Faster-than-Nyquist and beyond: how to improve spectral efficiency by accepting interference

被引：50
作者：
Colavolpe, Giulio [1 ]
Foggi, Tommaso
Modenini, Andrea
Piemontese, Amina
机构：
[1] Univ Parma, Dipartimento Ingn Informaz, I-43124 Parma, Italy
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 27期
关键词：
INFORMATION RATES; TRANSMISSION; CHANNELS;
D O I：
10.1364/OE.19.026600
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigate the application of time and frequency packing techniques, an extension of the classical faster-than-Nyquist signaling, to long-haul optical links. These techniques provide a significant spectral efficiency increase and represent a viable alternative to overcome the theoretical and technological issues related to the use of high-order modulation formats. Adopting these techniques, we successfully demonstrate through simulations the transmission of 1 Tbps over 200 GHz bandwidth in a realistic (nonlinear) long-haul optical link. (C) 2011 Optical Society of America
引用
收藏
页码：26600 / 26609
页数：10
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