Performance analysis of modified Asymmetrically-Clipped Optical Orthogonal Frequency-Division Multiplexing systems

被引：2
|
作者：
Mohamed, Salma D. [1 ]
Shalaby, Hossam M. H. [2 ]
Andonovic, Ivan [1 ]
Aly, Moustafa H. [3 ]
机构：
[1] Univ Strathclyde, Dept Elect & Elect Engn, Glasgow, Lanark, Scotland
[2] Egypt Japan Univ Sci & Technol, Dept Elect & Commun Engn, Alexandria 21934, Egypt
[3] Arab Acad Sci & Technol, Coll Engn & Technol, Alexandria, Egypt
来源：
OPTICS COMMUNICATIONS | 2016年 / 380卷
关键词：
Asymmetrically-Clipped Optical Orthogonal Frequency-Division Multiplexing (ACO-OFDM); DC-biased optical OFDM (DCO-OFDM); Multi-level quadrature amplitude modulation (M-QAM); Unipolar OFDM (U-OFDM); OFDM;
D O I：
10.1016/j.optcom.2016.05.077
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：61 / 68
页数：8
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