@inproceedings{d47d45e7ac1842b2b2262bfd91e7ef11,
title = "Optimized signal constellations for ultra-high-speed optical transport",
abstract = "The joint optimization of coding and modulation formats would provide significant receiver sensitivity improvement due to the increased Hamming distance of codes. By applying Arimoto-Blahut algorithm to maximize mutual information, optimized coded-modulation has been found out together with optimized bit-mapping rule. Simulated channel capacity shows that optimized coded modulation could outperform its counterparts, such as regular qaudrature-amplitude modulation, by around 0.3dB up to about 0.9 coding rate. The improvement is found to be larger in higher modulation formats. Optimal coded-8QAM modulation has been further verified in experiment, where 40Tb/s over 6787km is demonstrated by transmitting 200G per wavelength thanks to the better receiver sensitivity of optimal coded modulation.",
keywords = "Coded-modulation, Optimized Constellation",
author = "Shaoliang Zhang and Tao Liu and Yequn Zhang and Fatih Yaman and Djordjevic, \{Ivan B.\} and Ting Wang",
note = "Publisher Copyright: {\textcopyright} 2015 SPIE.; Optical Metro Networks and Short-Haul Systems VII ; Conference date: 10-02-2015 Through 12-02-2015",
year = "2015",
doi = "10.1117/12.2078512",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Srivastava, \{Atul K.\} and Dingel, \{Benjamin B.\} and Dutta, \{Achyut K.\}",
booktitle = "Optical Metro Networks and Short-Haul Systems VII",
}