Pilot-based bind phase estimation method for coherent optical OFDM

摘要：

　　In this paper,a pilot-based blind(PBB)phase estimation method for coherent optical orthogonal frequency-division multiplexing(CO-OFDM)is proposed.Instead of inserting the pilot-subcarriers that are loaded with the already known information in the OFDM signal,the unknown and specially designed signal is used to replace the signal on the pilot subcarriers to decrease the waste of spectrum and also demonstrated well performance for the phase noise compensation.Both the proposed PBB and conventional pilot-aided(PA)estimation methods are demonstrated in a CO-OFDM transmission experiment,which is modulated by 4 quadrature amplitude modulation(4-QAM)format and transmitted over 1760-km standard single-mode fiber(SSMF).The experimental results show that the proposed PBB method still achieves the similar performance to that of the conventional PA method.

关键词： CO-OFDM Phase noise estimation Blind estimation

作者: Xuebing Zhang Jianping Li Chao Li Ming Luo Haibo Li Zhixue He Qi Yang Zhaohui Li

作者单位: Institute of Photonics Technology,Jinan University,Guangzhou,Guangdong,510632,China State Key Lab. of Optical Comm. Technologies and Networks,Wuhan,Hubei,430074,China

会议类型: 国际会议

会议名称: The 13th International Conference on Optical Communications and Networks, ICOCN 2014(2014第13届光通信与网络国际会议)

会议地点: 苏州

会议语种:英文

页码: 1-3

在线出版日期: 2014-11-09（万方平台首次上网日期，不代表论文的发表时间）