Layered/Enhanced ACO-SCFDM for Optical-Wireless Communications

Ji Zhou, Qi Wang, Qixiang Cheng, Mengqi Guo, Yueming Lu, Aiying Yang, Yaojun Qiao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

In this letter, we propose layered/enhanced asymmetrically clipped optical single-carrier frequency-division multiplexing (L/E-ACO-SCFDM) for optical-wireless communications. L/E-ACO-SCFDMhas a lower computational complexity and peak-to-average power ratio (PAPR) than L/E-ACO orthogonal frequency-division multiplexing (L/E-ACO-OFDM). The computational complexity of the simplified transmitter in L/EACO-SCFDM with R layers is (2 - 2/2R)O(N), which is lower than the computational complexity of (2 - 2/2R)O(Nlog2N) in L/E-ACO-OFDM. At a complementary cumulative distribution function of 10-3, the PAPR of L/E-ACO-SCFDM is approximately 4.2, 3.4, and 2.7 dB lower than that of L/E-ACO-OFDM for 2, 3, and 4 layers, respectively. The simulation results indicate that L/E-ACO-SCFDM has better performance than L/E-ACOOFDM under the transmitter nonlinearity and multipath fading.

Original languageEnglish
Article number8126832
Pages (from-to)165-168
Number of pages4
JournalIEEE Photonics Technology Letters
Volume30
Issue number2
DOIs
Publication statusPublished - 15 Jan 2018

Keywords

  • Low PAPR
  • layered/enhanced ACO-SCFDM
  • low computational complexity
  • optical-wireless communications

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