Comparison of asymmetrically clipped optical OFDM and DC-biased optical OFDM in AWGN

被引：511

作者：

Armstrong, Jean ^{[1
]}

Schmidt, Brendon J. C. ^{[1
]}

机构：

[1] Monash Univ, Dept Elect & Comp Syst Engn, Clayton, Vic 3800, Australia

来源：

IEEE COMMUNICATIONS LETTERS | 2008年 / 12卷 / 05期

基金：

澳大利亚研究理事会;

关键词：

OFDM; intensity modulated direct detection; asymmetrically clipped optical OFDM; DC-biased optical OFDM;

D O I：

10.1109/LCOMM.2008.080193

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We present theoretical and simulation results for the performance of asymmetrically-clipped optical OFDM (ACO-OFDM) and DC-biased optical OFDM (DCO-OFDM) in AWGN for intensity-modulated direct-detection systems. Constellations from 4 QAM to 1024 QAM are considered. For DCO-OFDM, the optimum bias depends on the constellation size which limits its performance in adaptive systems. ACO-OFDM requires less optical power for a given data rate than DCO-OFDM for all but the largest constellations and is better suited to adaptive systems as the same structure is optimum for all constellations.

引用

页码：343 / 345

页数：3

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