Title :
Comparison of implicit training and implicit pilot in coherent optical transmission
Author :
Sujie Fan ; Yan Li ; Lidong Wang ; Wentao Du ; Jian Wu ; Jintong Lin
Author_Institution :
State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Performance of implicit training and implicit pilot is compared in detail in 112-Gb/s 16QAM coherent optical system by simulation. Q factor performance after 18 spans of SSMF transmission results in proper size of implicit training and pilot. Simulation results demonstrate that implicit pilot based channel estimation outperforms implicit training based channel estimation about 6% because it has a better range for averaging in the process of abstracting the known information.
Keywords :
Q-factor; channel estimation; optical fibre communication; optical modulation; quadrature amplitude modulation; 16QAM coherent optical system; Q-factor; SSMF transmission; bit rate 112 Gbit/s; coherent optical transmission; implicit pilot based channel estimation; implicit training based channel estimation; Channel estimation; Optical fiber communication; Optical filters; Optical receivers; Optical reflection; Q-factor; Training; channle estimation; coherent optical tranmisssion; implicit pilot; implicit training;
Conference_Titel :
Optical Internet 2014 (COIN), 2014 12th International Conference on
Conference_Location :
Jeju
DOI :
10.1109/COIN.2014.6950628
