Performance analysis of modified asymmetrically-clipped optical orthogonal frequency-division multiplexing systems

Salma Mohamed, Hossam Shalaby, Ivan Andonovic, Moustafa Hussein

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
135 Downloads (Pure)


A modification to the Asymmetrically-Clipped Optical Orthogonal Frequency-Division Multiplexing (ACO-OFDM) technique is proposed through unipolar encoding. A performance analysis of the Bit Error Rate (BER) is developed and Monte Carlo simulations are carried out to verify the analysis. Results are compared to that of the corresponding ACO-OFDM system under the same bit energy and transmission rate; an improvement of 1 dB is obtained at a BER of 10-4 . In addition, the performance of the proposed system in the presence of atmospheric turbulence is investigated using single-input multiple-output (SIMO) configuration and its performance under that environment is compared to that of ACO-OFDM. Energy improvements of 4 dB and 2.2 dB are obtained at a BER of 10-4 for SIMO systems of 1 and 2 photodetectors at the receiver for the case of strong turbulence, respectively.
Original languageEnglish
Pages (from-to)61-68
Number of pages8
JournalOptics Communications
Early online date6 Jun 2016
Publication statusPublished - 1 Dec 2016


  • Asymmetrically-Clipped Optical Orthogonal
  • DC-biased optical OFDM (DCO-OFDM)
  • Frequency-Division Multiplexing (ACO- OFDM)
  • Multi-level quadrature amplitude modula- tion (M-QAM)
  • Unipolar OFDM (U-OFDM)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering
  • Physical and Theoretical Chemistry


Dive into the research topics of 'Performance analysis of modified asymmetrically-clipped optical orthogonal frequency-division multiplexing systems'. Together they form a unique fingerprint.

Cite this