Title :
Carrier phase recovery without pilot sub-carriers in coherent optical OFDM transmission systems
Author :
Liu, Wu ; Yang, Qi
Author_Institution :
State Key Lab. of Opt. Commun. Technol. & Networks, Wuhan Res. Inst. of Post & Telecommun., Wuhan, China
Abstract :
A carrier phase recovery method for optical transmission format of 16-QAM constellations is presented. The method can also be used in coherent optical single carrier or OFDM (CO-OFDM) system to implement blind phase recovery with low computational cost. We apply this method in 112Gb/s 1040 km CO-OFDM transmission, and compare its performance to those using the fourth-power estimator. Experimental results obtained indicate that the proposed method significantly outperform the fourth-power estimator.
Keywords :
OFDM modulation; optical fibre communication; optical modulation; quadrature amplitude modulation; 16-QAM constellations; blind phase recovery; carrier phase recovery; coherent optical OFDM transmission; coherent optical single carrier; optical transmission format; Abstracts; Artificial intelligence; Bismuth; Synthesizers; Carrier phase estimation; OFDM; QAM;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
