Performance Characterization of Optical Offset-QAM OFDM for Fiber Transmission

被引：0
|
作者：
Ouyang, Xing [1 ]
Zhao, Jian [1 ]
机构：
[1] Natl Univ Ireland Univ Coll Cork, Tyndall Natl Inst, Cork, Ireland
来源：
2014 9TH INTERNATIONAL SYMPOSIUM ON COMMUNICATION SYSTEMS, NETWORKS & DIGITAL SIGNAL PROCESSING (CSNDSP) | 2014年
关键词：
optical fiber communications; orthogonal frequency division multiplexing; transmission;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Offset quadrature amplitude modulation (offset-QAM) orthogonal frequency division multiplexing (OFDM) can greatly relax the needs of guard interval (GI) for long-distance optical transmission. In this paper, we show that 40-Gbit/s offset-16QAM OFDM can support 840-km transmission with negligible performance penalty when GI is not applied. In contrast, a GI length of 12 samples is required in conventional OFDM to realize the same transmission reach. We investigate performance sensitivity to various parameters in the offset-QAM OFDM system and show that the system only introduces slight complexity increment over conventional OFDM while offering significant net data rate improvement for fiber transmission.
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页码：758 / 762
页数：5
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