Semi-analytical approach for performance evaluation of direct-detection OFDM optical communication systems

被引:24
|
作者
Alves, Tiago M. F. [1 ]
Cartaxo, Adolfo V. T. [1 ]
机构
[1] Univ Tecn Lisboa, Dept Elect & Comp Engn, Inst Telecomunicacoes,Inst Super Tecn, Grp Res Opt Fibre Telecommun Syst, P-1049001 Lisbon, Portugal
来源
OPTICS EXPRESS | 2009年 / 17卷 / 21期
关键词
TRANSMISSION; FIBER;
D O I
10.1364/OE.17.018714
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A semi-analytical method to evaluate the bit error ratio (BER) in direct-detection (DD) optical fibre transmission systems employing orthogonal frequency division multiplexing (OFDM) and optically pre-amplified receivers is proposed. The method considers a Gaussian approach for the signal at the equalizer output and allows evaluating accurately the BER of each OFDM subcarrier for the receiver structure considered and for practical optical and electrical filters shapes, being a powerful tool to perform the optimization of these systems. The results obtained by the proposed method have shown excellent agreement with Monte Carlo estimates for DD-OFDM ultra-wideband radio signals and for two different DD-OFDM signals proposed for long-haul systems. (C) 2009 Optical Society of America
引用
收藏
页码:18714 / 18729
页数:16
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