TY - JOUR
T1 - Performance analysis of modified asymmetrically-clipped optical orthogonal frequency-division multiplexing systems
AU - Mohamed, Salma D.
AU - Shalaby, Hossam M.H.
AU - Andonovic, Ivan
AU - Aly, Moustafa H.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - 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.
AB - 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.
KW - asymmetrically-clipped optical orthogonal
KW - DC-biased optical OFDM (DCO-OFDM)
KW - frequency-division multiplexing (ACO- OFDM)
KW - multi-level quadrature amplitude modula- tion (M-QAM)
KW - unipolar OFDM (U-OFDM)
UR - http://www.scopus.com/inward/record.url?scp=84973343012&partnerID=8YFLogxK
UR - http://www.sciencedirect.com/science/journal/00304018
U2 - 10.1016/j.optcom.2016.05.077
DO - 10.1016/j.optcom.2016.05.077
M3 - Article
AN - SCOPUS:84973343012
SN - 0030-4018
VL - 380
SP - 61
EP - 68
JO - Optics Communications
JF - Optics Communications
ER -
